10-16-2018 03:41 AM - edited 03-17-2019 01:35 PM
Hi Experts,
CUCM: 11.5 SU4
GW: ISR 4331/bootflash:isr4300-universalk9.16.06.04.SPA.bin
Phone: 7841/sip78xx.12-1-1SR1-4
I am having issues with my DTMF on SIP phones. We are using MGCP.
On SCCP phones, DTMF is working. We already tried changing the DTMF relay options on Call Manager, reset MGCP service and tested, but still not working.
Any ideas please? Thank you.
Solved! Go to Solution.
10-17-2018 10:45 AM
Hi,
some time ago we faced the same problem (after a cucm upgrade to 11.5(1)SU4).
we had to change our mgcp config on the gateway:
remove the follwing commands:
no mgcp rtp payload-type g726r16 static
no mgcp dtmf-relay voip codec all mode out-of-band
add the followong commands:
mgcp package-capability dtmf-package
mgcp rtp payload-type nte 101
mgcp dtmf-relay voip codec all mode nse
maybe it will help.
/Robert
10-16-2018 04:00 AM
10-16-2018 04:03 AM
10-16-2018 09:36 PM
10-16-2018 10:34 PM
10-16-2018 10:38 PM
10-17-2018 05:09 AM
10-17-2018 10:45 AM
Hi,
some time ago we faced the same problem (after a cucm upgrade to 11.5(1)SU4).
we had to change our mgcp config on the gateway:
remove the follwing commands:
no mgcp rtp payload-type g726r16 static
no mgcp dtmf-relay voip codec all mode out-of-band
add the followong commands:
mgcp package-capability dtmf-package
mgcp rtp payload-type nte 101
mgcp dtmf-relay voip codec all mode nse
maybe it will help.
/Robert
10-29-2018 08:30 PM
10-30-2018 03:20 AM
Hi Flo,
we had a TAC Case open. But i can ot remember if it was a bug or not. Personally for me it is a Bug.
/Robert
10-05-2019 01:55 AM
10-15-2019 07:27 AM
Another beneficiary of this tip!
Thanks for this,
Baktha
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