Cisco Cisco TelePresence Video Communication Server Expressway
System checks
System checks
Zone status
Check on both Cisco VCS Control and Cisco VCS Expressway that the traversal zone is Active on
the Zones status page (Status > Zones).
the Zones status page (Status > Zones).
The status of the zone can also be seen on the Zones configuration page (VCS configuration >
Zone).
Zone).
If the traversal zone is not active:
Review the traversal zone configuration.
Confirm that the relevant ports are enabled for outbound routing on the NAT and firewall devices
located between the Cisco VCS Control and Cisco VCS Expressway (see Appendix 3 – NAT &
firewall configuration).
located between the Cisco VCS Control and Cisco VCS Expressway (see Appendix 3 – NAT &
firewall configuration).
Confirm that the authentication and client authentication usernames (and passwords) are
configured correctly (and match) on Cisco VCS Control and Cisco VCS Expressway.
configured correctly (and match) on Cisco VCS Control and Cisco VCS Expressway.
Registration status
Check that all endpoints which are expected to be registered are actually registered to the relevant
Cisco VCS, and that they are registering the expected aliases. All successfully registered endpoints
will be listed in the Registrations by device status page (Status > Registrations > By device).
Cisco VCS, and that they are registering the expected aliases. All successfully registered endpoints
will be listed in the Registrations by device status page (Status > Registrations > By device).
If the expected endpoints are not registered:
review the endpoint’s registration configuration
is the endpoint configured to register with the Cisco VCS Expressway if located on the
external network / internet?
external network / internet?
is the endpoint configured to register with the Cisco VCS Control if located on the internal
network?
network?
review the SIP domain configuration (Step 5)
review any registration restriction configuration applied to the Cisco VCS (Optional Step 15)
Call signaling
If calls do not complete, despite the endpoints being successfully registered to a Cisco VCS:
review the Cisco VCS Control Search rule configuration
review the Cisco VCS Expressway Search rule configuration
check the search history page for search attempts and failures (Status > Search history)
check the event log for call connection failure reasons (Status > Logs > Event Log)
Cisco VCS Deployment Guide: Basic Cisco VCS configuration – Cisco VCS Control with
Cisco VCS Expressway
Cisco VCS Expressway
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