I’ve been experiencing trouble with my DAHDI channels for some time and have
finally decided to try and resolve the issue.
Essentially, the problem I am having is that when a call comes in, and my
DAHDI phones therefore ring, Asterisk thinks that one of the handsets has
picked up to answer the incoming call – whereas in actual fact it is still
on hook. The call then gets instantly dropped (the phone is on-hook, after
all), and the caller has to redial.
Sample log (this is an incoming call from SIP/5555, that was “phantom
answered” by DAHDI/7. There is no time delay between the ‘answered’ line and
the ‘hungup’ line):