Why do you think they breaks RFC? It depents on UA implementation how to
handle reInvite.
Maybe ask your provider use another keep-alive method like UPDATE without
SDP.
regards,
Gang
On Wed, Jun 24, 2009 at 11:19 PM, Mark Webster
<mark.webster+pjsip at gmail.com<mark.webster%2Bpjsip at gmail.com>
> wrote:
> Hello list,
>
> We have a problem here with metaswitch sending my app a reinvite every 15
> minutes. The problem is, they send an SDP offer in the reinvite, but if they
> don't receive an SDP body back in the 200 OK reply, they hang up. As far as
> I know, this breaks RFC compliance, but they're not going to change
> anything.
>
> So, what's the correct way to force an SDP in the reply? I've set up an
> on_rx_offer() callback, and I tried to do something like this:
>
> void call_on_rx_offer(pjsip_inv_session *inv, const pjmedia_sdp_session
> *offer) {
> pj_status_t status;
> const pjmedia_sdp_session *active_local;
> pjmedia_sdp_neg_get_active_local(inv->neg, &active_local);
> status = pjsip_inv_set_sdp_answer(inv, active_local);
> }
>
> But this causes pjsip to try to re-attach the transport again, causing an
> assert.
>
> What's the "correct" way to go about this?
>
> Thanks in advance!
> -Mark
>
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