Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

UC520, 3911 SIP phones and DTMF

Good evening guys,

I have a strange problem with an UC520 and 3911 sip phones. I cannot send DTMF from the phones to an external FXO or even to the integrated CUE. I tried multiple configurations and the only partial success I had was with dtmf-relay rtp-nte under voice register pool but I'm getting double digits to the FXO and also to CUE. I also did a debug ccsip events and I noticed that even with dtmf-relay sip-notify under voice register pool I don't get the cc_events generated when pressing a key. Attached is the current config of the box. Thanks in advance for any help.

Alex.

190
Views
0
Helpful
0
Replies