[reSIProcate] how to send reINVITE with DUM ?

[Daniel Pocock]

Diego Susa wrote:

> Hi:
> I'm trying to make a little example program that implements the "Flow 
> IV" section in RFC3725 (3pcc).
> The problem is that I can't find a way to send the reINVITE  properly 
> (message number 6 in Figure 4).
> I've found no place in DUM docs, wikis, forums, etc which tells me how 
> to send a reINVITE from a UAC.
> I've tried these 2 approaches:
> 1) sending the INVITE and reINVITE to client "A" as in the basicCall 
> example in /dum/test:
> dumC1->send(dumC1->makeInviteSession(client1Aor, 0, new 
> b2buaAppDialogSet(*dumC1, "Client1(INVITE)")));
> This way doesn't work because client "A" thinks the reINVITE is a 
> "new" invite, and tells me the softphone is "busy" with the first one.
> 2) making a copy of the first INVITE, the SipMessage created by the 
> makeInviteSession() call. Then "sending" this SipMessage as reINVITE. 
> I manually set the SDP content of client "B" as the RFC indicates, and 
> also incrementes the CSeq number of the original message.
> This way doesn't work, the example program asserts at 
> InviteSession.cxx:1515, telling that "DUM delivered a INVITE to the 
> InviteSession". The message traced at this point is: 481 Call 
> Leg/Transaction Does Not Exist.
>
> Could anyone give me a hint about sending reINVITEs with DUM ?
> thanks in advance....
> Diego

Hi Diego,

Have you tried using InviteSession::provideOffer()?

Regards,

Daniel


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