void B2BUserAgent::Registrar::ProcessUpperRegKeepAlive()
{
while( !m_UpperRegSync.Wait( 250 ) )
{
OString testRequest =
"INVITE sip:5435155555@192.168.0.5:5060 SIP/2.0\r\nContact:
\r\nCSeq: 101 INVITE\r\nFrom:
;tag=5A3745C-2418\r\nTo:
\r\nVia: SIP/2.0/UDP
192.168.0.206:5060;branch=z9hG4bK63028de3a6b7743a\r\nVia: SIP/2.0/UDP
192.168.0.10:5060\r\nRecord-Route:
\r\nAllow: INVITE, OPTIONS, BYE, CANCEL,
ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO\r\nUser-Agent:
Cisco-SIPGateway/IOS-12.x\r\nCall-Id:
3738EB25-278011DD-B92F90A6-C0EF6BE3@192.168.0.10\r\nMax-Forwards
:
6\r\nExpires: 180\r\nContent-Length: 235\r\ndate: Thu, 22 May 2008
21:52:32 GMT\r\nsupported: timer\r\nmin-se: 1800\r\ncisco-guid:
926237238-662704605-3106705574-3236916195\r\nremote-party-id:
;party=calling;screen=no;privacy=off\r\ntimestamp:
1211493152\r\nallow-events: telephone-event\r\ncontent-type:
application/sdp\r\n\r\nv=0\r\no=CiscoSystemsSIP-GW-UserAgent 7402 717
IN IP4 192.168.0.10\r\ns=SIP Call\r\nc=IN IP4 192.168.0.10\r\nt=0
0\r\nm=audio 19298 RTP/AVP 0 19\r\nc=IN IP4 192.168.0.10\r\na=rtpmap:0
PCMU/8000\r\na=rtpmap:19 CN/8000\r\na=ptime:20";
testRequest = ParserTools::LineFeedSanityCheck( testRequest );
SIPMessage * msg = new SIPMessage( testRequest );

OString addrStr = "192.168.0.147";
OString portStr = "10000";
SIPHeader rcvAddr( "RCVADDR", addrStr );
SIPHeader rcvPort( "RCVPORT", portStr );
SIPHeader rcvTran( "RCVTRAN", "udp" );

msg->AddInternalHeader( rcvAddr );
msg->AddInternalHeader( rcvPort );
msg->AddInternalHeader( rcvTran );
msg->SetInterfaceAddress( "192.168.0.202" );
msg->SetInterfacePort( 5070 );

OStringStream traceStream;

traceStream << "<<< "
GetStartLine() << " "
<< " SRC: " << addrStr << ":" << portStr << ":UDP"
<< " enc=" IsEncrypted()
<< " bytes=1103";

OStringStream strPacket;
strPacket > COMPOUND_LOG_CONTEXT( LogInfo(), msg->GetCallId(),
traceStream.str(), LogDebugHigh(), strPacket );

SIPTransport::NotifyRead( traceStream.str() );

if( msg->IsInvite() )
{
SIPMessage * trying = new SIPMessage();
msg->CreateResponse( *trying, SIPMessage::Code100_Trying );
Via via;
msg->GetViaAt(0, via );
if( via.IsBehindNAT() )
{
SIPURI srcURI;
srcURI.SetHost(addrStr);
srcURI.SetPort(portStr);
trying->SetSendAddress(srcURI);
}
if( msg->IsEncrypted() )
trying->SetEncryption( TRUE );
GetTransportManager()->ProcessOutbound( trying );
}

GetTransportManager()->OnTransportEvent(
new SIPTransportEvent(
msg,
SIPTransportEvent::UDPPacketArrival
) );

/*///process the keep alives here
for( PINDEX i = 0; i > {
SIPMessage reg;
if( GetRegistrationDB().GetRegistration( i, reg ) )
{
if( reg.HasInternalHeader( "upper-reg" ) )
{
/// this is an upper reg, send a keep-alive
/// Check the last via if its from a private IP
Via via;
if( reg.GetViaAt( reg.GetViaSize() - 1, via ) )
{
if( via.IsBehindNAT() )
{
SIPURI target;
target.SetHost( via.GetReceiveAddress().AsSTLString() );
target.SetPort( via.GetRPort() );
SIPMessage keepAlive;
RequestLine requestLine;
requestLine.SetMethod( "KEEP-ALIVE" );
requestLine.SetRequestURI( target );
keepAlive.SetStartLine( requestLine );
GetUserAgent().TransportWrite( keepAlive );
}
}
}
}
}*/
}
}

The OpenSBC is in "Proxy Only Mode" and the configuration is in
"OpenSBC.reg" (attached).

I compile the OpenSBC in Microsoft Visual C++ 2005 obtaining the exe
attached.

Any idea?

Thanks for your help.

Gustavo