Диалплан
1, NoOP(Call to another PBX)
n, Set(PROVIDER_NAME=SIP-123456789)
n, Dial(SIP/${PROVIDER_NAME}/${EXTEN},600,tkTeKM(dial_answer)b(dial_create_chan,s,1))
Extensions.conf
(Дописать в конец)
[internal](+)
exten => _1XX,1,Goto(applications,${EXTEN},1)
exten => _2XX,1,Goto(applications,${EXTEN},1)
exten => _3XX,1,Goto(applications,${EXTEN},1)
exten => _5XX,1,Goto(applications,${EXTEN},1)
exten => _6XX,1,Goto(applications,${EXTEN},1)
exten => _7XX,1,Goto(applications,${EXTEN},1)
exten => _9XX,1,Goto(applications,${EXTEN},1)