(gdb) bt full
#0  0x080632c9 in ast_bridged_channel (chan=0xaac7b4a8) at channel.c:2617
        bridged = (struct ast_channel *) 0x956b520
#1  0x001fc59e in handle_request (p=0xaac14338, req=0xb11dc740, sin=0x20a388, recount=0x956b520,
    nounlock=0x0) at chan_sip.c:7903
        resp = {rlPart1 = 0x0, rlPart2 = 0x0, len = 0, headers = 0, header = {0x0 <repeats 37 times>,
    0x2f504953 <Address 0x2f504953 out of bounds>, 0x20302e32 <Address 0x20302e32 out of bounds>,
    0x20303032 <Address 0x20303032 out of bounds>, 0xa0d4b4f <Address 0xa0d4b4f out of bounds>,
    0x3a616956 <Address 0x3a616956 out of bounds>, 0x50495320 <Address 0x50495320 out of bounds>,
    0x302e322f <Address 0x302e322f out of bounds>, 0x5044552f <Address 0x5044552f out of bounds>,
    0x2e303120 <Address 0x2e303120 out of bounds>, 0x2e303331 <Address 0x2e303331 out of bounds>,
    0x39322e34 <Address 0x39322e34 out of bounds>, 0x3939313a <Address 0x3939313a out of bounds>,
    0x623b3938 <Address 0x623b3938 out of bounds>, 0x636e6172 <Address 0x636e6172 out of bounds>,
    0x397a3d68 <Address 0x397a3d68 out of bounds>, 0x62344768 <Address 0x62344768 out of bounds>,
    0x6666614b <Address 0x6666614b out of bounds>, 0x61383035 <Address 0x61383035 out of bounds>,
    0x39393736 <Address 0x39393736 out of bounds>, 0x34636565 <Address 0x34636565 out of bounds>,
    0x65723b64 <Address 0x65723b64 out of bounds>, 0x76696563 <Address 0x76696563 out of bounds>,
    0x313d6465 <Address 0x313d6465 out of bounds>, 0x33312e30 <Address 0x33312e30 out of bounds>,
    0x2e342e30 <Address 0x2e342e30 out of bounds>, 0x723b3932 <Address 0x723b3932 out of bounds>,
    0x74726f70 <Address 0x74726f70 out of bounds>}, lines = 960049469, line = {
    0xa0d3938 <Address 0xa0d3938 out of bounds>, 0x6d6f7246 <Address 0x6d6f7246 out of bounds>,
    0x5022203a <Address 0x5022203a out of bounds>, 0x31332041 <Address 0x31332041 out of bounds>,
    0x20223635 <Address 0x20223635 out of bounds>, 0x7069733c <Address 0x7069733c out of bounds>,
    0x3531333a <Address 0x3531333a out of bounds>, 0x30314036 <Address 0x30314036 out of bounds>,
    0x3033312e <Address 0x3033312e out of bounds>, 0x352e342e <Address 0x352e342e out of bounds>,
    0x61743b3e <Address 0x61743b3e out of bounds>, 0x65393d67 <Address 0x65393d67 out of bounds>,
    0x62373835 <Address 0x62373835 out of bounds>, 0x65336430 <Address 0x65336430 out of bounds>,
    0x30313666 <Address 0x30313666 out of bounds>, 0xa0d3239 <Address 0xa0d3239 out of bounds>,
    0x203a6f54 <Address 0x203a6f54 out of bounds>, 0x7069733c <Address 0x7069733c out of bounds>,
    0x3531333a <Address 0x3531333a out of bounds>, 0x30314036 <Address 0x30314036 out of bounds>,
    0x3033312e <Address 0x3033312e out of bounds>, 0x352e342e <Address 0x352e342e out of bounds>,
    0x61743b3e <Address 0x61743b3e out of bounds>, 0x73613d67 <Address 0x73613d67 out of bounds>,
    0x30343935 <Address 0x30343935 out of bounds>, 0x34363631 <Address 0x34363631 out of bounds>,
    0x61430a0d <Address 0x61430a0d out of bounds>, 0x492d6c6c <Address 0x492d6c6c out of bounds>,
    0x62203a44 <Address 0x62203a44 out of bounds>, 0x39653733 <Address 0x39653733 out of bounds>,
    0x35316362 <Address 0x35316362 out of bounds>, 0x39373630 <Address 0x39373630 out of bounds>,
    0x40326533 <Address 0x40326533 out of bounds>, 0x312e3031 <Address 0x312e3031 out of bounds>,
    0x342e3033 <Address 0x342e3033 out of bounds>, 0xd39322e <Address 0xd39322e out of bounds>,
    0x6553430a <Address 0x6553430a out of bounds>, 0x31203a71 <Address 0x31203a71 out of bounds>,
    0x52203130 <Address 0x52203130 out of bounds>, 0x53494745 <Address 0x53494745 out of bounds>,
    0xd524554 <Address 0xd524554 out of bounds>, 0x6573550a <Address 0x6573550a out of bounds>,
    0x67412d72 <Address 0x67412d72 out of bounds>, 0x3a746e65 <Address 0x3a746e65 out of bounds>,
    0x74734120 <Address 0x74734120 out of bounds>, 0x73697265 <Address 0x73697265 out of bounds>,
    0x4250206b <Address 0x4250206b out of bounds>, 0x410a0d58 <Address 0x410a0d58 out of bounds>,
    0x776f6c6c <Address 0x776f6c6c out of bounds>, 0x4e49203a <Address 0x4e49203a out of bounds>,
    0x45544956 <Address 0x45544956 out of bounds>, 0x4341202c <Address 0x4341202c out of bounds>,
    0x43202c4b <Address 0x43202c4b out of bounds>, 0x45434e41 <Address 0x45434e41 out of bounds>,
    0x4f202c4c <Address 0x4f202c4c out of bounds>, 0x4f495450 <Address 0x4f495450 out of bounds>,
    0x202c534e <Address 0x202c534e out of bounds>, 0x2c455942 <Address 0x2c455942 out of bounds>,
    0x46455220 <Address 0x46455220 out of bounds>, 0xa0d5245 <Address 0xa0d5245 out of bounds>,
    0x69707845 <Address 0x69707845 out of bounds>, 0x3a736572 <Address 0x3a736572 out of bounds>,
    0x30363320 <Address 0x30363320 out of bounds>, 0x430a0d30 <Address 0x430a0d30 out of bounds>},
  data = "ontact: <sip:3156@10.130.4.29:19989>;expires=3600\r\nDate: Sun, 13 Feb 2005 03:53:27 GMT\r\nContent-Length: 0\r\n\r\n", '\0' <repeats 459 times>, "\eu/", '\0' <repeats 41 times>, "\2005\035±\t\000\000\000\005\000\000\000\231\231\231\031\000\000\000\000Ü?>\000\2005\035±<:\035±h5\035±\201o/\000\2005\035±<:\035±\n\000\000\000\000\000\000\000\200C>\000\000\200\000\000¼:\035±"...}
        cmd = 0x0
        cseq = 0x0
        from = 0x0
        e = 0x0
        useragent = 0x956b520 "¨Z>"
        c = (struct ast_channel *) 0x0
        transfer_to = (struct ast_channel *) 0xaac14338
        seqno = 0
        len = 0
        ignore = 0
        respid = 0
        res = -1430174920
        gotdest = 0
        iabuf = '\0' <repeats 15 times>
        af = {frametype = 0, subclass = 0, datalen = 0, samples = 0, mallocd = 0, offset = 0, src = 0x0,
  data = 0x0, delivery = {tv_sec = 0, tv_usec = 0}, prev = 0x0, next = 0x0}
#2  0x001f8524 in sip_answer (ast=0xaac14338) at chan_sip.c:1872
        res = 2136190
        fmt = 80
        codec = 0x20987e "figured codec (check allow/disallow in sip.conf): %s\n"
        p = (struct sip_pvt *) 0xaac14338
#3  0x001f558f in sip_register (value=0x20c668 "\001", lineno=137) at chan_sip.c:2566
        reg = (struct sip_registry *) 0xaac14338
        copy = '\0' <repeats 244 times>, "\220\000G\000\210Ù\035±\231F9"
        hostname = 0x20c668 "\001"
        secret = 0x0
        authuser = 0x0
        contact = 0x0
        stringp = 0x0
#4  0x08053030 in ast_io_wait (ioc=0x9518d08, howlong=156677408) at io.c:267
        res = 1
        x = 0
        origcnt = 1
#5  0x001ef66b in complete_sip_show_user (line=0x0, word=0x0, pos=0, state=156677408) at chan_sip.c:6562
No locals.
#6  0x0046d98c in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#7  0x003877da in clone () from /lib/tls/libc.so.6
No symbol table info available.
(gdb)