asterisk users - Apr 2004 - Random disconnect of calls

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@192.168.1.113 for seqno 102 (Request)
Apr 12 11:14:20 WARNING[-1210991696]: Maximum retries exceeded on call 
d92d9f87897a468a@192.168.1.113 for seqno 102 (Request)

I am not using NAT asterisk is on an internal ip.

Thanks for you help.

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@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@192.168.1.113 for seqno 102 (Request)
 >Apr 12 11:14:20 WARNING[-1210991696]: Maximum retries exceeded on call
 >d92d9f87897a468a@192.168.1.113 for seqno 102 (Request)
 >
 >I am not using NAT asterisk is on an internal ip.
 >
 >Thanks for you help.
 >
 >_______________________________________________
 >Asterisk-Users mailing list
 >Asterisk-Users@lists.digium.com
 >http://lists.digium.com/mailman/listinfo/asterisk-users
 >To UNSUBSCRIBE or update options visit:
 >   http://lists.digium.com/mailman/listinfo/asterisk-users
 >
 >

Eric Wieling wrote:
> rescue@port11.net wrote:
>
>> 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.
>
>
> Rnadom disconnect with X100P is usually caused by busydetect= or 
> callprogress= set to "yes"
Both are set to no. Checked that.