[Asterisk-Users] Re: Zap channel calling back after hangup(duetopolarity CID detection)

[Anders F Eriksson]

> That is the expected behaviour. =)
> It is so because when YOU hang up, asterisk hangs up the 
> channel and destroys it. A moment later (actually up to 90sec 
> in sweden) the pstn disconnects the call and signals a 
> polarity reversal. That reversal causes the above.
> I have a solution but I don't know enough about chan_zap to 
> do it, and don't have the time to learn.
> The solution is basically to wait(with a timeout) for a 
> reversal indicating that the PSTN has terminated the call 
> before destroying the channel. But I don't really know where 
> to put it.

Ah, thanks :)

At least it works now - I can live with the WARNING message. Hopefully
someone with a better knowledge of programming than I have will solve this
some day ...

Best regards,

Anders