Cisco TelePresence Administrator's Manual page 461

Reference material
Command reference — xConfiguration
Zones Zone [1..1000] Neighbor Interworking SIP EmptyInviteAllowed: <On/Off>
Determines whether the VCS will generate a SIP INVITE message with no SDP to send to this zone. INVITEs with no SDP mean that
the destination device is asked to initiate the codec selection, and are used when the call has been interworked locally from H.323.
Default: On .
On: SIP INVITEs with no SDP will be generated and sent to this neighbor.
Off: SIP INVITEs will be generated and a pre-configured SDP will be inserted before the INVITEs are sent to this neighbor.
Example: xConfiguration Zones Zone 3 Neighbor Interworking SIP EmptyInviteAllowed: On
Zones Zone [1..1000] Neighbor Interworking SIP Encryption EncryptSRTCP: <Yes/No>
Controls if the VCS offers encrypted SRTCP in calls to this zone. The VCS will send an INFO request. Default: No.
Example: xConfiguration Zones Zone 3 Neighbor Interworking SIP Encryption EncryptSRTCP: No
Zones Zone [1..1000] Neighbor Interworking SIP Search Strategy: <Options/Info>
Determines how the VCS will search for SIP endpoints when interworking an H.323 call. Default: Options .
Options: the VCS will send an OPTIONS request.
Info: the VCS will send an INFO request.
Example: xConfiguration Zones Zone 3 Neighbor Interworking SIP Search Strategy: Options
Zones Zone [1..1000] Neighbor Interworking SIP Video DefaultBitrate: <64..65535>
Specifies which video bit rate to use when empty INVITEs are not allowed. Default: 384 .
Example: xConfiguration Zones Zone 3 Neighbor Interworking SIP Video DefaultBitrate: 384
Zones Zone [1..1000] Neighbor Interworking SIP Video DefaultCodec: <None/H261/H263/H263p/H263pp/H264>
Specifies which video codec to use when empty INVITEs are not allowed. Default: H263 .
Example: xConfiguration Zones Zone 3 Neighbor Interworking SIP Video DefaultCodec: H263
Zones Zone [1..1000] Neighbor Interworking SIP Video DefaultResolution:
<None/QCIF/CIF/4CIF/SIF/4SIF/VGA/SVGA/XGA>
Specifies which video resolution to use when empty INVITEs are not allowed. Default: CIF .
Example: xConfiguration Zones Zone 3 Neighbor Interworking SIP Video DefaultResolution: CIF
Zones Zone [1..1000] Neighbor Monitor: <Yes/No>
Specifies whether the zone monitors the aliveness of its neighbor peers. H323 LRQs and/or SIP OPTIONS will be periodically sent to
the peers. If any peer fails to respond, that peer will be marked as inactive. If no peer manages to respond the zone will be marked as
inactive. Default: Yes.
Example: xConfiguration Zones Zone 3 Neighbor Monitor: Yes
Zones Zone [1..1000] Neighbor Peer [1..6] Address: <S:0,128>
Specifies the IP address or Fully Qualified Domain Name (FQDN) of the neighbor. If the neighbor zone is a VCS cluster, this will be
one of the peers in that cluster.
Example: xConfiguration Zones Zone 3 Neighbor Peer 1 Address: "192.44.0.18"
Zones Zone [1..1000] Neighbor Registrations: <Allow/Deny>
Controls whether proxied SIP registrations routed through this zone are accepted. Default: Allow .
Example: xConfiguration Zones Zone 3 Neighbor Registrations: Allow
Zones Zone [1..1000] Neighbor SIP Authentication Trust Mode: <On/Off>
Controls if authenticated SIP messages (ones containing a P-Asserted-Identity header) from this zone are trusted. Default: Off .
On: messages are trusted without further challenge.
Off: messages are challenged for authentication.
Example: xConfiguration Zones Zone 3 Neighbor SIP Authentication Trust Mode: On
Cisco VCS Administrator Guide (X8.1.1) Page 461 of 507