Cisco TelePresence Administrator's Manual page 451

Reference material
Zones Zone [1..1000] TraversalClient Authentication Password: <S: 0,215>
The password used by the VCS when connecting to the traversal server. The maximum plaintext length is 128
characters, which is then encrypted.
Example: xConfiguration Zones Zone 4 TraversalClient Authentication Password:
"password123"
Zones Zone [1..1000] TraversalClient Authentication UserName: <S: 0,128>
The user name used by the VCS when connecting to the traversal server.
Example: xConfiguration Zones Zone 4 TraversalClient Authentication UserName:
"clientname"
Zones Zone [1..1000] TraversalClient H323 Port: <1024..65534>
Specifies the port on the traversal server to be used for H.323 firewall traversal calls from this VCS. If the traversal
server is a VCS Expressway, this must be the port number that has been configured on the VCS Expressway's
traversal server zone associated with this VCS.
Example: xConfiguration Zones Zone 4 TraversalClient H323 Port: 2777
Zones Zone [1..1000] TraversalClient H323 Protocol: <Assent/H46018>
Determines which of the two firewall traversal protocols will be used for calls to and from the traversal server.
Note: the same protocol must be set on the server for calls to and from this traversal client.
Default: Assent
Example: xConfiguration Zones Zone 4 TraversalClient H323 Protocol: Assent
Zones Zone [1..1000] TraversalClient Peer [1..6] Address: <S:0,128>
Specifies the IP address or Fully Qualified Domain Name (FQDN) of the traversal server. If the traversal server is
a VCS Expressway cluster, this will be one of the peers in that cluster.
Example: xConfiguration Zones Zone 4 TraversalClient Peer 1 Address: "10.192.168.1"
Zones Zone [1..1000] TraversalClient Registrations: <Allow/Deny>
Controls whether proxied SIP registrations routed through this zone are accepted.
Default: Allow
Example: xConfiguration Zones Zone 4 TraversalClient Registrations: Allow
Zones Zone [1..1000] TraversalClient RetryInterval: <1..65534>
Specifies the interval (in seconds) with which a failed attempt to establish a connection to the traversal server
should be retried.
Default: 120
Example: xConfiguration Zones Zone 4 TraversalClient RetryInterval: 120
Zones Zone [1..1000] TraversalClient 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 4 TraversalClient SIP Media Encryption Mode: Auto
Cisco VCS Administrator Guide (X7.2) Page 451 of 498