====== sendSIPRawInfo() ======
call.sendSIPRawInfo() is used to send SIP INFO messages.

===== Arguments =====
call.sendSIPRawInfo(content_type, content)
  * content_type - content-type according to [[https://tools.ietf.org/html/rfc6086|SIP INFO specifications]]
  * content - content according to [[https://tools.ietf.org/html/rfc6086|SIP INFO specifications]]

===== Returns =====
Nothing.

===== Events =====
call.sendSIPRawInfo() does not raise any events, but on the receiving side [[ixnx:wrtc:js:api:wrtc:onsiprawinfo|wrtc.onSIPRawInfo()]] event will occur upon reception of a SIP INFO message.

===== Example =====
To send a long (1 second) DTMF code 1 outband as a SIP INFO message:
  call.sendSIPRawInfo("application/dtmf-relay", "Signal=1\\r\\nDuration=1000");