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FXS can't break dial tone on T1 controller

We have a 2621 with an FXS card at a remote site. This eventually connects to a 3660 with a T1 controller running E&M immediate-start. The T1 controller is connected to a Nortel 81C. From the 81C, we can make successful calls to the telephone connected to the FXS port. At the far end, when we dial the destination pattern of the 3660 (48), we hear dialtone from the PBX. We can not break this dialtone however in order to dial a local. Help!

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Accepted Solutions
Blue

Re: FXS can't break dial tone on T1 controller

On the 2621 your VOIP dial peers need the command:

dtmf-relay h245-alphanumeric

Without that command the DTMF digits will not be heard by the 81C.

2 REPLIES
Blue

Re: FXS can't break dial tone on T1 controller

On the 2621 your VOIP dial peers need the command:

dtmf-relay h245-alphanumeric

Without that command the DTMF digits will not be heard by the 81C.

New Member

Re: FXS can't break dial tone on T1 controller

Thanks dgahm! Worked like a charm.

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