BSNL Incoming DID Dialplan

 

[from-trunk]

; Try to capture DID if provided directly

exten => _X.,1,NoOp(Incoming call with DID: ${EXTEN} and Caller ID: ${CALLERID(num)})

 same => n,Set(realDID=${EXTEN})

 same => n,Set(CALLERID_INFO=${CALLERID(num)})

 same => n,NoOp(Direct DID: ${realDID}, Caller ID: ${CALLERID_INFO})

 same => n,Dial(SIP/GATEWAY/${EXTEN})

 same => n,Hangup()

; Fallback if no DID is provided (calls to 's' extension)

exten => s,1,NoOp(Fallback - No DID provided, attempting header extraction)

 same => n,Set(CALLERID_INFO=${CALLERID(num)})

 ; Extract the DID from the To header and strip any additional information

 same => n,Set(PJSIP_HEADER=${SIP_HEADER(To)})

 same => n,Set(realDID=${CUT(CUT(PJSIP_HEADER,@,1),:,2)})

 same => n,ExecIf($["${realDID}" = ""]?Set(realDID=UNKNOWN))

 same => n,NoOp(Extracted DID: ${realDID}, Caller ID: ${CALLERID_INFO})

 same => n,Dial(SIP/GATEWAY/${realDID})

 same => n,Hangup()

[GATEWAY]

exten => _X.,1,NoOp(Outgoing call from GATEWAY)

exten => _X.,n,Set(CALLERID(num)="+917926468124")

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

exten => _X.,n,Hangup()