Guys, I assure you this is probably the most interesting and weird problem you have encountered (or definitely up there). I'm using ABE 2.1.2C and roughly 500 or so Cisco 7911G Phones.
The following is what happens: When trying to dial a number from the cisco 7911G phone it may randomly get stuck on 'Dialing'. The SIP history on the asterisk end goes like this: 1. Cisco -> INVITE -> Asterisk 2. Asterisk -> Proxy Authorization Required -> Cisco 3. Cisco -> gone to sleep. If I login to the cisco phone, (using log/log) i can see that the phone is trying constantly to reach the asterisk server. It retransmits the packet 10 times and then gives up and the call terminates. This behavior depends primarily on the length of the number dialed, though sometimes the 'mood' of the Cisco also comes into play. It may be impossible to dial 11 digit numbers at one point but 2 hours later it may magically work. All other phones on this network work perfectly. This includes Linksys, polycom and Grandstream. The most expensive phone causes issues - go figure! :) The following alleviates the problem: 1. If I mess around with the length of the 'realm' parameter in sip.conf it can randomly make the phones happy or unhappy. The smaller the better, however some phones may still get stuck on dialing. 2. Removing secrets from the sip.conf friend entry fixes this issue. Its the proxy authorization message that really pisses the cisco off. 4. I have tried randomly to use insecure, fromdomain, etc but nothing works. Also- the same phones work perfectly with our Asterisk 1.4.26 office server. Help is most appreciated. We are at a loss here. -- Faraz R Khan CEO Emergen Consulting Pvt Ltd www.emergen.biz +92.21.529.0381 (3 lines) x200 _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 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
