SIP Message With Public IP?

[srivatsan.d]

Hi,

I am using s60 3rd ed. phone for developing a VOIP application.
The application also have Instant messaging function and i have my own SIP server using JAIN-SLEE.

When i run the server in LAN, everything works fine(Registration, Invite and Messaging.

My problem is,

1. When i moved the server to a public IP(static IP), only the registration and invite is working. Messaging doesn't reach server itself.
My initial assumption was because of some firewall the problem could be, but registration and invite works fine and so my assumption is wrong.

2. What could be the problem when moving to Public IP? is their any thing additionally added to messaging?

I am posting my messaging code here, please someone let me know if any additional things to be taken in account.

void CSIPIMEngine::SendInstantMessageL(const TDesC8& aMessage,
const TDesC8& aSipUri)
{
_LIT8 ( KMediaType, "text" );
_LIT8 ( KMediaSubType, "plain" );

CSIPRequestElements* reqElem = CreateReqElementsL(aSipUri);
CleanupStack::PushL(reqElem);

CSIPToHeader* toHeader = CreateToHeaderL(aSipUri);
CleanupStack::PushL(toHeader);
reqElem->SetToHeaderL(toHeader);

CleanupStack::Pop(toHeader);

const TDesC8* aor = NULL;
iProfile->GetParameter(KSIPUserAor, aor);
__ASSERT_ALWAYS ( aor && *aor != KNullDesC8, User::Leave ( KErrNotFound ) );
CSIPAddress* addr = CSIPAddress:ecodeL(*aor);
CleanupStack::PushL(addr);

CSIPFromHeader* fromHeader = CSIPFromHeader::NewL(addr);
CleanupStack::Pop(addr);
CleanupStack::PushL(fromHeader);
reqElem->SetFromHeaderL(fromHeader);
CleanupStack::Pop(fromHeader);

reqElem->SetMethodL(SIPStrings::StringF(SipStrConsts::EMessage));
CSIPMessageElements& msgElem = reqElem->MessageElements();
CSIPContentTypeHeader* ct = CSIPContentTypeHeader::NewLC(KMediaType,
KMediaSubType);
msgElem.SetContentL(aMessage.AllocL(), ct);

CleanupStack::Pop(ct);

CSIPConnection& conn = ConnectionL();

if (conn.State() == CSIPConnection::EActive && reqElem->FromHeader() != 0)
{
CSIPClientTransaction* clientTx = conn.SendRequestL(reqElem);
//CleanupStack::Pop(reqElem);
delete clientTx;
}
}

Thanks,
Srivatsan

[wizard_hu_]

1. When i moved the server to a public IP(static IP), only the registration and invite is working. Messaging doesn't reach server itself.
My initial assumption was because of some firewall the problem could be, but registration and invite works fine and so my assumption is wrong.

That initial assumption is not necessarily wrong, if IM function is provided by an external AS, it may work on a different set of ports than the SIP functions.

[srivatsan.d]

That initial assumption is not necessarily wrong, if IM function is provided by an external AS, it may work on a different set of ports than the SIP functions.

Thanks wizard_hu_,

I am using device default profile(under settings->connection->SIP Settings) in which i set port as 5060, in same port the server is also running.

Also is their any port we need to set in code for IM? Can you please explain me detail / any doc. for IM. I have posted my code here...

Please let me know how to sort this problem.

Regards,
Srivatsan

[wizard_hu_]

Unfortunately I am also a beginner with SIP. A thing you can try is monitoring network traffic (in the local network-case), and see if some ports are explicitly negotiated (since most negotiations are done in ASCII).
But this approach may be a bit overkill indeed.

[srivatsan.d]

Thanks wizard_hu_.

Please let me know if you come across same problem and a solution for that. I'll also let all to know if i break this problem.

Also looking for the other who faced same issue and got a solution for that.

Thanks,
Srivatsan