PSTN Failover (newbie)

Can someone advise me how to set up a PSTN failover if the voip internet server is unavailable.

what is this #@!*.

that would be spam. If you want to work from home and make $10k/day, make your penis/breasts/both bigger, or get knockoff phentermine tablets, it will be just what you need!

As for a redundant dial, you could try for the very simplest:

exten => whatever,1,Dial(SIP/provider/${EXTEN})
exten => whatever,2,Dial(ZAP/channel/${EXTEN})

that will try dialing the sip provider, if when that call ends for whatever reason you are still on the line it will dial the same number via pstn.

or you could use GotoIF and dialstatus to make somethign a bit smarter…

Its good to see that humour is still prevalent in forums.

Thankyou for your response Iron Helix, it is exactly what i was looking for.

Being new to the asterisk world (and on a steep learning curve), what would be an example of GoToIF and dialstatus.