the reason is that you have a bug in your config files, most probably on SER which sends provisional response instead of an error response to * which in turn translates that to alerting on isdn. Verify your configs on SER and make sure you send an error back to * when the sip phone is unavailbale. You might also want to validate your cpb numbers on * so that if the number is invalid you send back a release with invalid number format back to the switch instead of forwarding the call to SER.
 
BR
 
Dawid
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Aimable
Sent: Friday, June 11, 2004 12:05 PM
To: [EMAIL PROTECTED]
Subject: [Asterisk-Users] Asterisk PRI calls to SER problem

Hi all,

I need help. I have a Linux box with SER as a proxy server with ip phones attached on it , and another linux box with Asterisk and T410 card connect to an E1 line .Whenever there is  a call from PSTN it is passed to Asterisk and then to SER box and then to the phone .every time an invalid number dialed from PSTN to SIP phones connected to SER asterisk says

that the call is progressing while it is not the case and send an alerting message to the Nortel DMS switch attached to it. Is there any way I can remove that alerting message and send the collect message to the switch? I think that the reason is that * is not directly connected to the phones it is calling

 

my setup is like this.

 

SIP

phones------------>SER--------------->Asterisk---------------->PSTN(PRI connected to NORTEL DES 100 switch)

 

I would like to find a way of

informing Asterisk that the call is progressing or something like that, not ringing until it gets the correct message from SER .

I am using Asterisk CVS-04/06/04-10:46:21 on Red Hat 9 and Sip Express

 Router version 12 on Red Hat 9.

 

I tried to use PRI_causes and “r” extension in extension.conf but still the problem is there.

 

 

 

 Any idea on how I can solve this problem?

 

 

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