Hi Satish,

It is an known issue that OpenSIPS does not increases the cseq number when performing UAC auth against another party. Asterisk does not like that and consider the new branch INVITE with credentials a simple retransmission (even if it has a different VIA-branch :P) and discards them - this is why you get that timeout from asterisk.

We have ongoing work (hopefully to be ready in 1-2 weeks) for increasing the cseq number is a sip-wise manner. Just keep an eye on the mailing list.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 25.08.2014 04:47, Satish Patel wrote:
I am seeing following and all transaction has CSeq: 2 INVITE, I have notice one thing asterisk asking for 407 but opensips never send any challenge response

Opensips ---> INVITE ---> Asterisk
Asterisk -----> 407 ------> Opensips (Proxy-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="3a710e79".)
Opensips ----> ACK -----> Asterisk

Here opensips challenging SIP client and saying giving try to asterisk and then following

Opensips ----> INVITE ---> Asterisk
Opensips ----> INVITE ----> Asterisk
Opensips ----> INVITE ----> Asterisk

After 3 tries opensips send SIP client 408 Request timeout..


On Sun, Aug 24, 2014 at 4:26 PM, Stefano Pisani <[email protected] <mailto:[email protected]>> wrote:

    Check if the cseq was incremented by one in the second try.
    Use ngrep.



    Il 24/08/2014 22.24, Satish Patel ha scritto:

    Hi,

    my Opensips (UAC) registered to PSTN gateway and now i am trying
    to call using my SIPphone which is register to opensip but no
    success. I am getting 407 Proxy authentication issue..  I am
    using following method but it didn't work. I need solution badly..

    PSTN gateway sending 407 Proxy auth and then my Opensip sending
    407 proxy auth to SIP phone.

    Does anyone has any working example or some kind of document? I
    haven;t see any single doc anywhere in Internet about uac_auth  issue



    modparam("uac","credential","username:domain:password")

    route {
    ....
            t_on_failure("2");
            t_relay( "udp:ip_addr:5060" );
    ...
    }

    failure_route[2] {
          uac_auth();
          t_relay("udp:ip_addr:5060");
    }


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