Hi Ha`,

The excerpt from your script shows that you don't have a good understanding of the opensips scripting logic. First, the *route* block will only be called for SIP Requests.
Calling this is not right:
 /           if(status=="200")
                       route("b2b_reply");

/The replies will go into reply route blocks. You can have a default reply route ( one without an index or with index 0), or you can specify a certain reply route for a request by calling t_on_reply.

Second, you don't understand what happens with b2b request and replies. It is explained in the documentation:

/The requests and replies that are received by the B2BUA server, belonging to the dialogs it is handling will not go into the script as normal request do. The reason for this is that this are not normal requests where the server is a proxy, but the server is an endpoint in the dialog and therefore they should not go through the same routes. However, it is normal for this request to be seen from the script and allow the script writer to do the processing it desires based on them. For this, it is possible to define two special B2B routes - one for requests and one for replies. The routes are of type *route* and have their name defined in the modules parameters *script_req_route* and *script_reply_route*. /

In other words, there are two important things:
1. the B2B requests/replies will not go into the default request/reply route block. 2. the b2b_request/b2_reply route will be called automatically for every request/reply targeted to the b2b agent

So, for your script, you don't need this lines:

  /  if(is_method("INVITE")) {
               route("b2b_request");
               t_on_reply("2");
       }
       else
               if(status=="200")
                       route("b2b_reply");/

Hope this made things a bit clearer.

Regards,

--
Anca Vamanu
www.voice-system.ro


ha do wrote:
HI Anca

i am trying to use the b2b_request + b2b_reply

route{
...
if(is_method("INVITE") &&  !(src_ip == 192.168.1.249 && src_port ==5060))
        {
                if (! t_newtran()){
                        sl_reply_error();
                        exit;
                };

                b2b_init_request("top hiding");
                exit;
        };
....
route("1");
}
route[1] {
        if(is_method("INVITE")) {
                route("b2b_request");
                t_on_reply("2");
        }
        else
                if(status=="200")
                        route("b2b_reply");
        if (!t_relay()) {
                sl_reply_error();
        };
        exit;
}
route[b2b_request] {
  xlog("b2b_request cucku ($ci)\n");
        force_rtp_proxy();
}
route[b2b_reply] {
  xlog("b2b_reply cucku ($ci)\n");
        force_rtp_proxy();
}

i get the errors : ERROR:nathelper:force_rtp_proxy: Unable to parse body
and
DBG:tm:utimer_routine: timer routine:4,tl=0xb615e9a8 next=(nil), timeout=29000000 DBG:tm:timer_routine: timer routine:3,tl=0xb615c6f4 next=(nil), timeout=29
 DBG:tm:delete_handler: removing 0xb615c690
DBG:tm:delete_cell: delete_cell 0xb615c690: can't delete -- still reffed (1)


=======
 DBG:core:get_hdr_field: cseq <CSeq>: <2> <INVITE>
 DBG:core:parse_headers: flags=8
 DBG:tm:t_reply_matching: hash 21530 label 76806763 branch 0
 DBG:tm:t_reply_matching: REF_UNSAFE: after is 2
 DBG:tm:t_reply_matching: reply matched (T=0xb615e85c)!
 DBG:tm:t_check: end=0xb615e85c
 DBG:tm:reply_received: org. status uas=0, uac[0]=100 local=2 is_invite=1)
 DBG:tm:t_should_relay_response: T_code=0, new_code=180
 DBG:tm:local_reply: branch=0, save=0, winner=0
 DBG:tm:local_reply: Passing provisional reply 180 to FIFO application
DBG:tm:run_trans_callbacks: trans=0xb615e85c, callback type 1024, id 0 entered
 DBG:b2b_entities:b2b_parse_key: hash_index = [111]  - local_index= [0]
 DBG:core:parse_headers: flags=ffffffffffffffff
 DBG:core:get_hdr_field: content_length=0
 DBG:core:get_hdr_field: found end of header
 DBG:b2b_entities:b2b_tm_cback: Received a reply with statuscode = 180
 DBG:core:parse_headers: flags=ffffffffffffffff
DBG:b2b_entities:b2b_new_dlg: 'To' header ALREADY PARSED: <sip:1...@192.168.1.249>
 DBG:b2b_entities:b2b_new_dlg: Not an initial request
 DBG:core:parse_to_param: tag=bfad35cdb22f09f741816636d344f54b-19f0
 DBG:core:parse_to: end of header reached, state=29
DBG:core:parse_to: display={}, ruri={sip:0873000...@192.168.1.249;user=phone}
 DBG:core:print_rr_body: current rr is <sip:192.168.1.249;lr=on>
 DBG:core:print_rr_body: out rr [<sip:192.168.1.249;lr=on>]
 DBG:core:print_rr_body: we have 1 records
 DBG:b2b_entities:b2b_tm_cback: Created new dialog structure 0xb61618c0
 DBG:core:print_rr_body: current rr is <sip:192.168.1.249;lr=on>
 DBG:core:print_rr_body: out rr [<sip:192.168.1.249;lr=on>]
 DBG:core:print_rr_body: we have 1 records
 DBG:b2b_logic:b2bl_parse_key: hash_index = [623]  - local_index= [0]
 DBG:core:parse_headers: flags=ffffffffffffffff
 DBG:b2b_entities:b2b_parse_key: hash_index = [346]  - local_index= [0]
 DBG:core:parse_headers: flags=ffffffffffffffff
 DBG:core:check_ip_address: params 192.168.1.4, 192.168.1.4, 0
 DBG:tm:t_reply_with_body: buffer computed
DBG:tm:_reply_light: reply sent out. buf=0x81c70b8: SIP/2.0 1..., shmem=0xb615e534: SIP/2.0 1
 DBG:tm:_reply_light: finished
 b2b_reply cucku (B2B.111.0.1262765386)
 DBG:core:parse_headers: flags=ffffffffffffffff
 DBG:core:parse_headers: flags=1000
 DBG:core:parse_content_type_hdr: missing Content-Type header
 ERROR:nathelper:force_rtp_proxy: Unable to parse body

Thank you
Ha`
--- On *Mon, 1/4/10, Anca Vamanu /<a...@opensips.org>/* wrote:


    From: Anca Vamanu <a...@opensips.org>
    Subject: Re: [OpenSIPS-Users] need advice on B2b
    To: "OpenSIPS users mailling list" <users@lists.opensips.org>
    Date: Monday, January 4, 2010, 3:04 AM

    Hi Ha`,

    There is a very simple example in the documentation:

    route[b2b_request] {
      xlog("b2b_request ($ci)\n");
    }


    route[b2b_reply] {
      xlog("b2b_reply ($ci)\n");
    }


    You can call in these routes any function that you call in a
    request route.

    Regards,

-- Anca Vamanu
    www.voice-system.ro


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