[Asterisk-Users] Hangup detection problems

[it]

Hi, I don't know if you should config the busy signal's cadence in your
Channel Bank?

john

----- Original Message -----
From: "David Carr" <dac1 at drgutah.com>
To: <asterisk-users at lists.digium.com>
Sent: Wednesday, April 16, 2003 12:05 AM
Subject: [Asterisk-Users] Hangup detection problems


> I've reviewed the mailing list archives for all hangup detection posts
> (numerous) and have tested all kinds of configurations to no avail.
>
> I have two POTS lines using loop start. One is patched straight from my
wall
> jack to the X100P card in my asterisk box. The second one plugs into an
fxo
> port on a carrier access bank 1 channel bank (12 fxo, 12 fxs) which is
> plugged into a T100P card in the same asterisk box. Channels 1-12 are fxo,
> 13-24 are fxs, and 25 (X100P) is fxo.
>
> When I plug either POTS line into the X100P, dial in from the outside, and
> leave myself a voicemail, hangup detection occurs correctly about 20
seconds
> after I hang up. It sucks but at least it works somewhat. However, when I
> plug either POTS line into the channel bank, dial in from the outside, and
> leave myself a voicemail, hangup detection never occurs. When I hang up
and
> the channel bank keeps the line open, my telco provider gives a fast-busy
> signal that gets captured in the voicemail until the max voicemail size is
> reached.
>
> I've tested fxo ports configured as loopstart and kewlstart but neither
> configuration seems to correct the situation. I've also tried every
> combination of busydetect=yes and callprogress=yes commented out and left
in
> and nothing seems to correct the situation. I think busydetect is supposed
> to work as a last resort, but something about the cadence of the fast-busy
I
> get from my telco provider doesn't get caught by the busydetect code.
>
> I checked my channel bank dip switches to ensure the fxo ports are set to
> loopstart and they are. I'm using the latest cvs code as of midnight.
>
> If the change in CO loop current is sufficient to let the X100P know it
got
> hung-up, why wouldn't my channel bank/asterisk sense the same change in
loop
> current to detect the hangup? Alternatively, If the X100P is detecting
> hangup via the last resort busydetect, why wouldn't the same cadence on my
> channel bank fxo port trigger busydetect as well? It's interesting that
even
> when I physically disconnect the channel bank fxo port from the CO wall
jack
> in mid-call, asterisk and the channel bank still don't see a hangup. The
> channel bank LED continues to show off-hook indefinitely.
>
> Is anyone else using a T100P card with a CAC Access Bank channel bank? I
> don't know what else to try.
>
> Please help.
>
> Dave Carr
>
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