Topic: System goes down during Internet outage

[ldkeen]

I have the latest version of Sail installed at home with a single port TDM card in the system. Basically all incoming calls come in via the TDM and all outgoing calls go via my VOIP provider. If I need to I can make an outgoing PSTN call by pre-selecting the DAHDI trunk.
My problem is whenever the Internet goes down the whole phone system goes down as well. I have  a snom 370, a couple of ATA's and a few grandstreams and ALL of the extensions (as well as all the trunks) become unreachable during an outage. Is this normal or have I misconfigured something. Any calls coming into the PSTN go to operator VM after a couple of rings and I can't make outgoing calls through the PSTN line. Has any else seen this before.
Lloyd

[Franco]

Is SAIL your gateway as well, or are you using in server-mode only.
The only thing I can think of is that you have a router in your network besides Sme/SAIL, and that is going down, bringing your internet and phone system down with it (phones are looking at the gateway to register).

[SARK devs]

Hi Lloyd

yes it will do that.   It is to do with the way in which Asterisk does name resolution.  You can try adding srvlookup=no to your sip header.

Also, you can change any carrier domain names to true IP addresses. 

Best

S