A DNS cache on your asterisk box may be the answer. Google Asterisk DNS Cache, many hits.
> -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > Alejandro Imass > Sent: Tuesday, 23 November 2010 6:18 a.m. > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] SIP Extensions and loss of > Internet connection > > On Mon, Nov 22, 2010 at 11:44 AM, Daniel Bareiro > <[email protected]> wrote: > > Hi, Alejandro. > > > >> > A few days I have problems connecting to the Internet on my house > [...] > > It would appear that the server for some reason was 'locked'. For > > example, when I try to register from Twinkle softphone, I get the > > following: > > > > ----------------------------------------------------------------- > > lun 13:41:56 > > Daniel, registration failed: 503 Service Unavailable > > ----------------------------------------------------------------- > > > > > > I have had a similar problem when we have some sort of > network disruption, but it _never_ affects clients on the > LAN, it only affects my SIP registrations on the public > network. I have 2 NICs one on the public network with a > public IP (but dynamic), and one on the LAN. I also have a > cron to a dyndns service that updates the name of this > server so other PBX can register to it. > > Anyway, sometimes, but very rare, something happens and the > is no way that it re-registers to external SIP sources, and > no other external SIP can register with it either. Nothing > works except to reboot the server a-la Windoze. I have > Asterisk 1.6 on FreeBSD 8. I have always attributed this > problem to my set-up or a quirky NIC but maybe it's related > to your problem (although it has _never_ happened to us in > the LAN extensions). Unable to find a solution, and since > it's really very rare, we have test calls every day to make > sure everything is working > ;-) > > Best, > Alejandro Imass > > -- > _____________________________________________________________________ > -- 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 -- _____________________________________________________________________ -- 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
