Hello,
I had a customer who wanted to suppress the ringback tone today.
I first thought about making the CUCM and the gateway cutting the audio through (which did not work).
After thinking I came out with the following (the commands below are the ones I ran):
enable
test voice tone c1 ring_back 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
conf t
voice-port (port number)
shut
cptone C1
no sh
I tested this in my lab router as well as the customers equipment and it worked just fine.
