Cisco TelePresence Administrator's Manual page 255

Field Description
Enable Controls whether calls may be routed through a
transcoders for transcoder.
this B2BUA
Port on B2BUA The IP port used on the B2BUA for
for transcoder communicating with the transcoders. Default is
communications 65080.
Use transcoder Specifies whether the transcoder policy rules
policy rules are used to control access to the transcoders.
Default is No.
TURN section:
Offer TURN Controls whether the B2BUA offers TURN
services services. Default is No.
TURN server The IP address of the TURN server to offer when
address establishing ICE calls (with a Microsoft OCS/Lync
Edge server).
TURN server The listening port on the TURN server. Default is
port 3478.
TURN services The username to access the TURN server.
username
TURN services The password to access the TURN server.
password
Advanced settings: you should only modify the advanced settings on the advice of Cisco customer support.
Encryption Controls how the B2BUA handles encrypted
and unencrypted call legs.
Required: both legs of the call must be
encrypted.
Auto: encrypted and unencrypted combinations
are supported.
The default is Auto.
B2BUA media The port range used by the B2BUA for handling
port range media. Default range is 56000–57000.
start/end
Cisco VCS Administrator Guide (X7.2)
Usage tips
You should enable this option if you need
to use a transcoder such as the Cisco
TelePresence Advanced Media Gateway
to transcode between standard codecs
(such as H.264) and Microsoft RT Video
and RT Audio.
All transcoder communications are carried
out over TLS.
If Enable transcoders for this B2BUA is
Yes, then all calls are routed via the
transcoders by default.
If transcoder resources need to be
reserved for specific types of calls, you
can use this option to limit the types of
calls that are routed via the transcoders.
Set this option to Yes and then define the
required policy rules.
This is recommended for calls traversing a
Microsoft OCS/Lync Edge server.
The TURN server must be RFC 5245
compliant, for example a VCS Expressway
TURN server.
A call via the B2BUA comprises two legs:
one leg from the B2BUA to a standard
video endpoint, and one leg from the
B2BUA to the MOC/Lync client. Either leg
of the call could be encrypted or
unencrypted.
A setting of Auto means that the call can
be established for any of the encrypted
and unencrypted call leg combinations.
Thus, one leg of the call could be
encrypted while the other leg could be
unencrypted.
Ensure that the port range does not
overlap with other port ranges used by this
VCS or this VCS's TURN server.
Applications
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