(gdb) bt
#0  0x0000163a in ?? ()
#1  0x0807036c in pbx_exec (c=0x40931358, app=0x80fe4a8, data=0xbd9fd8b4,
    newstack=1) at pbx.c:471
#2  0x08072692 in pbx_extension_helper (c=0x40931358,
    context=0x409314b0 "from-sip_auth", exten=0x409315a4 "009779820040",
    priority=2, callerid=0x40932c30 "4070", action=1) at pbx.c:1385
#3  0x080736ed in ast_pbx_run (c=0x40931358) at pbx.c:1880
#4  0x0807a1b6 in pbx_thread (data=0x40931358) at pbx.c:2103
#5  0x400210ba in pthread_start_thread () from /lib/libpthread.so.0

(gdb) bt full
#0  0x0000163a in ?? ()
No symbol table info available.
#1  0x0807036c in pbx_exec (c=0x40931358, app=0x80fe4a8, data=0xbd9fd8b4,
    newstack=1) at pbx.c:471
        res = 0
        saved_c_appl = 0x407ea144 "lp"
        saved_c_data = 0x0
        stack = -1
        execute = (int (*)()) 0x407e727c <callingcard_exec>
#2  0x08072692 in pbx_extension_helper (c=0x40931358,
    context=0x409314b0 "from-sip_auth", exten=0x409315a4 "009779820040",
    priority=2, callerid=0x40932c30 "4070", action=1) at pbx.c:1385
        action = 1083381156
        e = (struct ast_exten *) 0xbd9fd8b4
        app = (struct ast_app *) 0x80fe4a8
        sw = (struct ast_switch *) 0x0
        data = 0x0
        newstack = 1
        res = -1113597772
        status = 4
        incstack = {0x81a7e20 "from-sip_auth", 0x0 <repeats 19 times>,  0x3 <Address 0x3 out of bounds>,
  0x8080b32 "\203Ä\020\205Àu\a\212\0043\210\0047GC\200<3", 0x80cda90 "( )-.",
  0x30 <Address 0x30 out of bounds>, 0x0, 0x0, 0x81cd588 "4070",
  0x40931358 "SIP/4070-f824", 0x40931358 "SIP/4070-f824", 0x0,
  0x4 <Address 0x4 out of bounds>, 0x81cd848 "1102307937.672",
  0xbd9ff9c4 "¤\025\223@\002", 0x8084b68 "\203Ä\020\213¶à\003",
  0x81cd848 "1102307937.672", 0x40932b0c "1102307937.672",
  0x1f <Address 0x1f out of bounds>, 0x40022195 "[\201ÃKÉ",
  0x4002eae0 "ì9\001", 0xbd9ffb60 "", 0xbd9ffc00 "",
  0x400222d3 "1Àë\005¸\026", 0x401e1ac0 "", 0x401e16a0 "", 0xbd9ff9a4 "",
  0x4013a1a8 "ë\020\215¶", 0x0, 0xbd9ff974 "4070",
  0x30373034 <Address 0x30373034 out of bounds>, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
  0x0, 0x0, 0x80852f3 "\203Ä\020\213\233à\003", 0x81cd808 "aâ³AäÉ\b", 0x0,
  0x0, 0x0, 0x409314b0 "from-sip_auth", 0x409315a4 "009779820040"}
        passdata = "009779820040", '\0' <repeats 8179 times>
        stacklen = 1
        tmp = "CallingCard", '\0' <repeats 68 times>
        tmp2 = "SIP/4070-f824", '\0' <repeats 66 times>
        tmp3 = "009779820040", '\0' <repeats 8179 times>
#3  0x080736ed in ast_pbx_run (c=0x40931358) at pbx.c:1880
        digit = 0 '\0'
        exten = '\0' <repeats 255 times>
        pos = 0
        waittime = -1113588988
        res = 0
#4  0x0807a1b6 in pbx_thread (data=0x40931358) at pbx.c:2103
        data = (void *) 0xbd9faf7d
#5  0x400210ba in pthread_start_thread () from /lib/libpthread.so.0