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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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 501’s). The best work-around I could recommend would be to have an intermediate interface like kamailio (sp) that handles the dual registration.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>Onur Cem Çelebi<br><b>Sent:</b> Friday, January 18, 2013 10:07 AM<br><b>To:</b> Asterisk Users Mailing List - Non-Commercial Discussion<br><b>Subject:</b> [asterisk-users] Annoying delay after main server goes down<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hello,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>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.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>