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Community Member

no DTMF tones when I dial digits out to PSTN

no DTMF tones when I dial digits out to PSTN. I get digit tones when dialing IP phone to IP phone though. Just not out to the PSTN. This system is in Switzerland, so Swiss Telecom. dial-peers below. What am I missing?

dial-peer voice 10 pots

incoming called-number .

direct-inward-dial

forward-digits all

!

dial-peer voice 11 voip

incoming called-number .T

dtmf-relay h245-alphanumeric

codec g711ulaw

no vad

!

dial-peer voice 1000 pots

description <==10 Digit Local Dialing==>

preference 1

destination-pattern 0[1-9]........

progress_ind setup enable 3

progress_ind alert enable 8

progress_ind progress enable 8

progress_ind connect enable 8

direct-inward-dial

port 1/0/0:15

forward-digits all

!

dial-peer voice 1001 pots

description <==INT Digit Local Dialing==>

preference 1

destination-pattern 00[2-9]%

progress_ind setup enable 3

progress_ind alert enable 8

progress_ind progress enable 8

direct-inward-dial

port 1/0/0:15

forward-digits all

I can't seem to find what else to add.

1 ACCEPTED SOLUTION

Accepted Solutions
Green

Re: no DTMF tones when I dial digits out to PSTN

could u please check which is your incoming voip-dial-peer when dialing to pstn, per config it may be 11.

In that one add both 245 alphanumeric and h245-signal

CUCM understands incoming h245 alpha and sends h245 signals for dtmf

2 REPLIES
Green

Re: no DTMF tones when I dial digits out to PSTN

could u please check which is your incoming voip-dial-peer when dialing to pstn, per config it may be 11.

In that one add both 245 alphanumeric and h245-signal

CUCM understands incoming h245 alpha and sends h245 signals for dtmf

Community Member

Re: no DTMF tones when I dial digits out to PSTN

One of thing, our 7921 wireless phones have no dtmf tone while dialing. Is this a default characteristic?

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