I think this is a phone problem not an asterisk one. In my experience a SIP (IP) phone takes about 20 seconds to properly negotiate (re)registration (longer for Polycom 501s). The best work-around I could recommend would be to have an intermediate interface like kamailio (sp) that handles the dual registration.
From: [email protected] [mailto:[email protected]] On Behalf Of Onur Cem Çelebi Sent: Friday, January 18, 2013 10:07 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [asterisk-users] Annoying delay after main server goes down Hello, we have distributed lots of cisco spa303 IP phones and get them work with Asterisk. I have configured proxy and alternate proxy and enabled "dual registration" features in provisioning files(xml files). All phones are able to subscribe to both of servers. But the problem is, if main server goes down, i am obliged to wait nearly 20 second in order to place a call over second server. How to get alternate proxy work immediately after first server fails ? Thanks in advance.
-- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
