#0  0x08097913 in ast_rtp_destroy (rtp=0xad20f8f0) at rtp.c:1819
1819            if (rtp->rtcp->schedid > 0) {
(gdb) bt full
#0  0x08097913 in ast_rtp_destroy (rtp=0xad20f8f0) at rtp.c:1819
No locals.
#1  0x04226994 in __sip_destroy (p=0xad20e398, lockowner=1) at chan_sip.c:2787
        cur = (struct sip_pvt *) 0x42708e8
        prev = (struct sip_pvt *) 0x0
        cp = (struct sip_pkt *) 0x59d40a8
        __PRETTY_FUNCTION__ = "__sip_destroy"
#2  0x0422797c in sip_destroy (p=0xad20e398) at chan_sip.c:2982
        __PRETTY_FUNCTION__ = "sip_destroy"
#3  0x0425951c in sip_request_call (type=0x59d42f0 "SIP", format=8, data=0x59d4d70, cause=0x59d4dc4) at chan_sip.c:14689
        oldformat = 8
        p = (struct sip_pvt *) 0xad20e398
        tmpc = (struct ast_channel *) 0x0
        ext = 0x0
        host = 0x59d4120 "5638"
        tmp = "5638", '\0' <repeats 120 times>, "$_l", '\0' <repeats 77 times>, "$_l", '\0' <repeats 48 times>
        dest = 0x59d4d70 "5638"
        __PRETTY_FUNCTION__ = "sip_request_call"
#4  0x08068b46 in ast_request (type=0x59d42f0 "SIP", format=8, data=0x59d4d70, cause=0x59d4dc4) at channel.c:2656
        chan = (struct chanlist *) 0x9acca98
        c = (struct ast_channel *) 0x0
        capabilities = 8
        fmt = 8
        res = 0
        foo = 7138019
        videoformat = 0
        __PRETTY_FUNCTION__ = "ast_request"
#5  0x00e83fe4 in dial_exec_full (chan=0xad60ff30, data=0x59d9000, peerflags=0x59d4e10) at app_dial.c:1067
        tmp = (struct dial_localuser *) 0xad7a7a60
        number = 0x59d42f4 "5638"
        tech = 0x59d42f0 "SIP"
        res = -1
        u = (struct localuser *) 0xb7a119e8
        rest = 0x0
        cur = 0x59d42f0 "SIP"
        outgoing = (struct dial_localuser *) 0x0
        peer = (struct ast_channel *) 0x0
        to = 1819042092
        numbusy = 0
        numcongestion = 0
        numnochan = 0
        cause = 0
        numsubst = "5638", '\0' <repeats 75 times>
        cidname = '\0' <repeats 79 times>
        privdb_val = 0
        calldurationlimit = 0
        timelimit = 0
        play_warning = 0
        warning_freq = 0
        warning_sound = 0x0
        end_sound = 0x0
        start_sound = 0x0
        dtmfcalled = 0x0
        dtmfcalling = 0x0
        status = '\0' <repeats 255 times>
        play_to_caller = 0
        play_to_callee = 0
        sentringing = 0
        moh = 0
---Type <return> to continue, or q <return> to quit---
        outbound_group = 0x0
        result = 0
        start_time = 0
        privintro = '\0' <repeats 1023 times>
        privcid = '\0' <repeats 255 times>
        parse = 0x59d42f0 "SIP"
        opermode = 0
        args = {argc = 3, argv = 0x59d46a4, peers = 0x59d42f0 "SIP", timeout = 0x59d42f9 "15",
  options = 0x59d42fc "gM(AgentConnected^David.Bosquette@mike.tessera.co.uk/DebtNet^01159139565^5638^1152530238.9067^BTMK", url = 0x0}
        opts = {flags = 2080}
        opt_args = {0x0, 0x0, 0x0, 0x0, 0x0,
  0x59d42ff "AgentConnected^David.Bosquette@mike.tessera.co.uk/DebtNet^01159139565^5638^1152530238.9067^BTMK", 0x0, 0x0, 0x0}
        __PRETTY_FUNCTION__ = "dial_exec_full"
#6  0x00e86655 in dial_exec (chan=0xad60ff30, data=0x59d9000) at app_dial.c:1638
        peerflags = {flags = 32}
#7  0x08072060 in pbx_exec (c=0xad60ff30, app=0x9b46130, data=0x59d9000) at pbx.c:505
        res = 162816304
        saved_c_appl = 0x0
        saved_c_data = 0x0
#8  0x08074bd8 in pbx_extension_helper (c=0xad60ff30, con=0x0, context=0xad6100b0 "AgentQ", exten=0xad610100 "5638", priority=12, label=0x0,
    callerid=0xb7c1aed0 "01159139565", action=E_SPAWN) at pbx.c:1701
        e = (struct ast_exten *) 0x9af4e50
        app = (struct ast_app *) 0x9b46130
        res = 0
        q = {incstack = {0x0 <repeats 128 times>}, stacklen = 0, status = 5, swo = 0x0, data = 0x0, foundcontext = 0xad6100b0 "AgentQ"}
        passdata = "SIP/5638|15|gM(AgentConnected^David.Bosquette@mike.tessera.co.uk/DebtNet^01159139565^5638^1152530238.9067^BTMK)", '\0' <repeats 8080 times>
        matching_action = 0
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#9  0x08075c87 in ast_spawn_extension (c=0xad60ff30, context=0xad6100b0 "AgentQ", exten=0xad610100 "5638", priority=12,
    callerid=0xb7c1aed0 "01159139565") at pbx.c:2155
No locals.
#10 0x08076175 in __ast_pbx_run (c=0xad60ff30) at pbx.c:2255
        dst_exten = "À³\235\005ij\235\005ì³\235\005", '\0' <repeats 36 times>, "ð³\235\005wn\a\b\000\000\000\000\000\000\000\000ô\017\202\000à~\201\000\000\000\000\000ÄUl\000\000\000\000\000\000\000\000\000\214³\235\005\000\000\000\000\220³\235\005\224³\235\005\000\000\000\000 ³\235\005\230³\235\005\234³\235\005¤³\235\005\000\000\000\000\000\000\000\000(¸x\000ÄUl\000\020\000\000\000\000\000\000\0000Ll\000\000\000\000\000\f\000\000\000ô\237x\000\f\000\000\000 ¸x\000\230³\235\005ö|l\000 ¸x\000\f\000\000\000\030\000\000\000\220\005\001\000\f\000\000\000p\032\001\nô\017\202\000\000\000\000\000°»\235\005ȳ\235\005\202¢\v\b\001\000"...
        pos = 0
        digit = 0
        found = 1
        res = 0
        autoloopflag = 0
        error = 0
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#11 0x08076e66 in pbx_thread (data=0xad60ff30) at pbx.c:2466
        c = (struct ast_channel *) 0xad60ff30
#12 0x080badf5 in dummy_start (data=0xad92d280) at utils.c:536
        _buffer = {__routine = 0x80a67bd <ast_unregister_thread>, __arg = 0x59dbbb0, __canceltype = 0, __prev = 0x0}
        ret = (void *) 0x788664
        a = {start_routine = 0x8076e4f <pbx_thread>, data = 0xad60ff30,
  name = 0xad6103a0 "pbx_thread", ' ' <repeats 11 times>, "started at [ 2490] pbx.c ast_pbx_start()"}
#13 0x00817341 in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#14 0x0072b6fe in clone () from /lib/tls/libc.so.6
No symbol table info available.