[asterisk-users] Asterisk not picking up (some) calls due to zaptel detecting and clearing alarms

[Tzafrir Cohen]

On Thu, Mar 27, 2008 at 01:40:48PM -0300, Gonzalo Servat wrote:
> Hi All,
> 
> For the most part, the PBX works as it should. Occasionally people complain
> that they call and the PBX doesn't pick up. Other times it looks like the
> call is answered by Asterisk but I still hear ringing and I start listening
> to the IVR menu a few seconds into it.
> 
> As for Asterisk not picking up, I see the following in the logs:
> 
> [Mar 27 13:32:29] NOTICE[13197]: chan_zap.c:7071 ss_thread: Got event 18
> (Ring Begin)...
> [Mar 27 13:32:30] NOTICE[13197]: chan_zap.c:7071 ss_thread: Got event 2
> (Ring/Answered)...
>     -- Executing [s at incoming:1] Answer("Zap/2-1", "") in new stack
>     -- Executing [s at incoming:2] Wait("Zap/2-1", "1") in new stack
> [Mar 27 13:32:30] WARNING[13197]: chan_zap.c:4203 get_alarms: Unable to
> determine alarm on channel 2
> [Mar 27 13:32:30] WARNING[13197]: chan_zap.c:4424 zt_handle_event: Detected
> alarm on channel 2: No Alarm
>   == Spawn extension (incoming, s, 2) exited non-zero on 'Zap/2-1'
>     -- Hungup 'Zap/2-1'
> [Mar 27 13:32:31] NOTICE[13197]: chan_zap.c:7514 handle_init_event: Alarm
> cleared on channel 2
> 
> The above messages repeat themselves a number of times as the ringing
> continues and causes Asterisk to try and pick up the call again (and fails
> with the alarm thrown which then gets cleared).
> 
> Any suggestions??
> 
> I'm using Asterisk 1.6.0-beta4 and Zaptel 1.4.9.2.

A freshly-built Asterisk? Built vs. zaptel 1.4.9.2 ? 

Shouldn't it have picked up the alarm as a red alarm on the channel?

(Besides the problem. Is 1.4 SVN recommended for that at the moment?)

-- 
               Tzafrir Cohen
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http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir