I'm doing something similar, although not for payment. I add a header
to the INVITE message by setting the message data to
pjsua_call_make_call. Something like this:
hname = pj_str("X-MyHeader");
std::string listr("MyValue");
pj_cstr(&hvalue, listr.c_str());
pjsip_generic_string_hdr_init2(&hdr1, &hname, &hvalue);
pj_list_push_back(&md.hdr_list, &hdr1);
status = pjsua_call_make_call(current_acc, &dialString, 0, NULL,
&md, &id);
Then in Asterisk, just read the header with ${SIP_HEADER(X-MyHeader)}
This works quite well.
Norman Franke
ASD, Inc.
www.myasd.com
On Sep 26, 2007, at 7:57 AM, Hitesh Tewari wrote:
>
> Hello,
>
> We would like to carry some proprietary payment info in our initial
> INVITE message from the client to the proxy.
> To do the same we are considering using one of the unused SDP
> fields or creating one of our own and
> transporting the info within the same.
>
> As we need to send the payment info periodically we are planning on
> making use of the UPDATE or re-INVITE
> methods and sending an updated SDP to the proxy. At the proxy end
> we intend to make use of
> an Asterisk server and be able to extract out the payment info
> field before forwarding the INVITE or UPDATE.
>
> My question is that would this be a reasonable thing to do in PJSIP
> and Asterisk?
> Any guidance from you would be greatly appreciated. Many thanks for
> your time.
>
>
> Hitesh
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