Digital ISDN used Q931 messages. You should get a disconnect message from telco on the d-channel 23.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Daniel Hazelbaker Sent: Monday, July 07, 2008 4:39 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [asterisk-users] US T1 Hangup Detection We are in the process of preparing to move our Asterisk server to a Digital T1 interface card instead of a analog card (via an Adtran which is now connected to the T1). I did a preliminary test the other day and hooked the T1 line up to the T1 card, bypassing the Adtran. This worked rather well I must say. The two issues I ran into are: 1) Caller ID is not working even though I enabled it. I simply do not see _anything_ related to caller ID going on. (not major, I am not even sure the phone company has it setup properly so I need to talk to them first, Verizon) 2) Asterisk is not detecting the far end hangup. Through the Adtran it does, but direct digital it does not. I bridged an incoming call to an analog phone and listened as I hung up the far end (cell-call). I hear a audible "click", silence, and then after maybe a half second I hear dialtone. I tried turning on hanguponpolarity switch, tried turning it off, tried turning callprogress on and off, still does not detect the hangup. Am I missing something obvious in Asterisk (this is my first digital hookup)? I read somewhere that Asterisk is already suppose to detect dialtone to know that the far-end hungup. Do I need to call my phone company and get details on exactly how they are triggering the hangup, though I would think with digital it "just happens"). Daniel _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ----------------------------------------- Disclaimer: This e-mail communication and any attachments may contain confidential and privileged information and is for use by the designated addressee(s) named above only. If you are not the intended addressee, you are hereby notified that you have received this communication in error and that any use or reproduction of this email or its contents is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and deleting it from your computer. Thank you. _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users