Sip phones outbound dtmf problem on ccme

[pedroferreras]

Hi, i'm running Callmanger express ios version c2900-universalk9-mz-SPA.152-2.T1.bin;  i have one 7962 (sccp) phone and 5 3905 (sip) phones; the router is connected to pstn trough 4 FXO ports. The problem is that i can  not pass outbound DTMF to the pstn when calling from 3905 phones, everything is working fine when calling from 7962. The frimware verison of 3905 phones is CP3905.9-2-1-0.

Thank you.

[Ayodeji Okanlawon]

Have you configured the dtmf relay on the phone..

voice register pool x

dtmf-relay rtp-nte

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[pedroferreras]

Yes, but remember i'm not using ip trunks (voip dial-peer) i'm using pots over FXO ports.

[adolfocgx]

Hi pedro , i have a lot of troubles with this cheap phones, and I have FXO too,  I have the same dtmf , check my config its working now..

voice register pool  13

id mac 5C50.1545.99AD

session-transport tcp

type 3905

number 1 dn 5

dialplan 1

dtmf-relay rtp-nte

username 8565 password 8565

codec g711ulaw

no vad

after-hour exempt

I have this dial Plan as well..

voice register dialplan 1

type 7940-7960-others

pattern 1 9........

pattern 2 9044..........

pattern 3 9045..........

pattern 4 901..........

pattern 5 8...

pattern 6 1..

and every time you make a change you have to run this commando,

create profile > on voice global register and reload the phone.

I have other issues with this phones.. one is one way audio and the work arround is to press the speaker button twice and the audio comes magically!!, this is crazy!!

[pedroferreras]

Hi, the problem was a firmware issue, Cisco TAC send me the 9.2.(2) ES1 version and now dtmf works well.