[Asterisk-Users] One SIP dead, all SIP dead -- sipmedia gone?

[Eric "ManxPower" Wieling]

Jay Milk wrote:
> I'm having the following recurring problem with asterisk:
> 
> When for any reason one of my SIP providers fails to register (i.e.
> internet connection dropped), ALL SIP channels fail.  This means that,
> for example, when my internet connection is out, none of my internal sip
> phones register, and I'm unable to place outgoing calls (through IAX),
> or to check voicemail.
> 
> Currently (and since yesterday evening), sipmedia.com/myphonecompany.com
> is completely off the radar.  No DNS entry found -- not even a
> name-server.  They've had this sort of massive failure before, but this
> is one of the longest for all I can tell.  While that's a major problem,
> it also meant that until I commented out the register =>
> sip.sipmedia.com statements, my entire phonesystem was unavailable.
> 
> 1. Is there any way to get Asterisk to behave less absolute when one sip
> registration fails?
> 2. Is anyone else experiencing the same sipmedia outtage, and/or has
> information on when they'll be back?  Tech support seems affected, and
> other direct numbers I have go into voicemail.

Asterisk handles DNS failures VERY badly.  Make sure your phones and 
Asterisk always refer to devices by IP, not by DNS name.