[cisco-voip] Out-of-band DTMF & SIP Trunks?

[Bennie Grant]

Guys

I have a customer that is having a strange issue with DTMF

As you know, Arc is a CTI application (using the CiscoTSP - different to JTAPI or Unity). When a call comes into the Arc IVR product from an external route (all of which are SIP Trunks), the DTMF digits are not being received. It works fine if you call into the system from an internal phone...

Unity also works fine - however that's a different integration point

Cisco Developers can see the issue, and have advised that it is because the DTMF is set to in-band, which the CiscoTSP/CTI Port does not support - and that DTMF must be set to out-band

However, the customer is sure that DTMF is set to out-band already.

Does anyone have any experience with this - any pointers? I believe the partner has raised a case with TAC as well

Thanks

*************************************************************************
Please consider the environment before printing this e-mail
*************************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.  http://www.mettoni.com

Mettoni Ltd
Registered in England and Wales: 4485956
9400 Garsington Road, Oxford Business Park, Oxford, OX4 2HN
*************************************************************************

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20101028/4bfe0e1c/attachment.html>