[asterisk-users] Backup Route

[Abdul]

Good Day All,

Is it possible to put backup route in asterisk dial plan? fro the example if the first carrier disconnect the call with Congestion or Circuit busy then asterisk can dial another carrier?

I did the following but it is not working as i need to dial the second one only on congestions or circuit busy.

[wellsip]
exten => _x.,1,AGI(routing.pl)
exten => _x.,2,Set(TIMEOUT(absolute)=${TMO}) 
exten => _x.,3,Dial(SIP/${CNUM}@${CAIP})
exten => _x.,3,Dial(SIP/${CNUM}@${CAIP2})
exten => h,1,DeadAGI(stop.pl)




-------- 
Regard,
       
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