[Asterisk-Users] Re: Zaptel FXO channel picked up too early => no audio

[LJ]

I had a similar problem once but on inbound PRI channels.  If I answered the 
call and tried to playback a sound file it was as if there was no speech 
path.  You could see on the console that the playback was taking place, but 
never hear any audio on the channel, and then it would finally timeout and 
disconnect.  If instead of answer and playback, I sent the call to a SIP 
station you could answer the ringing terminal and have normal two-way speech 
path.  It drove me nuts for several days.

How I ended up fixing the problem was by running /sbin/ztcfg (for a second 
time), unload asterisk and then restart asterisk and/or reboot.  That fixed 
the problem for me and I have not seen it occur since.


"Benjamin on Asterisk Mailing Lists" <benjk.on.asterisk.ml at gmail.com> wrote 
in message news:10913b9f0410261850494af73c at mail.gmail.com...
>I am experiencing a rather strange problem.
>
> exten => s,1,Answer
> exten => s,2,Background(welcome)
> ... other auto attendant stuff ...
>
> will result in the calling party not getting any audio (neither
> ringing feedback nor IVR audio) if callling in from the PSTN on an
> X100P.
>
> However ...
>
> exten => s,1,Dial(SIP/1000,5,r)
> exten => s,2,Answer
> exten => s,3,Background(welcome)
> ... other auto attendant stuff ...
>
> works just fine in the very same scenario (PSTN caller coming in on 
> X100P).
>
>
> I have also tried Wait(5) and Ringing followed by Wait(5) but those
> don't help. The caller will only get audio if an actual phone is left
> ringing for at least five seconds. Otherwise the following
> autoattendent will not be heard by the caller.
>
> This is quite annoying because this particular auto-attendant was
> meant to be quiet.
>
> signalling on the FXO is fxs_ks, callerid detection is off, busydetect is 
> on.
>
> Has anybody seen this sort of thing? Any ideas?
>
> thanks
> rgds
> benjk
>
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