Cisco TelePresence Administrator's Manual page 436

Reference material
Zones Zone [1..1000] TraversalServer Registrations: <Allow/Deny>
Controls whether proxied SIP registrations routed through this zone are accepted.
Default: Allow
Example: xConfiguration Zones Zone 5 TraversalServer Registrations: Allow
Zones Zone [1..1000] TraversalServer 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 5 TraversalServer SIP Poison Mode: Off
Zones Zone [1..1000] TraversalServer SIP Port: <1024..65534>
Specifies the port on the VCS being used for SIP firewall traversal from this traversal client.
Default: 7001, incrementing by 1 for each new zone.
Example: xConfiguration Zones Zone 5 TraversalServer SIP Port: 5061
Zones Zone [1..1000] TraversalServer SIP Protocol: <Assent/TURN/ICE>
Determines which firewall traversal protocol will be used for SIP calls to and from the traversal client. Note: the
same protocol must be set on the client for calls to and from this traversal server.
Default: Assent
Example: xConfiguration Zones Zone 1 TraversalServer SIP Protocol: Assent
Zones Zone [1..1000] TraversalServer SIP TLS Verify Mode: <On/Off>
Controls X.509 certificate checking and mutual authentication between this VCS and the traversal client. If
enabled, a TLS verify subject name must be specified.
Default: Off
Example: xConfiguration Zones Zone 5 TraversalServer SIP TLS Verify Mode: On
Zones Zone [1..1000] TraversalServer SIP TLS Verify Subject Name: <S: 0,128>
The certificate holder's name to look for in the traversal client's X.509 certificate (must be in either the Subject
Common Name or the Subject Alternative Name attributes).
Example: xConfiguration Zones Zone 5 TraversalServer SIP TLS Verify Subject Name:
"myclientname"
Zones Zone [1..1000] TraversalServer SIP Transport: <TCP/TLS>
Determines which of the two transport types will be used for SIP calls between the traversal client and VCS.
Default: TLS
Example: xConfiguration Zones Zone 5 TraversalServer SIP Transport: TLS
Zones Zone [1..1000] TraversalServer TCPProbe KeepAliveInterval: <1..65534>
Sets the interval (in seconds) with which the traversal client will send a TCP probe to the VCS once a call is
established, in order to keep the firewall's NAT bindings open.
Default: 20
Example: xConfiguration Zones Zone 5 TraversalServer TCPProbe KeepAliveInterval: 20
Cisco VCS Administrator Guide (X7.1) Page 436 of 479