Cisco TelePresence Administrator's Manual page 447

Reference material
Command reference — xConfiguration
SIP Routes Route [1..20] Transport: <UDP/TCP/TLS>
Determines which transport type will be used for SIP messages forwarded along this route. Default: TCP. Note: this command is
intended for developer use only.
Example: xConfiguration SIP Routes Route 1 Transport: TCP
SIP Session Refresh Minimum: <90..7200>
The minimum value the VCS will negotiate for the session refresh interval for SIP calls. For more information see the definition of Min-
SE header in RFC 4028. Default: 500.
Example: xConfiguration SIP Session Refresh Minimum: 500
SIP Session Refresh Value: <90..7200>
The maximum time allowed between session refresh requests for SIP calls. For more information see the definition of Session-
Expires in RFC 4028. Default: 1800.
Example: xConfiguration SIP Session Refresh Value: 1800
SIP TCP Mode: <On/Off>
Determines whether incoming and outgoing SIP calls using the TCP protocol will be allowed. Default: On.
Example: xConfiguration SIP TCP Mode: On
SIP TCP Outbound Port End: <1024..65534>
Specifies the upper port in the range to be used by outbound TCP/TLS SIP connections. Default: 29999.
Example: xConfiguration SIP TCP Outbound Port End: 29999
SIP TCP Outbound Port Start: <1024..65534>
Specifies the lower port in the range to be used by outbound TCP/TLS SIP connections. Default: 25000.
Example: xConfiguration SIP TCP Outbound Port Start: 25000
SIP TCP Port: <1024..65534>
Specifies the listening port for incoming SIP TCP calls. Default: 5060.
Example: xConfiguration SIP TCP Port: 5060
SIP TLS Certificate Revocation Checking CRL Mode: <On/Off>
Controls whether Certificate Revocation Lists (CRLs) are used to perform certificate revocation checking. CRLs can be loaded
manually onto the VCS, downloaded automatically from pre-configured URIs, or downloaded automatically from a CRL distribution
point (CDP) URI contained in the X.509 certificate. Default: On.
Example: xConfiguration SIP TLS Certificate Revocation Checking CRL Mode: On
SIP TLS Certificate Revocation Checking CRL Network Fetch Mode: <On/Off>
Controls whether the download of CRLs from the CDP URIs contained in X.509 certificates is allowed. Default: On.
Example: xConfiguration SIP TLS Certificate Revocation Checking CRL Network Fetch Mode: On
SIP TLS Certificate Revocation Checking Mode: <On/Off>
Controls whether revocation checking is performed for certificates exchanged during SIP TLS connection establishment. Default:
Off.
Example: xConfiguration SIP TLS Certificate Revocation Checking Mode: Off
SIP TLS Certificate Revocation Checking OCSP Mode: <On/Off>
Controls whether the Online Certificate Status Protocol (OCSP) may be used to perform certificate revocation checking. To use
OCSP, the X.509 certificate to be checked must contain an OCSP responder URI. Default: On.
Example: xConfiguration SIP TLS Certificate Revocation Checking OCSP Mode: On
Cisco VCS Administrator Guide (X8.1.1) Page 447 of 507