[Asterisk-Users] PRI dialing IVR with inband DTMF

[Anthony Cennami]

I have a client who is using a Shoretel PBX.  This PBX apparently does not
send DTMF information OOB, but instead sends this inband via the B-channel.

This is traversing an Asterisk box via a PRI.  The user calls the IVR
(1-800-CALL-DHL), receives audio, but is not able to present DTMF to engage
the IVR.  With some light research it appears that the DSP is not activating
until the call is answered.

DTMF on the SIP side is set to RFC2833 -- calls all work fine when
originating from a SIP phone connected to the same device.

Any suggestions on what needs to be done to pre-emptively enable DSP and or
early media on the PRI (outbound)??

Thanks,

Anthony

---SIP---->Asterisk----PRI---->Shoretel




-- 
Anthony D Cennami
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