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How to configure Airtel SIP trunk



register => +917949031XXX@gj.ims.airtel.in:XXXXXne#1:+917949031XXX@gj.ims.airtel.in@10.5.110.101/+917949031XXX


[AirtelSIP]

disallow=all

allow=all

type=friend

dtmfmode=rfc2833

qualify=yes

nat=force_rport,comedia

insecure=invite,port

host=gj.ims.airtel.in

username=+917949031XXX@gj.ims.airtel.in

secret=XXXXX#1

fromdomain=gj.ims.airtel.in

defaultexpirey=120

canreinvite=no

context=trunkinbound

maxexpiry=600

progressinband=yes



exten => _65X.,1,AGI(agi://127.0.0.1:4577/call_log)

exten => _65X.,n,SipAddHeader(P-Preferred-Identity: <sip:+917949031XXX@gj.ims.airtel.in>)

exten => _65X.,n,Progress()

exten => _65X.,n,Dial(SIP/${EXTEN:2}@AirtelSIP,,tTo)

exten => _65X.,n,Hangup()



for custom callerid 


;;;;USE CALLER IN HEADER as AIRTEL REQUIRED CID IN HEADER

exten => _67X.,1,AGI(agi://127.0.0.1:4577/call_log)

exten => _67X.,n,Set(CALLERID(num)=+${CALLERID(num)})

exten => _67X.,n,SipAddHeader(P-Preferred-Identity:<sip:+${CALLERID(num)}@mu.ims.airtel.in>)

exten => _67X.,n,Progress()

exten => _67X.,n,Dial(SIP/0${EXTEN:2}@AirtelSIP,,tTo)

exten => _67X.,n,Hangup()





==================================================================

With PBX:- 

[trunkinbound]

exten => _+X.,1,Noop(INCOMING CALL)

exten => _+X.,n,Set(EXTENSIONS=${EXTEN:1})  ; Remove the '+' from EXTEN

exten => _+X.,n,Set(PHONENUMBER=${CALLERID(num)})

exten => _+X.,n,Dial(SIP/GATEWAY/${EXTENSIONS},60,rntT)

exten => _+X.,n,Hangup()



[from-server]

exten => _X.,1,Noop(Outgoing Call)

exten => _X.,n,Set(DID_NUMBER=+${CALLERID(num)}) ; Get DID from PBX

exten => _X.,n,Noop(Using Caller ID: ${DID_NUMBER}) ; Debugging log

exten => _X.,n,Set(CALLERID(all)="${DID_NUMBER}" <${DID_NUMBER}>) ; Ensure both Name and Number are set

exten => _X.,n,SipAddHeader(P-Preferred-Identity: <sip:${DID_NUMBER}@dl.ims.airtel.in>) ; Set Preferred Identity

exten => _X.,n,SipAddHeader(P-Asserted-Identity: <sip:${DID_NUMBER}@dl.ims.airtel.in>) ; Set Asserted Identity

exten => _X.,n,Progress()

exten => _X.,n,Dial(SIP/${EXTEN}@AirtelSIP,,tTo)

exten => _X.,n,Hangup()








register => +911144XXXXX@dl.ims.airtel.in:AbcXXXX:+911144XXXXX@dl.ims.airtel.in@10.5.68.243/+911144XXXXX


[AirtelSIP]

disallow=all

allow=all

type=friend

dtmfmode=rfc2833

qualify=yes

nat=force_rport,comedia

insecure=invite,port

host=dl.ims.airtel.in

username=+911144XXXXX@dl.ims.airtel.in

secret=AbcXXXX

;fromuser=+911144XXXXX

fromdomain=dl.ims.airtel.in

defaultexpirey=120

canreinvite=no

context=trunkinbound

maxexpiry=600

progressinband=yes

sendrpid=yes

trustrpid=yes




;;;;;PBX TRUNK


[GATEWAY]

disallow=all

allow=ulaw

allow=alaw

type=friend

dtmfmode=rfc2833

username=GATEWAY

secret=GATEWAY

qualify=yes

insecure=port

nat=yes

host=dynamic

sendrpid=yes

trustrpid=yes

canreinvite=no

context=from-server




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