DTMF This topic has 0 replies, 1 voice, and was last updated 19 years, 4 months ago by Lean. Viewing 1 post (of 1 total) Author Posts 1st July 2005 at 22:12 #29728 LeanGuest Hello, I am having problems with DTMF.. I have a quintum AX. It occurs sometimes. can anyone pls help? Author Posts Viewing 1 post (of 1 total) The forum ‘Voice over IP’ is closed to new topics and replies.