Cisco TelePresence Administrator's Manual page 448

Reference material
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
Zones Zone [1..1000] Neighbor SIP Media Encryption Mode: <Off/On/BestEffort/Auto>
On: All media must be encrypted.
Off: All media must be unencrypted.
BestEffort: Use encryption if available otherwise fallback to unencrypted media.
Auto: No media encryption policy is applied.
Default: Auto
Example: xConfiguration Zones Zone 3 Neighbor SIP Media Encryption Mode: Auto
Zones Zone [1..1000] Neighbor SIP MediaRouting Mode: <Auto/Signaled/Latching>
Specifies how the VCS handles the media for calls to and from this neighbor, and where it will forward the media
destined for this neighbor.
Signaled: the media is always taken for calls to and from this neighbor. It will be forwarded as signaled in the
SDP received from this neighbor.
Latching: the media is always taken for calls to and from this neighbor. It will be forwarded to the IP address and
port from which media from this neighbor is received.
Auto: media is only taken if the call is a traversal call. If this neighbor is behind a NAT the VCS will forward the
media to the IP address and port from which media from this zone is received (latching). Otherwise it will forward
the media to the IP address and port signaled in the SDP (signaled).
Default: Auto.
Example: xConfiguration Zones Zone 3 Neighbor SIP MediaRouting Mode: Auto
Zones Zone [1..1000] Neighbor SIP Poison Mode: <On/Off>
Determines whether SIP requests sent out to this zone will be "poisoned" such that if they are received by the
local VCS again they will be rejected.
On: SIP requests sent out via this zone that are received again by this VCS will be rejected.
Off: SIP requests sent out via this zone that are received by this VCS again will be processed as normal.
Default: Off
Example: xConfiguration Zones Zone 3 Neighbor SIP Poison Mode: Off
Zones Zone [1..1000] Neighbor SIP Port: <1024..65534>
Specifies the port on the neighbor to be used for SIP calls to and from this VCS.
Default: 5061
Example: xConfiguration Zones Zone 3 Neighbor SIP Port: 5061
Cisco VCS Administrator Guide (X7.2) Page 448 of 498