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New Member

7937 on a CUCM 6.0: No DTMF

I've got a 7937 IP Conference phone connected on a CUCM 6.0 server. The phone works fine when calling to/from extensions as well as outbound/inbound calls. However, after an outbound call is initiated it will not pass the DTMF tones so it can't enter pins for conference bridges, etc.

Any ideas?

2 REPLIES
Green

Re: 7937 on a CUCM 6.0: No DTMF

which type of PSTN GW or trunk u r using.

Please use latest firmware for 7937.

Thanks

New Member

Re: 7937 on a CUCM 6.0: No DTMF

SIP trunk to an MPLS network.

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