VoIP and DTMFxPosted: April 24, 2008
I have at home VoIP which works fine and without any problems except one. When I have conference call mostly hosted by AT&T you have to dial in and then insert participants code. Whenever I was inserting participants code it tells me that I have wrong number.
Calling my operator support figure out that there is one setting which has to be changed.
Go to EXT (extension) and set the DTMF Tx Method: to INFO.