(gdb) bt
#0  0xb7304a1c in t_uac (method=0xb7286498, headers=0x0, body=0x0, dialog=0x81a85d0, cb=0, cbp=0x0, release_func=0) at ../../mem/../hash_func.h:56
#1  0xb73062c3 in req_within (method=0xb7286498, headers=0x0, body=0x0, dialog=0x81a85d0, completion_cb=0, cbp=0x0, release_func=0) at uac.c:396
#2  0xb7279340 in b2b_send_req (dlg=0x38dfc8f0, leg=0x81a850c, method=0xb7286498, extra_headers=0x0) at dlg.c:1701
#3  0xb72803b6 in b2b_tm_cback (t=0x38d4db80, htable=0x37285f28, ps=0xb73108d4) at dlg.c:1983
#4  0xb7273fd2 in b2b_client_tm_cback (t=0x38d4db80, type=512, ps=0xb73108d4) at client.c:44
#5  0xb72eb924 in run_trans_callbacks (type=512, trans=0x38d4db80, req=0x0, rpl=0x81a5088, code=200) at t_hooks.c:208
#6  0xb73026f6 in local_reply (t=0x38d4db80, p_msg=0x81a5088, branch=0, msg_status=200, cancel_bitmap=0xbfd1a6e0) at t_reply.c:1350
#7  0xb7303a39 in reply_received (p_msg=0x81a5088) at t_reply.c:1495
#8  0x080678c2 in forward_reply (msg=0x81a5088) at forward.c:559
#9  0x080986bb in receive_msg (
    buf=0x81783a0 "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP 217.36.90.52;branch=z9hG4bKa672.4df87e96.0\r\nFrom: <sip:13053577239@8.20.212.240>;tag=6d0a496ae253b92ea43eeacbb0d408bd\r\nTo: sip:15055369524@67.228.15.154;tag=1cc81d203d"..., 
    len=681, rcv_info=0xbfd1a804) at receive.c:200
#10 0x080d9ba4 in udp_rcv_loop () at udp_server.c:492
#11 0x0806ea79 in main (argc=9, argv=0xbfd1a9a4) at main.c:818
(gdb) bt full
#0  0xb7304a1c in t_uac (method=0xb7286498, headers=0x0, body=0x0, dialog=0x81a85d0, cb=0, cbp=0x0, release_func=0) at ../../mem/../hash_func.h:56
        to_su = {s = {sa_family = 2, sa_data = "\023#####17\232\000\000\000\000\000\000\000"}, sin = {sin_family = 2, sin_port = 50195, sin_addr = {s_addr = 2584732739}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {
    sin6_family = 2, sin6_port = 50195, sin6_flowinfo = 2584732739, sin6_addr = {in6_u = {u6_addr8 = '\0' <repeats 15 times>, u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}
        new_cell = (struct cell *) 0x38612d50
        backup = <value optimized out>
        buf = <value optimized out>
        buf1 = <value optimized out>
        buf_len = <value optimized out>
        buf_len1 = <value optimized out>
        ret = <value optimized out>
        flags = <value optimized out>
        backup_route_type = <value optimized out>
        hi = <value optimized out>
        send_sock = <value optimized out>
        req = (struct sip_msg *) 0x0
        __FUNCTION__ = "t_uac"
#1  0xb73062c3 in req_within (method=0xb7286498, headers=0x0, body=0x0, dialog=0x81a85d0, completion_cb=0, cbp=0x0, release_func=0) at uac.c:396
        __FUNCTION__ = "req_within"
#2  0xb7279340 in b2b_send_req (dlg=0x38dfc8f0, leg=0x81a850c, method=0xb7286498, extra_headers=0x0) at dlg.c:1701
        td = (dlg_t *) 0x0
        result = <value optimized out>
        __FUNCTION__ = "b2b_send_req"
#3  0xb72803b6 in b2b_tm_cback (t=0x38d4db80, htable=0x37285f28, ps=0xb73108d4) at dlg.c:1983
        hash_index = 2967
        local_index = 6273744
        b2b_cback = (b2b_notify_t) 0xb7264efb <b2b_client_notify>
        dlg = (b2b_dlg_t *) 0x38dfc8f0
        param = {s = 0x81a7f14 "2967.0", len = 6}
        statuscode = 200
        leg = (dlg_leg_t *) 0x81a850c
        pto = <value optimized out>
        TO = {error = 135933872, body = {s = 0x81a5088 "\204\a", len = 0}, uri = {s = 0xb72ca73d "\205##017\210\234\002", len = -1076779884}, display = {s = 0x81a5510 "\026\204\027\b ", len = 0}, tag_value = {
    s = 0x1 <Address 0x1 out of bounds>, len = 135642404}, parsed_uri = {user = {s = 0x0, len = 135953952}, passwd = {
      s = 0x8178504 "NVITE, ACK, CANCEL, BYE, OPTIONS, INFO, UPDATE\r\nContent-Length: 223\r\nContent-Type: application/sdp\r\n\r\nv=0\r\no=- 22283 22283 IN IP4 67.228.15.154\r\ns=VOS2009\r\nc=IN IP4 67.228.15.154\r\nt=0 0\r\nm=audio 13558"..., len = 135954348}, host = {s = 0x81a5510 "\026\204\027\b ", len = 135944296}, port = {s = 0x81012f2 "f\211G.\213]####5##017\204#####$#\025\b\2038#\017\214\236####2135(#\025\b\205####7\204Z\025", len = 135896160}, 
    params = {s = 0x20 <Address 0x20 out of bounds>, len = 135955408}, headers = {s = 0x81a81d8 "^\204\027\b\020", len = 135758937}, port_no = 59, proto = 0, type = 3218187528, transport = {
      s = 0x80f800d "\211\205P###\205##017\204##t", len = 135896160}, ttl = {s = 0x18 <Address 0x18 out of bounds>, len = -1}, user_param = {s = 0xffffffff <Address 0xffffffff out of bounds>, len = 0}, maddr = {
      s = 0x8178506 "ITE, ACK, CANCEL, BYE, OPTIONS, INFO, UPDATE\r\nContent-Length: 223\r\nContent-Type: application/sdp\r\n\r\nv=0\r\no=- 22283 22283 IN IP4 67.228.15.154\r\ns=VOS2009\r\nc=IN IP4 67.228.15.154\r\nt=0 0\r\nm=audio 13558 R"..., len = 135759075}, method = {s = 0x0, len = 135944164}, lr = {s = 0x81a7e2c "### len = 0}, r2 = {s = 0x81a7ec4 "\001", len = 135759255}, transport_val = {s = 0x8178899 "", len = -1076779896}, ttl_val = {
      s = 0xd <Address 0xd out of bounds>, len = 135758960}, user_param_val = {
      s = 0x8178459 ";tag=1cc81d203d4db145\r\nServer: VOS2009 V2.1.1.5\r\nCSeq: 5277455 INVITE\r\nCall-ID: B2B.2967.6273744\r\nContact: <sip:15055369524@67.228.15.154:5060>\r\nMax-Forwards: 70\r\nAllow: INVITE, ACK, CANCEL, BYE, OPTI"..., len = 0}, maddr_val = {s = 0xa <Address 0xa out of bounds>, len = 135896160}, method_val = {s = 0xd1a83dc <Address 0xd1a83dc out of bounds>, len = 3}, lr_val = {
      s = 0x817873a "h:  260\r\nContent-Disposition: session; handling=optional\r\nContent-Type: application/sdp\r\n\r\nv=0\r\no=Sonus_UAC 24737 19600 IN IP4 76.10.220.4\r\ns=SIP Media Capabilities\r\nc=IN IP4 76.10.220.7\r\nt=0 0\r\nm=aud"..., len = 1744830464}, r2_val = {s = 0x8178617 "elephone-event/8000\r\na=fmtp:101 0-15\r\na=sendrecv\r\n", len = 1947893412}}, param_lst = 0x8178899, last_param = 0x8178899}
        to_tag = {
  s = 0x817845e "1cc81d203d4db145\r\nServer: VOS2009 V2.1.1.5\r\nCSeq: 5277455 INVITE\r\nCall-ID: B2B.2967.6273744\r\nContact: <sip:15055369524@67.228.15.154:5060>\r\nMax-Forwards: 70\r\nAllow: INVITE, ACK, CANCEL, BYE, OPTIONS, "..., len = 16}
        callid = {
  s = 0x81784a9 "B2B.2967.6273744\r\nContact: <sip:15055369524@67.228.15.154:5060>\r\nMax-Forwards: 70\r\nAllow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, UPDATE\r\nContent-Length: 223\r\nContent-Type: application/sdp\r\n\r\nv=0\r\no="..., len = 16}
        from_tag = {
  s = 0x8178416 "6d0a496ae253b92ea43eeacbb0d408bd\r\nTo: sip:15055369524@67.228.15.154;tag=1cc81d203d4db145\r\nServer: VOS2009 V2.1.1.5\r\nCSeq: 5277455 INVITE\r\nCall-ID: B2B.2967.6273744\r\nContact: <sip:15055369524@67.228.15"..., len = 32}
        hdr = <value optimized out>
        method_id = 1
        __FUNCTION__ = "b2b_tm_cback"
#4  0xb7273fd2 in b2b_client_tm_cback (t=0x38d4db80, type=512, ps=0xb73108d4) at client.c:44
No locals.
---Type <return> to continue, or q <return> to quit---
#5  0xb72eb924 in run_trans_callbacks (type=512, trans=0x38d4db80, req=0x0, rpl=0x81a5088, code=200) at t_hooks.c:208
        cbp = (struct tm_callback *) 0x385671e8
        backup = (struct usr_avp **) 0x81883a4
        trans_backup = (struct cell *) 0x38d4db80
        __FUNCTION__ = "run_trans_callbacks"
#6  0xb73026f6 in local_reply (t=0x38d4db80, p_msg=0x81a5088, branch=0, msg_status=200, cancel_bitmap=0xbfd1a6e0) at t_reply.c:1350
        local_store = 0
        local_winner = 0
        reply_status = RPS_COMPLETED
        winning_msg = (struct sip_msg *) 0x81a5088
        winning_code = <value optimized out>
        totag_retr = 0
        __FUNCTION__ = "local_reply"
#7  0xb7303a39 in reply_received (p_msg=0x81a5088) at t_reply.c:1495
        last_uac_status = <value optimized out>
        branch = 0
        reply_status = <value optimized out>
        timer = <value optimized out>
        cancel_bitmap = 0
        t = (struct cell *) 0x38d4db80
        backup_list = (struct usr_avp **) 0x8178649
        has_reply_route = <value optimized out>
        __FUNCTION__ = "reply_received"
#8  0x080678c2 in forward_reply (msg=0x81a5088) at forward.c:559
        new_buf = <value optimized out>
        to = <value optimized out>
        new_len = <value optimized out>
        mod = (struct sr_module *) 0x819e8bc
        proto = <value optimized out>
        id = <value optimized out>
        send_sock = <value optimized out>
        len = <value optimized out>
        __FUNCTION__ = "forward_reply"
#9  0x080986bb in receive_msg (
    buf=0x81783a0 "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP 217.36.90.52;branch=z9hG4bKa672.4df87e96.0\r\nFrom: <sip:13053577239@8.20.212.240>;tag=6d0a496ae253b92ea43eeacbb0d408bd\r\nTo: sip:15055369524@67.228.15.154;tag=1cc81d203d"..., 
    len=681, rcv_info=0xbfd1a804) at receive.c:200
        msg = (struct sip_msg *) 0x81a5088
        __FUNCTION__ = "receive_msg"
#10 0x080d9ba4 in udp_rcv_loop () at udp_server.c:492
        len = 681
        tmp = <value optimized out>
        from = (union sockaddr_union *) 0x81a505c
        fromlen = 16
        ri = {src_ip = {af = 2, len = 4, u = {addrl = {2584732739, 0, 135473189, 3218188344}, addr32 = {2584732739, 0, 135473189, 3218188344}, addr16 = {58435, 39439, 0, 0, 10277, 2067, 43064, 49105}, 
      addr = "C###17\232\000\000\000\000%(\023\b8#ѿ"}}, dst_ip = {af = 2, len = 4, u = {addrl = {878322895, 0, 0, 0}, addr32 = {878322895, 0, 0, 0}, addr16 = {9423, 13402, 0, 0, 0, 0, 0, 0}, 
      addr = "##Z4", '\0' <repeats 11 times>}}, src_port = 5060, dst_port = 5060, proto = 1, proto_reserved1 = 0, proto_reserved2 = 0, src_su = {s = {sa_family = 2, sa_data = "\023#####17\232\000\000\000\000\000\000\000"}, sin = {
      sin_family = 2, sin_port = 50195, sin_addr = {s_addr = 2584732739}, sin_zero = "\000\000\000\000\000\000\000"}, sin6 = {sin6_family = 2, sin6_port = 50195, sin6_flowinfo = 2584732739, sin6_addr = {in6_u = {
          u6_addr8 = '\0' <repeats 15 times>, u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}, bind_address = 0x819e4e4}
        p = <value optimized out>
        buf = "SIP/2.0 200 OK\r\nVia: SIP/2.0/UDP 217.36.90.52;branch=z9hG4bKa672.4df87e96.0\r\nFrom: <sip:13053577239@8.20.212.240>;tag=6d0a496ae253b92ea43eeacbb0d408bd\r\nTo: sip:15055369524@67.228.15.154;tag=1cc81d203d"...
        __FUNCTION__ = "udp_rcv_loop"
#11 0x0806ea79 in main (argc=9, argv=0xbfd1a9a4) at main.c:818
        cfg_log_stderr = 0
        cfg_stream = (FILE *) 0xaa66008
        c = <value optimized out>
        r = <value optimized out>
        tmp = 0xbfd1aeaa ""
        tmp_len = <value optimized out>
---Type <return> to continue, or q <return> to quit---
        port = <value optimized out>
        proto = <value optimized out>
        ret = <value optimized out>
        seed = 668636172
        rfd = <value optimized out>
        __FUNCTION__ = "main"
(gdb)