[asterisk-users] pstn hangs up: MWI no message waiting ??

[sean darcy]

Doug Bailey wrote:
> ----- "sean darcy" <seandarcy2 at gmail.com> wrote:
> 
>> pstn incoming on a TDM400P, sometimes i* won't answer, going into
>> a loop like this:
>>
>>   -- Starting simple switch on 'DAHDI/4-1'
>> [Jan 16 10:38:55] NOTICE[5808]: chan_dahdi.c:7130 ss_thread: Got event
>>
>> 18 (Ring Begin)...
>> [Jan 16 10:38:57] NOTICE[5808]: chan_dahdi.c:7130 ss_thread: Got event
>> 2 
>> (Ring/Answered)...
>> [Jan 16 10:38:57] NOTICE[5808]: chan_dahdi.c:7299 ss_thread: MWI: 
>> Channel 4 no message waiting!
> 
> This message occurs when the pstn sends a FSK spill indicating the 
> message waiting status of the FXO port in question.   This may encoded 
> in the caller ID indicator or may be contained in its own message spill. 
> This is output as a NOTICE logging message. 
> 
> Regards, 
> Doug Bailey 
> 

I'm not sure I understand all that, but why does asterisk hang up? It 
means I can't receive any calls on that pstn line. AFAICS, only 
restarting asterisk allows calls to be received.

A cron job to restart every 5 minutes?

sean