Cisco TelePresence Administrator's Manual page 430

Reference material
Zones Zone [1..1000] Neighbor SIP Authentication Trust Mode: <On/Off>
Controls whether authenticated SIP messages (ones containing a P-Asserted-Identity header) from this zone are
trusted.
On: messages are trusted without further challenge.
Off: messages are challenged for authentication.
Default: Off
Example: xConfiguration Zones Zone 3 Neighbor SIP Authentication Trust Mode: On
Zones Zone [1..1000] Neighbor SIP B2BUA Service Identifier: <0..64>
The identifier that represents an instance of a local SIP Back-to-Back User Agent service.
Example: xConfiguration Zones Zone 1 Neighbor SIP B2BUA Service Identifier: 1
Zones Zone [1..1000] Neighbor SIP ClassFiveResponseLiveness: <Yes/No>
Specified whether Class 5 SIP responses from neighbor peers result in the zone being considered alive for use.
Default: Yes
Example: xConfiguration Zones Zone 1 Neighbor SIP ClassFiveResponseLiveness: Yes
Zones Zone [1..1000] Neighbor SIP Duo Video Filter Mode: <On/Off>
Determines whether INVITE requests sent to this zone filter out Duo Video. This option may be required to
enable interoperability with SIP devices that do not support Duo Video.
On: the second video line in any outgoing INVITE request is removed.
Off: INVITE requests are not modified.
Default: Off
Example: xConfiguration Zones Zone 1 Neighbor SIP Duo Video Filter Mode: Off
Zones Zone [1..1000] Neighbor SIP Encryption Mode: <Auto/Microsoft/Off>
Determines how the VCS handles encrypted SIP calls on this zone.
Auto: SIP calls are encrypted if a secure SIP transport (TLS) is used.
Microsoft: SIP calls are encrypted using MS-SRTP.
Off: SIP calls are never encrypted.
Default: Auto
Example: xConfiguration Zones Zone 3 Neighbor SIP Encryption Mode: Auto
Zones Zone [1..1000] Neighbor SIP MIME Strip Mode: <On/Off>
Controls whether multipart MIME stripping is performed on requests from this zone. This must be set to On for
connections to a Microsoft Office Communications Server 2007.
Default: Off
Example: xConfiguration Zones Zone 3 Neighbor SIP MIME Strip Mode: Off
Cisco VCS Administrator Guide (X7.1) Page 430 of 479