[Asterisk-Users] Sangoma A200 preventing Zap channels from disconnecting immediately after PSTN line hangs up (getting empty voicemails)

[Rich Adamson]

Mike Garey wrote:
> As far as I can tell, after discussing this matter with other asterisk
> users in my area, my telco _does_ provide disconnect supervision..  It
> seems that the problem is actually related to the Sangoma A200 card
> I'm using, as two other people both using this same card have
> expressed the same problem..  Are there any other users on this list
> using the Sangoma A200 FXO port card, and experiencing problems with
> asterisk not detecting when a channel has been disconnected?  Thanks,

Hasn't been a problem here with either the TDM400 or A200D cards (both 
are in use in same box).

Just tested it again from an external pstn phone, calling into asterisk.
When the pstn phone hangs up, asterisk recognized it and dropped the sip 
session that was handling the call (to a 7960).