simplesendingexample.cxx

SIP（Session Initiation Protocol）是由IETF定义

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static const char* const SimpleSendingExample_cxx_Version =
    "$Id: SimpleSendingExample.cxx,v 1.2.24.1 2003/02/07 19:21:57 sprajpat Exp $";

#include "VovidaSipStack.hxx"
#include "InviteMsg.hxx"
#include "SipSdp.hxx"
#include "SipSubject.hxx"

using namespace Vocal;
using namespace Vocal::SDP;


int main(int argc, char** argv)
{
    // here is the SIP stack for this message.  the argument is the
    // SIP port for this program.

    Sptr<SipTransceiverFilter> sipStack = new SipTransceiverFilter(argv[0], 5060);

    // construct a SIP URL for the message.
    Sptr<SipUrl> toUrl = new SipUrl(Data("sip:[e-mail]"));

    // construct a simple SIP INVITE .
    InviteMsg msg( toUrl );

    // here is an example of setting a field on a SIP message

    SipSubject subject;
    subject.set("New call");
    msg.setSubject(subject);

    // here is a more complex example.  In this example, we will set
    // the Display Name and From URL in the From: line of this message.

    SipFrom from = msg.getFrom();
    // now, set the display name
    from.setDisplayName( "Bob Smith" );

    // now, create and set the From URL

    Sptr<SipUrl> fromUrl = new SipUrl(Data("sip:[e-mail]"));
    from.setUrl( fromUrl );

    // now, you must set the from in the message to the contents of from
    msg.setFrom(from);

    // in this example, we will set the SDP body of this INVITE .

    // sdp will point to the SDP body in the message.  if we change
    // sdp, we change the SDP contents of the body.

    Sptr<SipSdp> sdp;
    sdp.dynamicCast( msg.getContentData(0) );

    // when you construct an INVITE by passing a URL, the INVITE
    // constructed should contain an SDP body already.  we have gotten
    // it in sdp -- if it is not there, or it is not an SDP body, this
    // assert would fail, but this should never happen.

    assert (sdp != 0) ;

    // set the RTP port to 6000 .
    sdp->setRtpPort(6500);

    // now, we will send the INVITE message

    sipStack->sendAsync(msg);
    sipStack = 0;
    return 0;
}