Tried with pjsua_vc8d.exe, the demo provided in "pjsua" project, the
same problem found.
On Wed, Nov 12, 2008 at 6:03 PM, Peter Cai <newptcai at gmail.com> wrote:
> Hi all,
>
> I'm testing PJSIP with TCP transport, with windows mesenger.
>
> The environment is like this
>
>
> PJ <-----TCP-----> PROXY <---------TCP-----------> Windows Messenger. (WM)
>
> I used the example "simple_pjsua.c" from PJ's web site:
>
> file:///E:/Software/Sites/pjsip_pjsip_docs_html/www.pjsip.org/pjsip/docs/html/page_pjsip_sample_simple_pjsuaua_c.htm
>
>
> Modified 2 lines to use TCP.
>
> << status = pjsua_transport_create(PJSIP_TRANSPORT_UDP, &cfg, NULL);
>
>>> status = pjsua_transport_create(PJSIP_TRANSPORT_TCP, &cfg, NULL);
>
> << cfg.reg_uri = pj_str("sip:" SIP_DOMAIN ";transport=tcp");
>
>>> cfg.reg_uri = pj_str("sip:" SIP_DOMAIN ";transport=tcp");
>
>
> According to the packages I captured, the process is:
>
> 1. PJ register with port 5060
> 2. PJ changed to register with a random selected port, 39122 e.g.,
> and un-register port 5060
> 3. PJ answer INVITE with 200 OK, with port 39122 in CONTACT header.
> 4. WM tries to connect to port 39122, but failed. So ACK could not be sent!
>
> PJ is not listening on 39122, but wrongly using it in CONTACT header of 200 OK.
>
> If further information needed. I can provide captured packages.
>
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