asterisk users - Mar 2004 - Voicemail prompts garbled

I'm having problems with the voicemail prompts.  The beginning of each 
prompt is garbled.  Prompts "edian mail" and "assword" can
be
recognized, but when it starts on the short phrases it is completely 
garbled.  It is almost like the subsequent phrase starts before the 
current phrase finishes.

I have isolated the LAN to the * box and the phones, so LAN congestion 
is ruled out.

The phones are Cisco 7940 using POS3-06-1-00.  The SIPDefault.cnf file 
is generic.  Calls between 7940 phones seem ok. I don't have any analog 
phones on Asterisk.

The system is a dual processor Xeon 2.4G. HT is off. Kernel is generic 
2.4.25.  Software CVS date is 3/26/04.  Zaptel has __SMP__ variable on. 
  CONFIG_ZAPATA_NET is also on but the hdlc0 devices aren't configured.

Having said that, I just called a Qwest test number that gives 5 seconds 
of 1000Hz tone.  Each time I make the call from a 7940 I hear (exactly) 
4 seconds of tone followed by 3 burps.  This is consistent for each call.

Can anyone help me out with this?

Thanks,


-- 
Michael Welter
Introspect Consulting, Inc.
Denver, Colorado
+1 303 674 2575
mike@introspect.com
www.introspect.com

This has been discussed before.  Insert a "wait" in your dialplan
before
the voicemail starts pumping out the rtp stream.  It seems the Cisco 
phones are slow to set up the audio stream.

Michael Welter wrote:
> I'm having problems with the voicemail prompts.  The beginning of each 
> prompt is garbled.  Prompts "edian mail" and "assword"
can be
> recognized, but when it starts on the short phrases it is completely 
> garbled.  It is almost like the subsequent phrase starts before the 
> current phrase finishes.
>
> I have isolated the LAN to the * box and the phones, so LAN congestion 
> is ruled out.
>
> The phones are Cisco 7940 using POS3-06-1-00.  The SIPDefault.cnf file 
> is generic.  Calls between 7940 phones seem ok. I don't have any 
> analog phones on Asterisk.
>
> The system is a dual processor Xeon 2.4G. HT is off. Kernel is generic 
> 2.4.25.  Software CVS date is 3/26/04.  Zaptel has __SMP__ variable 
> on.  CONFIG_ZAPATA_NET is also on but the hdlc0 devices aren't 
> configured.
>
> Having said that, I just called a Qwest test number that gives 5 
> seconds of 1000Hz tone.  Each time I make the call from a 7940 I hear 
> (exactly) 4 seconds of tone followed by 3 burps.  This is consistent 
> for each call.
>
> Can anyone help me out with this?
>
> Thanks,
>
>

-- 
Andres
Network Admin
http://www.telesip.net