Configuring B2Bua Transcoders - Cisco TelePresence Administrator's Manual

Applications
Field Description
Pattern type The way in which the Pattern string must match
either the source or destination alias of the call.
Exact: the entire string must exactly match the
alias character for character.
Prefix: the string must appear at the beginning of
the alias.
Suffix: the string must appear at the end of the
alias.
Regex: treats the string as a
Pattern string The pattern against which the alias is compared.
Action The action to take if the source or destination
alias of the call matches this policy rule.
Allow: the call can connect via the transcoder.
Deny: the call can connect but it will not use
transcoder resources.
State Indicates if the rule is enabled or not.

Configuring B2BUA transcoders

Transcoders are used to convert digital media from one format to another. The only transcoder currently
supported by the Lync B2BUA is the Cisco TelePresence Advanced Media Gateway (Cisco AM GW).
The B2BUA can use the Cisco AM GW to transcode between standard codecs (such as H.264) and
Microsoft RT Video and RT Audio to allow high definition calls between Microsoft Lync clients and Cisco
endpoints.
The Transcoders page (Applications > B2BUA > Microsoft Lync >
set of transcoders available to the B2BUA.
Multiple transcoders can be configured for load balancing purposes; the B2BUA automatically manages
n
which transcoder to use.
The status of each transcoder is shown, this includes:
n
whether the transcoder is accessible or not
l
the number of available connections; note that Cisco AM GW calls require 2 connections per call
l
You can use the B2BUA configuration page
n
whether specific policy rules
Note that the B2BUA can operate without any associated transcoders (calls will still connect but will not be
transcoded).
The configurable options are:
Field Description
Name An optional free-form description of the
transcoder.
Cisco VCS Administrator Guide (X8.1.1)
regular expression.
to control whether the B2BUA uses transcoder resources and
are used to filter which calls are allowed to be routed through the transcoders.
B2BUA (back-to-back user agent) overview
Usage tips
You can test whether a pattern matches a
particular alias and is transformed in the
expected way by using the
tool (Maintenance > Tools > Check
pattern).
Use this setting to test configuration
changes, or to temporarily disable certain
rules. Any disabled rules still appear in the
rules list but are ignored.
Transcoders) is used to manage the
Usage tips
Check pattern
Page 249 of 507