I have Google Voice on SP1 and it send DTMF without issue.
I have callcentric on SP2 for incoming call only. I also setup a gateway with
voip.ms. When I call out using the gateway IVR totally ignore the DTMF sent. I tried all the DTMF settings on
voip.ms web site and in obi (ITSP Profile B->DTMFMethod) none of them work.
Does anyone have any idea how I can get DTMF to be sent probably on the
voip.ms gateway? Thank you.