Cisco Cisco Expressway Release Notes
Changes in X8.1.1
Cisco TelePresence Cisco Expressway Software Release Notes (X8.2)
Page 3 of 16
The xconfig and xstatus files are taken at the start of the logging process.
SIP REFER support
The Expressway B2BUA has SIP REFER message support. A SIP REFER mode advanced zone
configuration parameter has been introduced.
configuration parameter has been introduced.
By default it will forward REFER messages, but it can be configured to terminate REFER messages and use
the B2BUA to perform the transfer (typically to a bridge) on behalf of the far endpoint.
the B2BUA to perform the transfer (typically to a bridge) on behalf of the far endpoint.
Other enhancements and usability improvements
n
The
HTTP server allow list
page (used for mobile and remote access clients to access additional web
services inside the enterprise) now displays any automatically configured entries.
n
You can configure the timeout period for TLS socket handshake (
Configuration > Protocols > SIP
).
n
The TURN relay status page (
Status > TURN relay usage
) now provides a summary list of all the clients
that are connected to the TURN server. From there you can select a specific client to see all of the relays
and ports that it is using.
and ports that it is using.
n
Ability to copy search rules. You can use the Clone action on the search rules listing page (
Configuration
> Dial plan > Search rules
) to copy and then edit an existing search rule.
n
The DNS lookup tool allows you to select which DNS servers (from the configured set of default DNS
servers) to use for the lookup.
servers) to use for the lookup.
n
The automated protection service now supports IPv6 addresses.
Changed functionality
Access to the systemunit.xml file is now protected. Only authenticated Expressway administrator accounts
can access the file. This may affect the discovery of Expressway by Cisco TMS.
can access the file. This may affect the discovery of Expressway by Cisco TMS.
Call status and call history now indicates components routed through the B2BUA for encryption or ICE
support with a component type of 'B2BUA' (formerly 'Encryption B2BUA').
support with a component type of 'B2BUA' (formerly 'Encryption B2BUA').
Note: The combination of having static NAT mode on and having the B2BUA engaged to do media
encryption/decryption can cause the firewall outside the Expressway-E to mistrust packets originating from
the Expressway-E. You can work around this by configuring the firewall to allow NAT reflection. If your
firewall cannot allow this, you must configure the traversal path such that the B2BUA on the Expressway-E
is not engaged.
encryption/decryption can cause the firewall outside the Expressway-E to mistrust packets originating from
the Expressway-E. You can work around this by configuring the firewall to allow NAT reflection. If your
firewall cannot allow this, you must configure the traversal path such that the B2BUA on the Expressway-E
is not engaged.
Changes in X8.1.1
Unified Communications: mobile and remote access
Cisco Unified Communications mobile and remote access is a core part of the Cisco Collaboration Edge
Architecture. It allows endpoints such as Cisco Jabber to have their registration, call control, provisioning,
messaging and presence services provided by Cisco Unified Communications Manager (Unified CM) when
the endpoint is not within the enterprise network. The Expressway provides secure firewall traversal and line-
side support for Unified CM registrations.
Architecture. It allows endpoints such as Cisco Jabber to have their registration, call control, provisioning,
messaging and presence services provided by Cisco Unified Communications Manager (Unified CM) when
the endpoint is not within the enterprise network. The Expressway provides secure firewall traversal and line-
side support for Unified CM registrations.