[asterisk-users] Provider UNREACHABLE

[Barry Fawthrop]

Thanks All for your replies

A couple have mentioned backup routes, as I'm clueless on backup routes

How do I program the dialplan in extensions.conf to:

(a) try multiple provider to make an outgoing call  based on current 
latency between my * box and the different providers ?

(b) have if provider 1 goes down, then someone can still call me at 
number xxx-xxxx but now come in through provider 2 or provider 3 ?

Thanks all

Barry