Hi all,
Have a system running asterisk 1.8 and a few times a day users are getting a DTMF tone midway through the conversation which the external person on the phone doesn’t hear but goes off for a few seconds. This is very sporadic throughout the day, most people are on the phone all day and they will experience it maybe once or twice a day.
They are running Yealink T26 phones, so far i have changed the DTMF setup to inband but this doesn’t seem to have made a difference.
From what i’ve found across multiple forums on the web people seem to have the problem but i’ve not found one that had an actual fix apart from changing to inband but this doesn’t appear to have made a jot of difference to my problems.