How to get DID number for incoming call?
If you need to send DID number to 3-rd party system, you can use the %HEADER1%, %HEADER2%, %HEADER3%, etc. named placeholders on event handler settings window:
The %HEADER1% named placeholder extracts specified SIP header value from INVITE message for the incoming calls only. Please specify the valid header name in brackets to extract its value with %HEADER1% placeholder:
http://example.com?did=%HEADER1%(P-Asserted-Identity)
If you need to get several SIP INVITE header values, then use %HEADER2%, %HEADER3%, etc. named placeholders:
http://example.com?did=%HEADER1%(P-Asserted-Identity)&callid=%HEADER2%(Call-ID)
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