public SIPRequest GetInviteRequest(string inviteURIStr, string fromURIStr, string body, int rtpPort)
{
SIPURI inviteURI = (inviteURIStr.StartsWith("sip:")) ? SIPURI.ParseSIPURI(inviteURIStr) : SIPURI.ParseSIPURI("sip:" + inviteURIStr);
SIPFromHeader fromHeader = SIPFromHeader.ParseFromHeader(fromURIStr); // (fromURIStr.StartsWith("sip:")) ? SIPFromHeader.ParseFromHeader(fromURIStr) : SIPFromHeader.ParseFromHeader("sip:" + fromURIStr);
SIPToHeader toHeader = new SIPToHeader(null, inviteURI, null);
SIPRequest inviteRequest = new SIPRequest(SIPMethodsEnum.INVITE, inviteURI);
IPEndPoint localSIPEndPoint = m_sipTransport.GetIPEndPointsList()[0];
SIPHeader inviteHeader = new SIPHeader(fromHeader, toHeader, 1, CallProperties.CreateNewCallId());
inviteHeader.From.FromTag = CallProperties.CreateNewTag();
inviteHeader.Contact = SIPContactHeader.ParseContactHeader("sip:" + localSIPEndPoint.ToString());
inviteHeader.CSeqMethod = SIPMethodsEnum.INVITE;
//inviteHeader.UnknownHeaders.Add("BlueFace-Test: 12324");
inviteRequest.Header = inviteHeader;
SIPViaHeader viaHeader = new SIPViaHeader(localSIPEndPoint.Address.ToString(), localSIPEndPoint.Port, CallProperties.CreateBranchId());
inviteRequest.Header.Via.PushViaHeader(viaHeader);
rtpPort = (rtpPort != 0) ? rtpPort : Crypto.GetRandomInt(10000, 20000);
string sessionId = Crypto.GetRandomInt(1000, 5000).ToString();
if (body != null && body.Trim().Length > 0)
{
inviteRequest.Body = body;
}
else
{
inviteRequest.Body =
"v=0" + CRLF +
"o=- " + sessionId + " " + sessionId + " IN IP4 " + localSIPEndPoint.Address.ToString() + CRLF +
"s=session" + CRLF +
"c=IN IP4 " + localSIPEndPoint.Address.ToString() + CRLF +
"t=0 0" + CRLF +
"m=audio " + rtpPort + " RTP/AVP 0 101" + CRLF +
"a=rtpmap:0 PCMU/8000" + CRLF +
"a=rtpmap:101 telephone-event/8000" + CRLF +
"a=fmtp:101 0-16" + CRLF +
"a=sendrecv";
}
inviteRequest.Header.ContentLength = inviteRequest.Body.Length;
inviteRequest.Header.ContentType = "application/sdp";
return(inviteRequest);
}