snippet from /etc/asterisk/extensions_additional.conf
[from-trunk-sip-voipms]
include => from-trunk-sip-voipms-custom
exten => _.,1,Set(GROUP()=OUT_1)
exten => _.,n,Goto(from-trunk,${EXTEN},1)
;–== end of [from-trunk-sip-voipms] ==–;
[ext-trunk]
include => ext-trunk-custom
exten => 1,1,Set(TDIAL_STRING=SIP/voipms)
exten => 1,n,Set(DIAL_TRUNK=1)
exten => 1,n,Goto(ext-trunk,tdial,1)
exten => 2,1,Set(TDIAL_STRING=SIP/vitel-out)
exten => 2,n,Set(DIAL_TRUNK=2)
exten => 2,n,Goto(ext-trunk,tdial,1)
exten => 3,1,Set(TDIAL_STRING=SIP/AlcazarTollFree)
exten => 3,n,Set(DIAL_TRUNK=3)
exten => 3,n,Goto(ext-trunk,tdial,1)
exten => tdial,1,Set(OUTBOUND_GROUP=OUT_${DIAL_TRUNK})
exten => tdial,n,GotoIf($["${OUTMAXCHANS_${DIAL_TRUNK}}" = “”]?nomax)
exten => tdial,n,GotoIf($[${GROUP_COUNT(OUT_${DIAL_TRUNK})} >= ${OUTMAXCHANS_${DIAL_TRUNK}}]?hangit)
exten => tdial,n(nomax),ExecIf($["${CALLINGNAMEPRES_SV}" != “”]?Set(CALLERPRES(name-pres)=${CALLINGNAMEPRES_SV}))
exten => tdial,n,ExecIf($["${CALLINGNUMPRES_SV}" != “”]?Set(CALLERPRES(num-pres)=${CALLINGNUMPRES_SV}))
exten => tdial,n,Set(DIAL_NUMBER=${FROM_DID})
exten => tdial,n,GosubIf($["${PREFIX_TRUNK_${DIAL_TRUNK}}" != “”]?sub-flp-${DIAL_TRUNK},s,1())
exten => tdial,n,Set(OUTNUM=${OUTPREFIX_${DIAL_TRUNK}}${DIAL_NUMBER})
exten => tdial,n,Set(DIAL_TRUNK_OPTIONS=${IF($["${DB_EXISTS(TRUNK/${DIAL_TRUNK}/dialopts)}" = “1”]?${DB_RESULT}:${TRUNK_OPTIONS})})
exten => tdial,n,Set(CALLERID(number)=${CALLERID(number):0:40})
exten => tdial,n,Set(CALLERID(name)=${CALLERID(name):0:40})
exten => tdial,n(hangit),Hangup
;–== end of [ext-trunk] ==–;
[from-trunk-sip-vitel-out]
include => from-trunk-sip-vitel-out-custom
exten => _.,1,Set(GROUP()=OUT_2)
exten => _.,n,Goto(from-trunk,${EXTEN},1)
;–== end of [from-trunk-sip-vitel-out] ==–;
[from-trunk-sip-AlcazarTollFree]
include => from-trunk-sip-AlcazarTollFree-custom
exten => _.,1,Set(GROUP()=OUT_3)
exten => _.,n,Goto(from-trunk,${EXTEN},1)
;–== end of [from-trunk-sip-AlcazarTollFree] ==–;
