Cisco TelePresence Administrator's Manual page 431

Reference material
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
Zones Zone [1..1000] Neighbor SIP ProxyRequire Strip List: <S: 0,255>
A comma separated list of option tags to search for and remove from Proxy-Require headers in SIP requests
received from this zone. By default, no option tags are specified.
Example: xConfiguration Zones Zone 3 Neighbor SIP ProxyRequire Strip List:
"com.example.something,com.example.somethingelse"
Zones Zone [1..1000] Neighbor SIP Record Route Address Type: <IP/Hostname>
Controls whether the VCS uses its IP address or host name in the record-route or path headers of outgoing SIP
requests to this zone.
Note: setting this value to Hostname also requires a valid DNS local host name to be configured on the VCS.
Default: IP
Example: xConfiguration Zones Zone [1..1000] Neighbor SIP Record Route Address Type: IP
Zones Zone [1..1000] Neighbor SIP SDP Attribute Line Limit Length: <80..65535>
If SIP SDP attribute line limit mode is set to On, sets the maximum line length of a=fmtp SDP lines.
Default: 130
Example: xConfiguration Zones Zone 3 Neighbor SIP SDP Attribute Line Limit Length: 130
Cisco VCS Administrator Guide (X7.1) Page 431 of 479