[Asterisk-Users] Random disconnect of calls

[rescue at port11.net]

Chris A. Icide wrote:

> This was happening to me as well.
>
> What finally fixed it was disabling echo cancelling on the X100P cards 
> in the zapata.conf files.
>
> However this resulted in a horrid echo on my cisco phone when I was 
> using a line attached via one of my x100P cards.
>
> So I went back and re-enabled echo cancelling and set echotraining=yes.
>
> I've had much better luck with, however I still get a dropped call now 
> and then.
>
> -Chris
>
> On 08:35 AM 4/12/2004, rescue at port11.net wrote:
> >Hi
> >
> >I am experiencing some weird behaviour. Calls get disconnected random.
> >There is no error in the log files.
> >
> >Sometimes I can talk over 30minutes+ and it is fine. Just earlier I was
> >only able to talk 2 minutes per session and get disconnected. All I hear
> >when this happens is a fast busy.
> >My set up is this: 8 * Grandstream Budge Tone 101. 4 * X100P cards.
> >Compaq 1Ghz ML Server.
> >I am running Asterisk 0.7.2 installed from RPM's on Fedora.
> >
> >The CPU load of the machine is fine
> >
> >What I noticed and I do not know if this is related to the problem but
> >the messages file of asterisk has the following entrys:
> >Apr 12 11:11:50 WARNING[-1210991696]: Maximum retries exceeded on call
> >9dabd34a2383e5bd at 192.168.1.113 for seqno 102 (Request)
> >Apr 12 11:14:20 WARNING[-1210991696]: Maximum retries exceeded on call
> >d92d9f87897a468a at 192.168.1.113 for seqno 102 (Request)
> >
> >I am not using NAT asterisk is on an internal ip.
> >
> >Thanks for you help.
> >

Yes turning off echo cancelling would be fatal. We have some serious 
echo going on here that I can not seem to track done. I am assuming it 
is just this old building. Maybe we can go ISDN or so but the dropped 
calls are rather bad.