VFRDavid wrote:This post was about dahdi channels - I have tried a few options in sip.conf for the dtmfmode= setting - and - I cannot seem to get consistent recognition of keys pressed for Call Menus or Survey campaign choices. I've tried calling from several phones (Cisco SIP, Zoiper/Soft, land lines) - it seems to be something with the way that ViCi/Asterisk is (not) recognizing them...
Basics:
WHAT settings have you used for DTMF?
Who is pusthing the buttons (Agent, Prospect, 3rd party caller?). Usually it's the prospect, but I believe in checking. No assumptions.
Have you verified the DTMF settings from the source path through which the tone proceeds? (IE: If agent, verify from the phone to the servr. If prospect, verify from prospect to carrier to server ... entire path you have access to).
Check the asterisk logs of the arriving signal and see what's stopping the DTMF. Is asterisk receiving it, but somehow it's getting lost?
What settings does the Carrier recommend/specify for DTMF?
Have you tested a different carrier?
Is this for inbound or outbound? (If it's only for one of those, have you thoroughly tested the other? I've had instances where ONLY ONE CID would fail for outbound DTMF through a small group of carriers (no kidding! one cid, outbound only, a just a few carriers)