[asterisk-users] UK FXO hangup detection with a twist

[Mike Dent]

On 31/03/2008, Steve Davies <davies147 at gmail.com> wrote:
>
> Hi,
>
> The twist? We actually have far-end hangup detection working fine, and
> that seems to be where the problem lies for most people. Our problem
> seems to be with requesting a hangup from our end reliably.
>
> If we originate the call, we can hang it up. This suggests to me that
> the Sangoma A200D is sending the correct hangup signaling. This way
> round, it is 100% reliable.
>
> If we accept a call originated elsewhere, then we cannot hang it up.
> Only the call originator seems to be able to do that. The upshot is
> that if asterisk hangs-up a line, and then tries to re-use it for an
> outbound call before the remote has disconnected, we are simply
> re-connected to the original caller, and start to play DTMF at them!
>
> Has anyone experienced this before? Anyone found a solution?



People regularly use this feature to answer a call, then decide they need to
run upstairs to speak etc, so they put
the receiver down, go upstairs (or wherever) and pick up the handset to
speak. It dates back many years and I  should think is designed in to the
system in the UK. Not sure on modern exchanges how long it would take for
the
line to clear.

Mike


Thanks,
> Steve
>
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