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Acano solution
Acano Server Release 1.6.14
Release Notes
March 2015
76-1005-18-Ar
Contents
Contents
1
Introduction ....................................................................................................................... 4
1.1 Before upgrading...................................................................................................... 4
2
New Features/Changes in R1.6......................................................................................... 5
2.1 New Functionality from R1.6.3 ................................................................................. 5
2.1.1 Programmable MTU for media packets .......................................................... 5
2.1.2 Tenant ID now returned in when retrieving API call leg information ................ 5
2.2 Scalability & Resilience ............................................................................................ 5
2.2.1 Multiple TURN Servers and Web Bridges Supported ..................................... 5
2.2.2 Recommended XMPP server moved to Core server and new Load Balancer
on Edge server ......................................................................................................... 6
2.2.3 Call Bridge Support on Multiple Interfaces ..................................................... 6
2.2.4 coSpace Database Clustering Supported....................................................... 7
2.2.5 XMPP Server clustering ................................................................................. 7
2.3 Hyper-V Virtual Machine Support ............................................................................. 7
2.4 Branding Features.................................................................................................... 8
2.5 TIP Support .............................................................................................................. 8
2.6 Lync Improvements .................................................................................................. 8
2.6.1 Lync Conferencing Support ............................................................................ 8
2.6.2 Lync Federation Support ................................................................................ 9
2.7 Skype Support.......................................................................................................... 9
2.8 Client Features ......................................................................................................... 9
2.8.1 Changed WebRTC Client behavior with Firefox ........................................... 10
2.9 In-call Features ...................................................................................................... 10
2.9.1 Participants .................................................................................................. 10
2.9.2 In-call DTMF controls ................................................................................... 11
2.9.3 User-oriented permissions ........................................................................... 11
2.10 Security Enhancements ......................................................................................... 11
2.11 Miscellaneous Improvements ................................................................................. 12
2.11.1 CDR Improvements ..................................................................................... 12
2.11.2 Improvements to telephone number dialing .................................................. 12
2.11.3 LDAP sync improvements ............................................................................ 13
2.11.4 Alarms ......................................................................................................... 13
2.11.5 Logging enhancements ................................................................................ 13
2.11.6 BFCP Client mode support........................................................................... 13
2.11.7 Ability to add SAN names to the MMP command PKI CSR .......................... 13
2.12 Summary of API Additions & Changes ................................................................... 14
2.13 Summary of Web Admin Interface Additions & Changes ........................................ 14
3
Notes on Installing and Upgrading to R1.6 ...................................................................... 16
3.1 New R1.6 Deployments.......................................................................................... 16
3.1.1 Deployments using a single host server ....................................................... 16
3.1.2 Deployments using multiple host servers ..................................................... 16
3.2 Upgrading to Release R1.6 .................................................................................... 17
3.3 Updating the XMPP Configuration for 1.6 ............................................................... 18
3.4 Upgrading from a Previous R1.6 Release with a Database Cluster ........................ 19
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Contents
3.5
Downgrading .......................................................................................................... 20
4
Resolved Issues .............................................................................................................. 21
Resolved in R1.6.14 ............................................................................................... 21
Resolved in R1.6.12 ............................................................................................... 22
Resolved in R1.6.11 ............................................................................................... 22
Resolved in R1.6.10 ............................................................................................... 23
Resolved in R1.6.9 ................................................................................................. 24
Resolved in R1.6.8 ................................................................................................. 25
Resolved in R1.6.4 ................................................................................................. 26
Resolved in R1.6.2.2 .............................................................................................. 27
Resolved in R1.6.2 ................................................................................................. 27
Resolved in R1.6.1 ................................................................................................. 27
Resolved in R1.6 .................................................................................................... 28
5
Known Limitations ........................................................................................................... 30
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1 Introduction
This release note describes the new features, improvements and changes in Release 1.6 of the
Acano solution software for both Acano Server and virtualized deployments and specifically bug
fixes in maintenance release R1.6.13.
R1.6 provides much more flexibility in deployment topology than previous releases, therefore be
sure to read the Notes on Installing and upgrading to R1.6.
NEW CAUTIONS FOR RELEASE 1.6:
XMPP configuration works differently in R1.6; therefore if you upgrade from R1.2 or an early
R1.6 Beta the XMPP component name is lost on upgrade, along with its Secret. These need to
be configured with the new commands. There is a new Domain field in the XMPP Settings
section in the Web Admin Interface Configuration > General page and some previous fields
are no longer required. This is described later in these release notes and also in the R1.6
Deployment Guides.
See section 6 of the R1.6 Acano Solution Scalability and Resilience Deployment Guide for
details on how to configure the XMPP and Load Balancer in a split Core/Edge deployment.
Call Bridges can now be set up to listen on more than one interface with the callbridge
listen <interface whitelist> command.
The procedures for branding and customization have changed for the R1.6 release. The old
methods no longer work with R1.6. If you have customized the Acano solution, you need to
rename some of the files.
1.1 Before upgrading
If you are upgrading from a release before 1.2.12 and you have an Acano hardware server with
serial number less than 00072 then you need to check your license.dat file, you may need to
obtain a replacement license. Follow these steps:
1. SFTP the license.dat file off the Acano server and open license.dat in a text editor
2. Check line 7 of license.dat, if it reads
licensed product name=M-Link version=16.0 expires=unlimited options="0”
then contact support before the upgrade to obtain a replacement licence.dat file.
If line 7 reads:
licensed product name=M-Link version=16.9 expires=unlimited options="0”
you do not need to replace license.dat, proceed with the upgrade
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2 New Features/Changes in R1.6
Note: We rarely add new features in maintenance releases but see section 2.12.7 on the ability
to add SAN names to the MMP command PKI CSR.
2.1 New Functionality from R1.6.3
2.1.1 Programmable MTU for media packets
From R1.6.3 you can set the maximum transmission unit (MTU) to better match your network. If
there's an MTU restriction in your network (or in the network that a specific interface is
connected to) then you might configure the MTU value to ensure that the size of outgoing media
packets does not exceed this limit. This prevents IP fragmentation which could be less efficient
than (a slightly greater number of) un-fragmented packets. Also fragmented packets may not be
supported properly by the receiving device, and therefore cause media issues and/or failures.
Setting the MTU size is done by signing in to the MMP of your Acano server and using the
following command:
iface <interface> mtu <value>
e.g.
iface a mtu 1400
2.1.2 Tenant ID now returned in when retrieving API call leg information
When retrieving call leg information via an API GET method for "/callLegs", "/callLegs/<call leg
id>" or "/calls/<call id>/callLegs", the response now includes the tenant ID (if applicable) for the
call legs in question.
2.2 Scalability & Resilience
Notes:
There is a new Web Admin Interface Configuration > Cluster page for use with Call Bridge
clustering.
There is a new Scalability & Resilience Deployment Guide. Use this instead of the Acano
solution Deployment Guide to set up a resilient deployment with clustering.
2.2.1 Multiple TURN Servers and Web Bridges Supported
R1.6 supports multiple TURN as described in the Scalability & Resilience Deployment Guide.
The benefits of being able to configure a Call Bridge to be able to use multiple TURN servers
include resilience, scalability and geographical efficiency for media traversal.
R1.6 supports multiple Web Bridge servers as described in the Scalability & Resilience
Deployment Guide.
See the figure below.
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Each Web Bridge can be associated with a tenant, which restricts the calls that can be joined via
that Web Bridge to those owned by that tenant. (Therefore a signed-in user associated with one
tenant can log in as a guest participant using a Web Bridge associated with another tenant.)
The multiple TURN and Web Bridge servers are configured through the API with a number of
new nodes in the object tree for this. See the API Reference for details.
2.2.2 Recommended XMPP server moved to Core server and new Load Balancer
on Edge server
In split deployments when using a resilient deployment running R1.6 we recommend that you
move the XMPP server to the Core server.
Each Edge server should run the new Load Balancer (as shown in the figure above), which
provides a single point of contact for clients. You also need to set up a trunk between the Core
and the Edge which will carry specific incoming traffic. See the Scalability and Resilience
Deployment Guide for details.
If you run the XMPP server on the Core server then this Core server now requires an XMPP
license; previously only the Edge server needed this license as the server which was running the
XMPP server. This is not an issue if your Core server is an Acano Server (X2 or X3) because
these models come with an XMPP license pre-installed. However, if you move to a virtualized
Core server, you require a new XMPP license because the license is tied to the MAC address –
contact support@acano.com with this address.
Note: If you are using an Acano client v1.2.x release with R1.6, then certain data is stored on
the XMPP server causing presence subscriptions to be lost if the XMPP server is moved to the
Core server. These subscriptions are restored automatically on running a R1.3.x client release,
or can be manually recovered on a R1.2.x client by toggling the favorite status of the contact.
2.2.3 Call Bridge Support on Multiple Interfaces
Call Bridges can now listen on multiple interfaces with the callbridge listen <interface
whitelist> command.
This allows the Call Bridge to be connected to multiple networks and receive calls from any of
them. For example, if one interface is in the DMZ and another interface is on the internal network
then calls can be received on either interface without any external traversal solution. This
functionality can be used either for calls into coSpaces or for gateway calls.
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2.2.4 coSpace Database Clustering Supported
In previous releases the coSpace database was automatically configured and therefore there
was no need to call it out as a separate component in the Core server. From R1.6 the coSpace
database does not have to be (but can be) co-located with the Call Bridge (see the figure
below).
In addition, R1.6 supports multiple coSpace databases, one of which is the master database
(this is a dynamic selection process). The contents of the master are replicated to the other
databases in the cluster.
The Scalability & Resilience Deployment Guide describes the options and how to set up a
coSpace database cluster.
Note that each Call Bridge dynamically connects to the master database.
2.2.5 XMPP Server clustering
XMPP server clustering is a beta feature in R1.6. The Scalability & Resilience Deployment
Guide describes a procedure for setting this up, but we do not recommend using XMPP server
clustering in a production deployment.
2.3 Hyper-V Virtual Machine Support
The Acano solution can now be deployed on top of Microsoft Hyper-V hypervisor. Acano
supports Hyper-V 2012 and 2012 R2. Further information about deploying Acano with Hyper-V
is available in the Acano Solution Virtual Deployment Installation Guide.
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2.4 Branding Features
A license is now required for some branding features. Contact your Acano reseller for details.

As in R1.2, you can customize the WebRTC landing page—and it can be done in the same
way: you can still configure one Web Bridge via the Web Admin Interface, and its
customization can be configured as before (and any pre-existing configured Web Bridge and
its customization works as before).
However in 1.6, you can now configure multiple Web Bridges for a Call Bridge to use, and
these need to be configured via the API; moreover with the correct license, any APIconfigured Web Bridge can be customized. Customization for these Web Bridges works by
specifying an archive file containing all the customization resources needed by the Web
Bridge. If you are using multiple Web Bridges we recommend not using the Web Admin
Interface for customization at all.

Call branding
There are two types of call customization controlled by branding licensing:

Messages heard and image seen when dialing into an IVR

Messages heard and image seen when dialing directly into a coSpace as a SIP
(including Lync) call
This customization can either be set at a system level or at a more fine-grained level
depending on the license in use.
See the Acano solution Customization Guidelines document for details and the details about
branding profiles in the API Reference.
2.5 TIP Support
This feature allows you to make calls to and accept calls from both single- and triple-screen TIP
devices. These calls support both presentation and encryption, and in the case of triple-screen
systems, new layouts are used that span all three screens.
You must enable TIP support: in the Web Admin Interface go to Configuration > Call Settings
and set TIP (Telepresence Interoperability Protocol) Calls to Enabled. Then set both SIP
Bandwidth Settings to at least 4000000.
Currently only Cisco CTS and TX systems running TIPv8 are supported. Equipment from other
vendors has not been tested. If your CTS or TX system is using an earlier version of TIP then it
will need to be upgraded to a later software release before it will interwork satisfactorily with the
Acano solution.
2.6 Lync Improvements
There have been a number of Lync improvements and functional enhancements
2.6.1 Lync Conferencing Support
Acano R1.6 supports the ability to participate in Lync conferences set up (for example) by:
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
a Lync user in a point-to-point call (e.g. with another Lync user) dragging in/adding another
call leg (either an ad hoc destination or a pre-configured favourite) that needs the Acano
solution's involvement (e.g. a SIP “gatewayed” destination)

a Lync user selecting a group of other users (e.g. from their Favorites) and starting a multiparty call
In these cases, a Lync conference starts on the Lync system (e.g. AVMCU), and any call legs
involving the Acano solution are set up via a conference invitation from Lync; the Acano solution
then making connection(s) to the Lync conference. The Acano Call Bridge does not host the
conference, but performs any necessary interop functionality to enable non-native Lync call legs
(for example, standard SIP connections or Acano client calls) to be present in the Lync
conference hosted on the AVMCU. This feature works with both Lync 2010 and Lync 2013
conferencing, other Lync features such as application sharing and IM work normally in these
calls.
Note: However, if you try and add a coSpace, this would cause a cascade between two
conferences. This is not currently support because the user experience would be poor. A future
release may include functionality to set up the layouts properly and share the roster lists (for
example) have the cascade work seamlessly, but for now this feature supports single endpoints
and Acano users only, not coSpaces.
2.6.2 Lync Federation Support
In previous releases it was necessary to add dial plan rules for all external Lync domains; this is
no longer the case. The R1.6 release adds support for federation with Microsoft Lync. This
allows calls to be made from the Acano server to any Lync domain and vice versa. To allow
inbound calls you must configure the necessary DNS SRV record. This has the form of
_sipfederationtls._tcp.domain.com
2.7 Skype Support
The R1.6 version of the Acano Solution supports audio, IM and presence between Skype users
and the Acano system. This allows for a user to call the Acano system from Skype, or to be
called from the Acano system when on Skype.
This feature requires configuration of Skype to Lync integration. To configure Skype integration,
you must provision details of the Acano Edge server and your domains on Microsoft’s systems.
For more details see their documentation here and here.
2.8 Client Features
The Acano solution R1.6 provides a number of Acano client enhancements, for example
coSpace chat deletion. If you use R1.6 with an Acano R1.3.x client (currently PC Client only) a
Delete messages button is displayed to signed-in users who have permissions to delete
messages. These permissions are set in the API; see the API Reference Guide and the Acano
Client R1.3.x release notes. All messages for the coSpace displayed when the button is pressed
are deleted and are removed from view for every coSpace member. The action is audited in the
logs.
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2.8.1 Changed WebRTC Client behavior with Firefox
From R1.6, the WebRTC client behaves differently:

If you follow a web link to join a call in Firefox

If the Acano PC Client is installed, Firefox will launch the PC Client because it is more
stable and allows screen sharing (WebRTC on Firefox does not support screen sharing)

If the PC client is not installed, Firefox takes you into the call using WebRTC so you
enter the call as quickly as possible, but without screen sharing functionality

If you are a registered user, you can click Sign in in Firefox, instead of Join call, and from
here you can sign into the WebRTC client and join a call

When following a web link, you can enter the call in WebRTC even if you have the PC Client
installed:

In the Firefox web page, enter your call details and click Join call

When the Launch Application dialog appears, click Cancel

Go back to Firefox and click Help me to join the call

You see a button Join in browser. Click this to enter the call in Firefox
2.9 In-call Features
2.9.1 Participants
R1.6 introduces the new API object type and the concept of a "participant" alongside the existing
"callLeg" objects.
A participant comprises one or more call legs related to the same user for example in some Lync
calls.
With this new object each Call Bridge involved in a distributed meeting (one hosted by more
than one Call Bridge) has the complete picture of the participant list, including participants
hosted on another Call Bridge. This information is available via the API:

For participants hosted on the Call Bridge being queried, you can retrieve a participant’s call
legs

For participants hosted on a "remote" Call Bridge, querying a participant provides the ID of
the Call Bridge on which their call legs are hosted so you can
In addition, using the API callProfile object you can set a limit on the number of participants for a
meeting; then meetings for whom the callProfile is in force will have the limit enforced:

callProfiles can be attached at the system-wide, tenant-wide or on an individual coSpace
level, with the most specific taking effect

if a meeting's participantLimit has been reached, no new participants can be added

even if the meeting's participantLimit has been reached, new call legs for existing
participants can be added; for example, presentation call legs in addition to an existing audio
/ video call leg
When a limit is reached, the API returns the appropriate "failureReason" in an error response.
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See the API Reference for details.
2.9.2 In-call DTMF controls
In R1.6, SIP endpoint users (including those on audio-only connections) can perform various
functions via DTMF, i.e. numeric sequences dialed with a keypad:

Mute/unmute their audio

Mute/unmute all but themselves

End a meeting (i.e. disconnect everyone including themself)
Using the API, you set up dtmfProfile objects that define which sequences correspond to which
user-initiated operations. The dtmfProfiles can be applied at the system level or per-tenant. If
you are working with any third party products set the profile to use the DTMF sequences it sends
and expects. The operations that any endpoint is allowed to perform are controlled by the
callLegProfile in use, as described below.
2.9.3 User-oriented permissions
R1.2 introduced the presentationContributionAllowed flag that applied per call leg via the API.
Those call legs for which this ends up being "false" cannot contribute a new presentation to
other participants in its call. This mechanism is being extended for R1.6 via the call leg profile:

A presentationViewingAllowed flag per call leg to control the ability to see any active
presentation media. If set to false, this call leg’s participant doesn't see any presentation
currently happening in the meeting

Whether a call leg’s participant is "allowed to send/receive video" within a call; if set to false,
then the participant sends and receives audio-only experience even when using a videocapable Acano client or SIP endpoint
In addition it is possible to configure which DTMF operations any participant can use via
configuration of:

An endCallAllowed flag to control the ability to end the meeting. If set to false, this call leg’s
participant cannot use DTMF to end the meeting

A muteOthersAllowed flag to control the ability to mute other participant. If set to false then
this call leg’s participant cannot use DTMF to mute other participants
The DTMF tones for the operations are controlled by the dtmfProfile as described above.
2.10 Security Enhancements
There are a number of new security features in R1.6. All of these are described in the Acano
solution MMP Command Reference.

Additional password rules; for example, user rule max_failed_logins <true|false>, user rule
max_idle <number> and user rule min_digits <number>

Creation of simple firewall rules for both the media and admin interfaces. (Note that this is
not intended to be a substitute for a full standalone firewall solution.) Firewall rules must be
specified separately for each interface
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
The XMPP certificate MUST contain the domain name as a SAN within the certificate
otherwise PC Clients will fail to connect. (In previous releases we recommended having the
Common Name in the certificate being the same as the FQDN. In R1.6 you must define that
— plus a Subject Alternative Name added with the domain listed.) If this is not the case then
the PC Client will pop up a warning, but allow the user to continue

Using audio and video DSCP values for RTCP

New settings and values for compatibility (see the SIP Settings section in the Configuration
> Call Settings page

Resource Priority: allows you to configure a value for SIP’s “Resource-Priority” field

DSCP Mode: whether the assured or non-assured DSCP values should be used for
outgoing audio and video streams

Presentation Video Channel Operations: whether the Acano Call Bridge advertises
presentation capabilities; in rare cases this may need to be disabled for legacy
compatibility reasons
2.11 Miscellaneous Improvements
2.11.1 CDR Improvements
Reporting in callLegEnd records now shows:

Whether main video was active during that call leg's lifetime, and, if so, for what proportion
of the call leg's lifetime. Main video contribution and main video viewing are reported
separately

Whether presentation video was active during that call leg's lifetime, and, if so, for what
proportion of the call leg's lifetime. Presentation contribution and presentation viewing are
reported separately
The CDR receiver URL is no longer set in the Web Admin Interface Configuration > API page
but in the Configuration > CDR page.
See the CDR Reference for details.
2.11.2 Improvements to telephone number dialing
Previously, the Telephone Dialing section in the Web Admin Interface Configuration >
Outbound calls page controlled how dialed numbers were transformed (typically to make them
"external" / international for use through an outbound PSTN gateway). Specifically, you could set
what would be added to the front of any such dialed number and / or what to replace a "+" with.
In R1.6, that section has been replaced by a Dial Transforms section with fields to match the
parameters you can now also set via the API. Therefore from R1.6, telephone numbers:

can use regular expressions

can be managed via the API as well as the Web Admin Interface

are in the coSpace database (coSpace database cluster if one has been set up)
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2.11.3 LDAP sync improvements
For LDAP syncs started via the API, in R1.6 additional sync status information is available, even
after the sync has completed (if requested when starting the sync). See the API Reference.
2.11.4 Alarms
In R1.6 the Acano solution generates more alarm types. This has necessitated changing the
alarm handling to make it more scalable and therefore the format of alarms returned by the API
has changed. For example, it returns a "total" value in the API response so that you know
whether there are more alarms active than are returned in a single response. Similarly, the Web
Admin Interface page rendering of alarms now allows you to navigate through multiple pages of
active alarms.
2.11.5 Logging enhancements
When you enable detailed logging, a number of new messages are captured to improve
analysis.
2.11.6 BFCP Client mode support
Previously, the Acano solution only supported BFCP server mode, from R1.6 the solution can
also act as a BFCP client. For example, previously when working with the Codian MCU without
any interworking, no content could be exchanged because neither could assume the 'client' role.
2.11.7 Ability to add SAN names to the MMP command PKI CSR
The MMP command pki csr <key/cert basename> [<attribute>:<value>] now
takes subjectAltName as an attribute. This was Feature Requests 5874 and 7055.
IP addresses and domain names are supported for subjectAltName in a comma separated list.
For example:
pki csr test1 CN:example.exampledemo.com subjectAltName:exampledemo.com
pki csr test1 CN:example.exampledemo.com C:US L:Purcellville O:Example
OU:Support ST:Virginia subjectAltName:exampledemo.com
pki csr test3 CN:example.exampledemo.com C:US L:Purcellville O:Example
OU:Support ST:Virginia subjectAltName:exampledemo.com,192.168.1.25,
xmpp.exampledemo.com,server.exampledemo.com,join.exampledemo.com,
test.exampledemo.com
Keep the size of certificates and the number of certificates in the chain to a minimum; otherwise
TLS handshake round trip times will become long.
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2.12 Summary of API Additions & Changes

From R1.6 you no longer set API authentication credentials via the Web Admin Interface,
but in the MMP using the commnd user add <username>
(admin|crypto|audit|appadmin). This command prompts for the user’s password;
see the MMP Command Reference for details

The reply to a GET on "/api/v1/system/status" now includes the software version

The callLegProfile object has more fields:





presentationViewingAllowed: whether affected call legs are allowed to view active
presentations
videoMode: whether video is allowed in a call leg
endCallAllowed: whether call legs using this call leg profile can end the meeting for
everyone
muteOthersAllowed: whether call legs using this call leg profile can change the mute
status of other participants
New profile objects:






callProfile: allows per-call parameters to be set
callBrandingProfile: allows branding of "in-call" behaviour
ivrBrandingProfile: allows branding of for IVR voice prompts and the IVR background
image
clientCallBrandingProfile: allows branding at a per-coSpace level for Acano clients (note
this feature is still in development)
dtmfProfile: allows configuration of DTMF command sequences at a system-wide or pertenant level
userProfile: allows permissions to be per user

New object tables (turnServers and webBridges)

Clustered Call Bridge support:


New callBridges table

outbound dial plan rules can now be set to apply to specific individual Call Bridges (via
their ID in the callBridges table)
Multiple IVR numbers linked to specific tenants or customizations (e.g. for multi-language
support)


inboundDialPlanRules can now apply to IVR URIs (as well as coSpaces and users)
new edge and trunk commands for the Proxy and TLS Trunk
2.13 Summary of Web Admin Interface Additions & Changes

New Domain field in the Configuration > General page XMPP Server Settings section and
some fields are no longer required

New SIP Settings section in Configuration > Call Settings page

New Target IVRs in the Calls matching table in Configuration > Incoming Calls
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
Dial Transform section replaces Telephone Dialing section in Configuration > Outbound
Calls

New Configuration > CDR Settings page

New Configuration > Cluster page

New options in the renamed Logs > Detailed Trace page

Configuration > API Settings page removed
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3 Notes on Installing and Upgrading to R1.6
CAUTION: Before upgrading to R1.6 you must take a configuration backup using the backup
snapshot <filename> command and save the backup safely on a different device. See the
MMP Command Reference document for full details.
3.1 New R1.6 Deployments
3.1.1 Deployments using a single host server
If you are installing the Acano solution for the first time on a single host server (a “combined”
deployment), we recommend that you read and follow the documentation in the following order:
1. Appropriate Installation Guide for your Acano Server or virtualized host.
2. The Acano solution R1.6 Deployment Guide enabling all the solution components on the
single host.
3.1.2 Deployments using multiple host servers
If you are installing the Acano solution for the first time on multiple host servers the
documentation to read and follow depends on your deployment type. We recommend that:

All new split Core/Edge installations using R1.6 deploy the XMPP server on the Core server
and deploy the new Load Balancer on the Edge server even if you have no current plans to
use the clustering features of R1.6.
Read and follow the documentation in the following order:
a. Appropriate Installation Guide for your Acano server or virtualized deployment
b. The Acano solution R1.6 Deployment Guide enabling all the solution components
except the XMPP server and Load Balancer on the appropriate host
c.
Section 6 of the Acano Solution R1.6 Scalability and Resilience Deployment Guide for
details on how to configure the XMPP and Load Balancer in a split Core/Edge
deployment

Customers already using split Core/Edge deployments prior to R1.6 who are now migrating
to R1.6 should move the XMPP server to the Core server because this is the tested
configuration for R1.6. Read section 6 of the Acano Solution R1.6 Scalability and Resilience
Deployment Guide for details on how to configure the XMPP server and Load Balancer in a
split Core/Edge deployment. Be sure to read the caution at the beginning of that section

Customers deploying a scalable or resilience solution for the first time (that is deployments
with multiple Core and/or Edge servers) should read and follow the documentation in the
following order:
a. Appropriate Installation Guide for your Acano Server or virtualized host (or both
installation guides if you are using both Acano Servers and virtualized hosts).
b. The Scalability & Resilience Deployment Guide.
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3.2 Upgrading to Release R1.6
The instructions in this section apply to both Acano Server and virtualized deployments with a
previous Acano solution release already installed.
Upgrading the firmware is a two-stage process: first, upload the upgraded firmware image; then
issue the upgrade command. (This restarts the Acano solution: the restart process interrupts all
active calls running on the Acano solution; therefore, this stage should be done at a suitable
time so as not to impact users − or users should be warned in advance.
To install the latest firmware on the Acano server follow these steps:
1. Obtain the upgrade image from the secure partner section of the Acano website. You should
have obtained a file called upgrade.img. If this is not the case – rename the file to
upgrade.img.
Note: If you are using WinSCP for the file transfer, ensure that the transfer setting is ‘binary’ not
‘text’. Using the incorrect setting results in the transferred file being slightly smaller than the
original – and this prevents successful upgrade.
CAUTION: After upgrading from R1.1.x you must check your Outbound Calls dial plan rules.
2. Using a SFTP client, log into the MMP using its IP address. The login credentials will be the
ones set for the MMP admin account. If you are using Windows, we recommend using the
winSCP tool.
Note1: You can find the IP address of the MMP’s interface with the ipv4 admin command or
the equivalent ipv6 command.
Note2: The SFTP server runs on the standard port, 22.
Note3: After copying the upgrade.img file, you will not be able to see it listed as being in the file
system; this is normal.
3. Copy the software to the Acano Server/ virtualized server.
4. To apply the upgrade, issue the upgrade command.
a. Establish a SSH connection to the MMP and log in.
b. Initiate the upgrade by executing the upgrade command.
upgrade
The Acano Server/ virtualized server restarts automatically: allow 10 minutes for the process
to complete.
5. Verify that the Acano solution is running the upgraded image by re-establishing the SSH
connection to the MMP and typing:
version
6. Check the Configuration > Outbound Calls rules updating the Local Contact Domain field
and completing the new Local From Domain field if necessary.
7. Update the customization archive file when available.
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8. Only if you are deploying a scaled or resilient deployment (with more than one server host—
Acano server, virtualized host or a combination) read the Scalability & Resilience
Deployment Guide and plan the rest of your deployment order and configuration.
9. Go on to the next section.
3.3 Updating the XMPP Configuration for 1.6
XMPP configuration works differently in R1.6; therefore if you upgrade from R1.2 some of the
configuration settings are lost and you must use the new procedure to set up the XMPP server
again.
After upgrading the firmware,
1. Sign into the XMPP server host server’s MMP.
2. Configure the XMPP server with the following commands:
xmpp disable
xmpp domain <domain-name>
The following is an example where domain-name is example.com.
xmpp domain example.com
xmpp enable
3. To allow a Call Bridge to access the XMPP server (after configuration), provide a name for
the Call Bridge to use e.g. cb_london:
xmpp callbridge add <callbridge name>
for example
xmpp callbridge add cb_london
A secret is generated; you see:
acano>xmpp callbridge add cb_london
Added callbridge: Secret: aB45d98asdf9gabgAb1
4. Note the domain, call bridge name and secret generated in the previous steps because they
are required later when you the Web Admin Interface to configure the Call Bridge access to
the XMPP server. (If you lose the details use the xmpp callbridge list command.)
5. Log in to the Web Admin Interface and configure the XMPP server settings as follows:
a. Go to Configuration > General.
b. Set the following in the XMPP Server Settings section, (where example.com is replaced
with your domain):

Unique Call Bridge name = cb_london

Domain = example.com

Server Address = localhost:5223
Notes:
If you are using DNS to locate the XMPP servers it is not necessary to configure
the server address
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If you are using a two Acano Server deployment or a split virtual deployment use
the IP address of the Edge server/virtualized server. See section on split
deployments in the deployment guide.

Shared Secret = the component secret generated in earlier by the mmp command

If the Authentication Suffix was previously configured to a value other than * (star)
then this field is shown. It should be configured = * (star)
c. Click Submit at the bottom of this page.
6. Go to Status > General and verify the server connection.
You should see details similar to the following:
3.4 Upgrading from a Previous R1.6 Release with a Database
Cluster
If you are upgrading from a previous R1.6 release and running a database cluster, you must
upgrade the database schema.
Note: These instructions do not apply when you first set up database clustering, but these steps
must be run after every subsequent Core server software update; otherwise the Call Bridges
the clustered coSpace databases that they attach to will be out-of-step with regards to the
database schema.
The upgrade path for a clustered system is:
1. Upgrade each database node one by one, ensuring each node is up and the database
cluster status command reports full connection to the cluster, BEFORE upgrading the
next one.
At this stage database cluster status should report healthy on all nodes, but the Call
Bridges may not be operating correctly and will show database errors.
2. Use the command database cluster status again to identify the master node.
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3. Log into this master node and issue the command database cluster
upgrade_schema.
4. Verify that the operation was successful by using database cluster status.
A status of Enabled means success, whereas Error indicates an issue.
3.5 Downgrading
To return to the older version of R1.6, use the regular upgrade procedure to “upgrade” to the
appropriate version, and then restore the configuration backup for that version.
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4 Resolved Issues
Resolved in R1.6.14
Reference
Issue
Summary
6438
In some deployments WebRTC client
connections to Web Bridges can drop
unexpectedly.
When using multiple Web Bridge components, DNS is
used by the browser to locate the Web Bridges. If
multiple DNS records have the same priority, the browser
can switch between these during a call which leads to
the call being dropped. This is fixed in R1.6.14
7403
Firefox 35 WebRTC client cannot
connect to coSpace
The WebRTC client tries 'connecting' for a while but
eventually gives up. This is fixed in R1.6.14
7171
Media problems between WebRTC
clients in a distributed conference
Two WebRTC clients connecting on different call bridges
in a distributed call, results on media attempting to load,
but continues in a loop with ICE negotiation. Adding a
second participant to either bridge (WebRTC, SIP, thick
client) causes the issue to go away. This problem is
resolved in R1.6.14
7435
Load balancer fails after upgrade to a
later version of 1.6 software
After upgrading from a release earlier than R1.6.9 to a
later release, some customers have found that the load
balancer stops working if they chose to configure the
load balancer on port 3999. This was due to a conflict on
the use of port 3999 for an internal function and is
resolved in release 1.6.14
7472
Lync client does not receive media
In some deployments and only sometimes, the Acano
server is not sending the 200OK as the server does not
think ICE has completed for the Video channel. This
issue is fixed in R1.6.14
7557
Skype calls fail after 30 seconds to
direct federated Lync servers
While incoming Lync calls are fixed in R1.6.12 calls from
a Skype client might not be, this is now fixed in R1.6.14
7667,7786
Server crash in distributed
conferencing configuration
This crash has been seen occasionally in deployments
using distributed conferencing. It can occur if a call is
being placed at the exactly the same time as the
database is in the process of re-electing a master node.
This crash is fixed in R1.6.14
7707
WebRTC client does not work with
Chrome version 41.0.2272.64 beta-m
(64-bit)
For those customers testing this latest Chrome beta, we
have fixed an interop issue that was preventing WebRTC
clients from working with this beta version of Chrome.
This is fixed in R1.6.14
7770
When a SIP endpoint dialed in as
host, puts the call on hold, the guests
are deactivated from the call
When a SIP endpoint dials into the "host" URI and a
guest is using the "guest" uri, when the host puts the call
on hold, the guest is immediately disconnected from the
call. This is fixed in R1.6.14
Release R1.6.13 – not published
Acano Solution: Acano Server R1.6.14 Release Notes 76-1005-18-Ar
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Resolved in R1.6.12
Reference
Issue
Summary
6323
Database out of sync alarm occurring
for up to 5 minutes for no apparent
reason on deployments with clustered
databases
In R1.6.11 and earlier the Database sync alarm is too
sensitive and can trigger even when there is no reason
to, this has been fixed in R1.6.12.
7313
Callbridge crash resulting in all calls
being dropped
Fixed in R1.6.12
7430
Acano Server webadmin interface
Status>General Page Not Loading
On Server, happens after a few days
of restarting the server.
Other webadmin interface pages load ok, but the
status>general page does not load. This was triggered
by trying to display a long list of warning messages on
this page. This is fixed in R1.6.12
7471
CVE-2015-0235 - Ghost vulnerability
This issue was reported as Security alert 017 and is fixed
in R1.6.12.
7485
Unable to join coSpace on Web
Bridge with Firefox
This issue can be seen whether joining as a guest or
signing in to the WebRTC Client as a user and is fixed in
R1.6.12.
7557
Lync calls fail after 30 seconds to
direct federated Lync servers in
1.6.11
Fixed in R1.6.12.
7560
Direct calls from CUCM could
connect but with video and audio
muted.
This could happen with slow connections. This issue is
fixed in R1.6.12.
Resolved in R1.6.11
Reference
Issue
Summary
6482
No indication if the database cluster
certificate has expired
This is now shown in the output of the database
cluster status command and the issue is fixed in
R1.6.11.
6676
Error when setting up the first
database in a cluster
The MMP command database cluster initialize could
return errors under some certificate checking
scenarios. This issue is fixed in R1.6.11.
6913
Unexpected PLIs received from Lync
2013
This could occur when sending H264UCwith more
PLIs being received than can be due to packet loss. A
number of changes were made and this issue is fixed
in R1.6.11 but only in packet pacing delay mode.
Note: This mode should only be enabled under the
guidance of Acano Support and is controlled by the
new Lync Packet Pacing Mode setting on the
Configuration > Call Settings page of the Web Admin
Interface. The options are “default” and “delay”; leave
the setting as default unless instructed otherwise by
Acano Support.
7160
Content sharing being sent as video
between Call Bridges in distributed
calls
Content could be sent as the main video channel on the
distributed links between Call Bridges if content sharing
started before the distributed link was established. This
issue is fixed in R1.6.11.
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7253
Chat on Lync 2013 for iPad/iPhone
incorrectly reported chat message
sender
This could occur in release 1.6.9 and has been fixed in
R1.6.11.
7265
A second Lync call from a user could
be rejected if the first call was not
terminated cleanly
This issue is fixed in R1.6.11.
7302
Large numbers of presence
subscriptions could cause new SIP
calls (including Lync) to fail
This issue is fixed in R1.6.11.
7312
pcap file truncated or the MMP
command shell could become
unresponsive after running pcap
This issue is fixed in R1.6.11.
7345
No presentation across Call Bridge
link when presentation starts before
the link is established
This could occur when a coSpace was instantiated on
one Call Bridge with a participant contributing content,
and a call was made into the same coSpace but on
another Call Bridge subsequently. This issue is fixed in
R1.6.11.
7401
1.6.10 in TIP mode could cause audio
and video issues
This could occur when using the Call Bridge as a
gateway in TIP calls and this issue is fixed in R1.6.11.
7420
Open URL redirection vulnerability
could be exploited to gather
credentials from an unsuspecting
user
This issue was reported as Security Incident 017 and is
fixed in R1.6.11.
7421
XSS vulnerability could result in
execution of javascript to create a
popup with the text xss after clicking
through authentication (successful or
not)
This issue was reported as Security Incident 018 and is
fixed in R1.6.11.
7436
No audio heard after hold/resume
This could occur in Lync calls. However audio could
be sent. This issue is fixed in R1.6.11.
7451
API GET call to the node /participants
can show participants who have
disconnected
This issue is fixed in R1.6.11.
Resolved in R1.6.10
Reference
Issue
Summary
3445
Lync client calls to coSpace with PIN
did not connect reliably. This affected
all Lync clients
When dialing from any Lync client using a Lync server
which had SupportEncryption or RequireEncryption set,
then after you enter the coSpace PIN, the result could be
unreliable. The call could connect perfectly, or audio
and/or video may not have been sent. This issue is fixed
in R1.6.10.
6239
Active participant count was not
correctly displayed in clients when
using distributed Call Bridges
The client only knew about active participants when it
was connected to a Call Bridge hosting some of the
active calls. When all calls were to other Call Bridges it
did not show the meeting as active. This issue is fixed
in R1.6.10.
6409
Multiple TIP endpoints cannot present
simultaneously
When a second TIP endpoint presented before the
first stopped presenting, the first endpoint was not
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stopped from presenting. This issue is fixed in
R1.6.10.
6511
Issues with TIP endpoint hold/resume
behavior
The functionality for both holding and resuming a TIP call
have been changed and call stability improved. This
issue is fixed in R1.6.10.
6567
Frequent resolution changes with
Lync and EX60
When a Lync client and Ex60 dialed into a coSpace, the
resolution transmitted to the EX60 cycled rapidly through
a range of resolutions making the experience
unpleasant. This issue is fixed in R1.6.10.
6655
No 1080p to TIP endpoints
In previous 1.6.x releases 720p30 was the maximum
resolution transmitted, even though TIP endpoints could
send us 1080p30. This issue is fixed in R1.6.10 and
1080p30 will be sent when the call conditions allow it.
6901
Skype integration not working for
some deployments
The far end would hang up the call after approximately 5
seconds. This issue is fixed in R1.6.10.
6947
SIP call connects when dialing an
unknown Lync URI
A SIP endpoint registered to a VCS could dial out to an
non-existent participant and the call could connect and
display the logo. A software loop has been removed and
this issue is fixed in 1.6.10.
7042
Corrupt pcap log file from Acano X
series servers
Log files from 1.6.x builds could be corrupted and would
not open. This issue is fixed in 1.6.10.
7118
Lync calls with video only no audio
When running release 1.6.9 on a public network for direct
Lync federation, a Lync client calling into a coSpace on
could receive no audio decoded but video. A work round
was to perform a hold and resume call from the Lync
client side. This issue is fixed in 1.6.10 and calls connect
with both video and audio.
7132
Call setup issues with Avaya SM
6.1.7
A call could fail with a message “INFO : sip parse: tag too
large”. This issue is fixed in 1.6.10.
7158
Cisco CTS endpoint call drops after a
reInvite
In release 1.6.8 a CTS connecting via an SBC could
cause the Call Bridge to disconnect the call after it sent a
reInvite. This issue is fixed in 1.6.10 and calls are stable.
7185
API allowed invalid LDAP filters
causing Sync failures
When performing LDAP syncs via the API, filters that
were rejected by the Web Admin Interface LDAP Sync
function were allowed, and the sync failed. The API filter
testing has been improved and this issue is fixed in
1.6.10 with an error message being displayed for invalid
filters before the Sync starts.
7251
NTP vulnerabilities
A number of issues were raised as Security alert 014 and
are fixed in 1.6.10.
7252
Roll enforcement security issue
Only MMP account users with admin and appadmin roles
should be able to login to the Web Admin Interface but
this was not enforced. This issue was raised as Security
alert 015 and is fixed in 1.6.10.
Resolved in R1.6.9
Reference
Issue
Summary
6204
All active calls are dropped
Calls being dropped when component connection from
the Call Bridge to the XMPP server dropped because
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invalid XML was sent from the client. This issue was
raised as Security issue 013, and is fixed in R1.6.9.
6525
TIP calls generate inaccurate high
round trip time messages
This issue is fixed in R1.6.9.
6573
Polycom RealPresence Group unit
fails to receive content if joining the
call after the presentation has started.
This issue is fixed in R1.6.9.
6683
3rd party SIP applications display
error message “Unsupported: timer”.
This issue is fixed in R1.6.9 by not including
“Require:Timer” as a header field in SIP request
messages.
6923
Lync AVMCU calls disconnected at
16 minutes
Lync AVMCU calls to SIP endpoints disconnected at 16
minutes. This issue is fixed in R1.6.9.
6964
After a Call Bridge reset, TURN
server may need resetting
Occasionally after a Call Bridge reset, a TURN server
failed to reconnect, and required resetting in order to
reconnect to the Call Bridge. This issue is fixed in R1.6.9.
6972
Slave database fails to sync with
master database in a database
cluster following reconnection after
network failure.
This issue is fixed in R1.6.9. Note: 3-node clusters are
recommended as a minimum for resiliency.
6973
Old DHCP addresses not cleared
from server.
This issue is fixed in R1.6.9. If the DHCP address for a
server changes, the old address is now removed.
7009
Unencrypted calls could join
coSpaces requiring encryption, by
using PIN code.
This issue is fixed in R1.6.9.
7059
Alarm limit and offset not working in
API alarm handling calls
This issue is fixed in R1.6.9.
Resolved in R1.6.8
Release 1.6.5, 1.6.6 and 1.6.7 were not published.
Reference
Issue
Summary
6231
Unable to login to Web Bridge with
delays of approximately 550ms.
This issue is fixed in R1.6.8
6643/6748
Two matching search rules from VCS
to Acano Call Bridge resulted in an
error
This issue is fixed in R1.6.8
6646
Significant amounts of jitter could be
experienced in TIP calls
TIP systems interpret proper spacing of RTP packets
according to transmit bandwidth as jitter. A workaround
has been implemented and this issue is fixed in R1.6.8
6668
Directory Search Locations failed
when tenants were set
This issue is fixed in R1.6.8
6690
Server crash
This issue is fixed in R1.6.8
6725
Previously used backup script no
longer worked
This issue is fixed in R1.6.8 and the new script is
described in the 1.6 Support FAQs.
6728
Connection from Call Bridge to Web
Bridge issues seen when connecting
by WebRTC Client from OS X Safari
This issue is fixed in R1.6.8
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6741
Misleading message displayed for
mismatching key/cert pair
The error message has been changed and this issue is
fixed in R1.6.8
6755
First few seconds of the video stream
get fragmented
With MTU set for an interface when making a call the
MTU determination took a few seconds. This issue is
fixed in R1.6.8.
6758
coSpace activated in error by guestinitiated chat
A coSpace could be activated by a guest if a Lync client
user is a guest in the coSpace. This issue is fixed in
R1.6.8
6763
“syscall error” messages appeared in
log
The harmless message has been removed from the
logs and this issue is fixed in R1.6.8.
6764
Denial of Service by using slave
devices
This issue is fixed in R1.6.8
6767
Out of Memory issue
This issue is fixed in R1.6.8
6819
Acano clients and WebRTC clients
unable to log in
This was caused by a momentary failure of the Call
Bridge to connect to the master coSpace database
during the login process. This issue is fixed in R1.6.8
6858
SSH autocompletes with tab showing
only some possible command options
Autocomplete now shows all possible command options
and this issue is fixed in R1.6.8
Resolved in R1.6.4
Release 1.6.3 was not published.
Reference
Issue
Summary
6662
No single screen TIP video displayed
on multi-screen TIP endpoint
This issue is fixed in R1.6.4.
4564
LDAP sync failed with duplicated
meeting id
This issue is fixed in R1.6.4.
5483
Improvements to the GPU H.264uc
decoder
This issue is fixed in R1.6.4.
6235
Content fails SIP calls through Codian
ISDN GW
Content could fail to stop and cause lip sync issues.
This is fixed in R1.6.4.
6412
Server API in /calls returns TenantID
For Billing Purposes
This is fixed in R1.6.4.
6463
CDR CallStart record didn’t include
TenantID
This is fixed in R1.6.4.
6475
Lync Content failing in Citrix HDX VDI
Setup
When Lync user in this VDI sent Content, it sent it with a
different Conversation ID to that of the main call. This
caused the server to reject the content. This is fixed in
R1.6.4.
6500
Chat history not deleted for a guest
user in a call
The message board didn't clear for a guest user logged
in when another coSpace user deleted messages. This
is fixed in R1.6.4.
6551
Server crash
This was due to a timing issue and is fixed in R1.6.4.
6583
cospaces/<ID>/cospaceusers?filter= not working
All the users were returned irrespective of a filter being
applied in the API call. This issue is fixed in R1.6.4.
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6584
Server crash
This issue is fixed in R1.6.4.
6596
No video to Polycom DMA
We have improved our handling of parameters in the
H.264 advertisement parsing code and this issue is fixed
in R1.6.4.
6628
Issue with API AccessMethods
This issue is fixed in R1.6.4.
Resolved in R1.6.2.2
Reference
Issue
Summary
6574
Security Alert 009 – CVE-2014-3513:
OpenSSL denial of service
vulnerability
New OpenSSL libraries are in this build. OpenSSL has
been 1.0.1i replaced by OpenSSL 1.0.1j and this
incident is closed in R1.6.2.2.
Note:R1.6.2.1 was not published.
Resolved in R1.6.2
Reference
Issue
Summary
4050
Server crash
This could happen if a very rare race condition occurred.
This is fixed in R1.6.2.
6067
Customized IVR image appears
pixelated to Lync 2013 in full-screen
mode
This was an issue with h264uc and is fixed in R1.6.2.
6165
Message of the day isn't synced
across all nodes in an XMPP cluster
The message only appeared when logging in to the node
on which that message was set. From R1.6.2 the
message is sync’ed and displayed on all XMPP servers
in the cluster.
6486
Audio to left and right positions in TIP
calls did not always work
In some calls audio was not transmitted in the left and
right channels to TIP capable endpoints. This is fixed in
R1.6.2.
6495
Audio only participant count not
working across distributed call
instances
The number shown was the count on the local Call
Bridge not across the cluster. This issue is fixed in
R1.6.2.
6501
Video issues with TX9000s
The video shown on the TX9000 screens could freeze for
short intervals and then come back. This issue is fixed in
R1.6.2.
Resolved in R1.6.1
Reference
Issue
Summary
5358
A failure of the database to read
configuration data could lead to a
reboot cycle
Connection attempts are now retried until successful.
6437
WebRTC background colour is lighter
In 1.6.1 the colour of WebRTC background used in call
has been altered to match native clients
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6439
Unable to add license file to Acano
Server (as opposed to virtualized
deployment)
With R1.6 a license file is required for most branding. In
1.6.0 this file could not be uploaded over SFTP to Acano
Servers. This is resolved in 1.6.1
6448
TIP not negotiated with connected
devices
In 1.6.0 it was possible to add a TIP capable device via
the Connect Device functionality. However TIP was not
negotiated to these devices. This has been resolved in
1.6.1
6451
Lync content sharing not working
In some situations attempts to share content from Lync
to R1.6.0 failed. This is resolved in 1.6.1
Resolved in R1.6
Reference
Issue
Summary
1197
A reboot of a module could lead to
reboots of other modules
This only occurred when using custom background
images.This is fixed in R1.6.
2449
Lync Edge clients lose audio/video
after hold/resume
If you dial a Lync 2010 client into a coSpace and
hold/resume the call a few times, it can end up with
either no audio or no video or no media at all after a call
resume. This is resolved in R1.6
6132
Crash when using certain regex
expressions in LDAP synchronizations
This is fixed in R1.6.
6134
Rebooting a node in a clustered
database throws too many errors and
warnings
These messages were normal but could lead readers to
believe there was an issue and therefore they are no
longer displayed. This is fixed in R1.6.
6153
Occasional Lync calls failing
This was caused by a NOTIFY message with zero
length. This is no longer transmitted and therefore is
fixed in R1.6.
6172
Low frame rate/bandwidth used in
calls.
Leakage of custom background image object could lead
to additional load resulting in low frame rate/bandwidth
video being transmitted This is fixed in R1.6.
6185
Alarm required if a database cluster
node is out of sync
This is fixed in R1.6.
6190
Branding profile calls could show
blank logo
This is fixed in R1.6.
6256
Inconsistent errors with API for
required parameters
The message reported when blank strings were passed
for mandatory parameters could vary. This is fixed in
R1.6.
6279
databaseClusterNodeOutOfSync not
shown on webadmin correctly
This is fixed in R1.6.
6313
Lync Front End pool limited to 8
servers
In cases where a customer has a pool of more than 8
FE servers only the first 8 were used. This limit has
been increased to 32 in R1.6
6340
Reboot of server when decoding
corrupted media
A decode of a bad CABAC bitstream could lead to an
infinite loop. This is resolved in R1.6
6352
TIP failure to present from TX9000
Improved negotiation with CUCM has fixed this issue in
R1.6.
6353
No Left / Right audio received from
TX9000
When listening to either a single screen or three-screen
system on the TX9000 audio was only received from the
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middle microphone. The same audio stream is now
played on all three microphones and this issue is fixed in
R1.6.
6375
Module crash in H.264 call.
The presence of an invalid temporal layer in the H.264
bitstream could lead to a memory corruption which
would result in a later crash. This issue is fixed in R1.6
6378
No video in some SIP calls
This only was present when TIP was enabled, and was
caused by stalled TIP negotiation. This issue is fixed in
R1.6
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5 Known Limitations
If you encounter any of the following issues, contact support@acano.com because we are likely
to have test builds to send you with fixes for many or all of them by the time you find them.
Reference
Issue
Summary
4132
Prevent logging in to the Web
Admin Interface
By going to the Web Admin Interface login page, clicking OK to
login and then holding down F5, all the sessions will be “used”
without even logging in. This prevents anyone else from logging
in until those sessions expire. This issue will be addressed in a
future release.
4838
Call Bridge Crash
A stress crash can occur in R1.2 Beta 22/04/2012 when using
the WebRTC client.
5228
No DNS failover for AD sync
Although the initial problem of the Call Bridge not falling back to
a second AD server address after the LDAP connection to the
first failed has been fixed in R1.2, there remains the issue that
trying to connect to a non-existent/non-responding remote
address can take a long time to time out.
6487
Messages go missing after
XMPP cluster node failure
Some messages may not be displayed correctly when using
XMPP clustering. Restarting the callbridge correctly shows the
messages again.
6546
Layout issue in distributed
meetings
Participants can share a pane and also can appear more than
once. Changing the layout does not fix the issue.
7265
Rejected call because of a
loop detection
This issue can occur if the user is already connected using
another client
7372
Issues with video from Firefox
WebRTC client (34.0.5)
You may have experienced lack of video or poor quality video
when calling between the WebRTC client and SIP endpoints.
Audio was unaffected.
6758
coSpace can be activated
with Lync chat user using a
guest access method
In R1.6.12 and earlier is was sometimes possible for a coSpace
to become activated with Lync chat user using a guest access
method rather than a host method.
7675
Occasional video corruption in
WebRTC client using Firefox
35.0.1
Occasional video corruption in the direction of the client to the
server using WebRTC client on Firefox 35.0.1.
7804
Callbridge crash placing Lync
or Skype call
Under certain circumstances Callbridge can crash when placing
a Lync or Skype call, this is a rare occurrence seen under stress
testing and will be fixed in the next maintenance release.
© 2015 Acano (UK) Ltd. All rights reserved.
This document is provided for information purposes only and its contents are subject to change without notice. This
document may not be reproduced or transmitted in any form or by any means, for any purpose other than the
recipient’s personal use, without our prior written permission.
Acano and coSpace are trademarks of Acano. Other names may be trademarks of their respective owners.
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