Do not make an outgoing call when registration has disappeared

Question

Asterisk

There is FreePBX.
A route with 3 trunks is created in outbound routes
1) Trunk 1
2) Trunk 2
3) Trunk 3
Here is Trunk1:

[2014-06-06 11:18:09] NOTICE[2230] chan_sip.c:    -- Registration for '[email protected]' timed out, trying again (Attempt #17)

How to make an outgoing call go through the trunks following it.

Answer 1

Find and set Continue if Busy