[Asterisk-Users] Sangoma A200 preventing Zap channels

[Sangoma Techdesk]

We ran some tests on our line here where a scope and voltmeter, we were able
to see the waveform changes on incoming call and the voltage at 6-7v during
the conversation, but no drop in voltage (or reverse tip/ring) when the
remote side hanged-up. The voltage went back to around 48v after 8-10
seconds, which is when the FXO port goes on-hook. 
 
We used a regular analog phone connected directly to that line and it did
not detect the hang-up either. It looks like some Bell lines  do not provide
disconnect supervision. 
 
 
 
David Yat Sin
Sangoma Technologies
(905) 474 1990 x119
(800) 388 2475 x199
MSN: david.ys1 at hotmail.com
Email: davidy at sangoma.com
Wiki: http://sangoma.editme.com <http://sangoma.editme.com/> 
 
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