[Asterisk-Users] Voicemail prompts garbled

[Andres]

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