Testing the Telephony Integration
Go to Telephony Integrations and select Phone System on Cisco Unity Connection Administration.
Select the Phone System from the list for which configuration needs to be tested.
In the Related Links drop-down list, select Check Telephony Configuration and select Go to confirm the phone system integration settings.
If the test is not successful, the Task Execution Results displays one or more messages with troubleshooting steps. After correcting the problems, test the connection again.
In the Task Execution Results window, select Close.