Also, make sure that the CAS protocol is the same on both ends of the link.
Verify that the CAS link is up
Make sure the CAS link is up. Use the show module configuration all command to
check the state of the link for the CAS port.
Figure 67: show module configuration all sample output
Perform call trace
For further CAS troubleshooting, you can also perform a call trace using the debug voice
cc cas command. The following figures show a sample trace for a successful call using wink
start.
Common problems and solutions
Troubleshooting August 2013 331
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