[Serusers] phone + pstn with ser and cisco gateway

[Greger V. Teigre]

Would nat_uac_test("16") help?
>From nathelper.c:
 2004-09-30   added received port != via port test (andrei)

        /* test if the source port is different from the port in Via */
        if ((tests & NAT_UAC_TEST_RPORT) &&
                 (msg->rcv.src_port!=(msg->via1->port?msg->via1->port:SIP_PORT)) 
 ){
                return 1;
        }

This test only checks if the ports are different. If they are, the other 
tests are not run.
AFAIK, nat_uac_test("2) together with nat_uac_test("16") will give you 
client_nat_test("3")
(However, I'm not familiar with the mediaproxy code)
g-)


Juha Heinanen wrote:
> Steve Blair writes:
>
>>    I've never looked into that but by default it does not. I thought
>> I would need "symmtric signaling" in order to define a peer in my
>> Asterisk sip.conf file but that turned out not to be necessary.
>
> i was asking because of nat detection.  it turned out that nathelper
> nat_uac_test("3") does not check port number whereas mediaproxy
> client_nat_test("3") requires that both ip address and port in via
> match source ip address and port.  so if call comes from cisco gw, ...
>
> i surfed on cisco's web pages, but could not find any command that
> would make gw's signaling symmetric.
>
> -- juha
>
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