[asterisk-users] Discover connected Zap lines

[Vinz486]

2008/5/2 Tzafrir Cohen <tzafrir.cohen at xorcom.com>:
> On Fri, May 02, 2008 at 09:06:01AM +0200, Vinz486 wrote:
>  > 2008/4/30 Tzafrir Cohen <tzafrir.cohen at xorcom.com>:
>  > > On Wed, Apr 30, 2008 at 09:07:48PM +0200, Vinz486 wrote:
>  >
>  > ---------------------------------------------------------------------------------------------------------
>  > [May  2 08:51:00] WARNING[5119]: chan_zap.c:6685 handle_init_event:
>  > Detected alarm on channel 3: No Alarm
>  > [May  2 08:51:03] NOTICE[5119]: chan_zap.c:6678 handle_init_event:
>  > Alarm cleared on channel 4
>  > ---------------------------------------------------------------------------------------------------------
>
>  This means that you should be able to see it in the InAlarm: field in
>  'zap show channel 3'
>

Ok. Made some experiments.

InAlarm field show 1 if cable unplugged *BUT* only if in previouos
time cable was plugged.

In few words, at boot, InAlarm is 0, Cable plugged: 0, Cable unplugged: 1

If i use this field, after a boot without cable, my software will
think that the cable is plugged.

I found another useful field: Hookstate (FXS only).

It tell me if the cable is plugged ever after a boot without cable.

Hookstate (FXS only): Offhook  <------Cable plugged

Hookstate (FXS only): Onhook  <------Cable unplugged


I hope this can help other people (and make to think at Zaptel
developing to insert a field exactly for this purpose, eg: Cable:
plugged or Cable: unplugged).

Bye.

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