I am not sure whether ITU ANSI standrad calls for it. But in real life I am having following probelm. A SIP phone registered with Asterisk calls a Mobile subscriber Asterisk ---------IAM------------>PSTN ( Mobile subscriber ) Asterisk <--------ACM--------------PSTN The SIP phone hears the ring back tone The Mobile subscriber rejects the call by pressing the release button. In this part of the world, call does not get forwarded to Mobile subscriber's voice mail. Probably incumbennt PLMN does not have voice mail service. Instead PSTN sends CPG with user busy. Asterisk <----CPG ( with user busy)----PSTN The SIP phone keeps hearing the ring back tone for 60-90 seconds and finally the PSTN sends RELEASE after 60-90 seconds. Asterisk <------REL-------------------PSTN Asterisk --------RLC ----------------->PSTN My idea is to cut this 60-90 seconds to 0 by sending REL to PSTN immediately after getting the CPG with user busy from PSTN. I have tried talking to PSTN to send RELEASE to Asterisk right after they send CPG with user busy but has been invain. So any help with the code will be appreciated. thanks, > From: adomjan at tvnet.hu> To: asterisk-ss7 at lists.digium.com> Date: Thu, 18 Dec 2008 09:02:08 +0100> Subject: [asterisk-ss7] V?: Understanding libss7 code> > The code is very readable, I red the all :)> where is in the itu/ansi standard that we have to do it?> > -- eredeti ?zenet --> T?rgy: [asterisk-ss7] Understanding libss7 code> Felad?: Rana Dhekial <dhekial at msn.com>> D?tum: 2008.12.18. 01:27> > > Hi Matthew,> > > Can you point me to some documentations to understand the libss7 source code and how it is linked with Asterisk? I have been struggling to modify your code to send ISUP_RELEASE on getting CPG with user busy from PSTN but has been successful yet.> > thanks,> > Rana> > > _________________________________________________________________> Send e-mail anywhere. No map, no compass.> http://windowslive.com/Explore/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_anywhere_122008> _______________________________________________> --Bandwidth and Colocation Provided by http://www.api-digital.com--> > asterisk-ss7 mailing list> To UNSUBSCRIBE or update options visit:> http://lists.digium.com/mailman/listinfo/asterisk-ss7> > > _______________________________________________> --Bandwidth and Colocation Provided by http://www.api-digital.com--> > asterisk-ss7 mailing list> To UNSUBSCRIBE or update options visit:> http://lists.digium.com/mailman/listinfo/asterisk-ss7 _________________________________________________________________ Send e-mail faster without improving your typing skills. http://windowslive.com/Explore/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122008 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20081218/58dd2c8e/attachment.htm
|