SIP Inband or out of band DTMF 1

[Vidmine]

I am running ver 6.3. I have a SIP conference phone (Clear one) that is connected to my session manager.
I able to make and receive calls with no problems.
The problem I am running into is on conference bridges.
The call connects and when the bridging service asks for a passcode the digits are not recognized.
The Clear One is sending the DTMF digits out of band.
How can I tell if I am expecting inband or out of band on the Avaya side?

 

[kyle555]

in the sip signaling group the call's coming in from session manager on. in'll be in band, or rtp payload.
then in the trunk group you'll have the media type for dtmf - might be 127 or something. the phone should have an option to configure that to make sure they match as well.

 

[Vidmine]

Thanks, We are set to rtp payload. Looks like a lot of setup to get out of band for this one device.
May look into an upgrade for the clear one so it can do inband

 

[kyle555]

No... You want to coordinate how you do DTMF across your devices. So, check the payload type in the sip phone, check the dtmf payload type in the incoming trunk to CM for the off-pbx station mapping and check the dtmf type your trunk to your bridge (pstn or internal) uses.

They don`t necessarily have to be the same, but they need to be accounted for and handled each step of the way. So, you can burn a DSP per PSTN call and go in-band on your PSTN facing SIP trunks and rtp-payload type 127 for everything else internal. CM can juggle the differences, but if you`re mixing up what`s pitching and catching from a set to a PBX or PBX to a trunk, you'll wind up in no touch tone land.