I see alot of issues with DTMF on the system.
Our original set up was with KIAX and IAX setup - Vicidialnow. We did not have the ability to do extensions in the native setup. We did add sip and then the extension transfer ability popped up.
Refresh: We do a third party verification. We need to click on # to go to the next question. When clicked on in KIAX it tries to transfer us to another extension.
My work around idea for us and maybe for others with the DTMF issue's is to try and remove the ability to activate any features with DTMF tones in the softphones - since the softphones provide a quick and fast DTMF - I feel that alot of DTMF problems can be resolved easier doing softphone - eventhough you can not here the BEEPS....
Ideas on removing the # in extensions...