#0  0x0807b83c in ast_queue_frame (chan=0xb4f917f8, fin=0x814ee20) at channel.c:934
934             AST_LIST_INSERT_TAIL(&chan->readq, f, frame_list);
(gdb) bt
#0  0x0807b83c in ast_queue_frame (chan=0xb4f917f8, fin=0x814ee20) at channel.c:934
#1  0x07b4cf44 in handle_response_invite (p=0xb9e2530, resp=200, rest=0x257a328 "OK", req=0x257a100, seqno=103) at chan_sip.c:11902
#2  0x07b4ee0d in handle_response (p=0xb9e2530, resp=200, rest=0x257a328 "OK", req=0x257a100, ignore=0, seqno=103)
    at chan_sip.c:12349
#3  0x07b59188 in handle_request (p=0xb9e2530, req=0x257a100, sin=0x257a0f0, recount=0x257a0dc, nounlock=0x257a0e0)
    at chan_sip.c:14857
#4  0x07b5a15c in sipsock_read (id=0x9cb5078, fd=15, events=1, ignore=0x0) at chan_sip.c:15084
#5  0x080a6b8b in ast_io_wait (ioc=0xb7ab67c8, howlong=1) at io.c:279
#6  0x07b5ab25 in do_monitor (data=0x0) at chan_sip.c:15290
#7  0x080f4999 in dummy_start (data=0xb7aba708) at utils.c:545
#8  0x007ad371 in start_thread () from /lib/tls/libpthread.so.0
#9  0x00698ffe in clone () from /lib/tls/libc.so.6
(gdb) bt full
#0  0x0807b83c in ast_queue_frame (chan=0xb4f917f8, fin=0x814ee20) at channel.c:934
        f = (struct ast_frame *) 0xb5827118
        cur = (struct ast_frame *) 0x0
        blah = 1
        qlen = 1
        __PRETTY_FUNCTION__ = "ast_queue_frame"
#1  0x07b4cf44 in handle_response_invite (p=0xb9e2530, resp=200, rest=0x257a328 "OK", req=0x257a100, seqno=103) at chan_sip.c:11902
        outgoing = 8192
        res = 0
        xmitres = 0
        reinvite = 1
        bridgepeer = (struct ast_channel *) 0xb0704e0
        __PRETTY_FUNCTION__ = "handle_response_invite"
#2  0x07b4ee0d in handle_response (p=0xb9e2530, resp=200, rest=0x257a328 "OK", req=0x257a100, ignore=0, seqno=103)
    at chan_sip.c:12349
        owner = (struct ast_channel *) 0xb4f917f8
        sipmethod = 5
        res = 1
        c = 0x257a43c "103 INVITE"
        msg = 0x257a440 "INVITE"
        __PRETTY_FUNCTION__ = "handle_response"
#3  0x07b59188 in handle_request (p=0xb9e2530, req=0x257a100, sin=0x257a0f0, recount=0x257a0dc, nounlock=0x257a0e0)
    at chan_sip.c:14857
        cmd = 0x257a31c "SIP/2.0"
        cseq = 0x257a43c "103 INVITE"
        useragent = 0x257a454 "Asterisk PBX"
        seqno = 103
        len = 4
        ignore = 0
        respid = 200
        res = 0
        debug = 0
        e = 0x257a324 "200 OK"
        error = 0
        __PRETTY_FUNCTION__ = "handle_request"
#4  0x07b5a15c in sipsock_read (id=0x9cb5078, fd=15, events=1, ignore=0x0) at chan_sip.c:15084
        req = {rlPart1 = 0x257a31c "SIP/2.0", rlPart2 = 0x257a324 "200 OK", len = 871, headers = 12, method = 1, lines = 17, 
  flags = 0, header = {0x257a31c "SIP/2.0", 
    0x257a32c "Via: SIP/2.0/UDP 66.151.176.30:5060;branch=z9hG4bK46ff8f50;received=66.151.176.30;rport=5060", 
    0x257a38a "From: \"REMOVED\" <sip:DID_REMOVED@IP_REMOVED>;tag=as642688a5", 
    0x257a3d0 "To: <sip:*456@IP_REMOVED>;tag=as724ac921", 0x257a3fd "Call-ID: 11c6c86447f500696a9977a04f03fe32@IP_REMOVED", 
    0x257a436 "CSeq: 103 INVITE", 0x257a448 "User-Agent: Asterisk PBX", 
    0x257a462 "Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY", 0x257a4a6 "Supported: replaces", 
    0x257a4bb "Contact: <sip:*456@IP_REMOVED>", 0x257a4de "Content-Type: application/sdp", 0x257a4fd "Content-Length: 367", 
    0x257a512 "", 0x0 <repeats 51 times>}, line = {0x257a514 "v=0", 0x257a519 "o=root 21915 21916 IN IP4 IP_REMOVED", 
    0x257a542 "s=session", 0x257a54d "c=IN IP4 IP_REMOVED", 0x257a565 "t=0 0", 
---Type <return> to continue, or q <return> to quit--- 
    0x257a56c "m=audio 12316 RTP/AVP 0 8 111 3 18 101", 0x257a594 "a=rtpmap:0 PCMU/8000", 0x257a5aa "a=rtpmap:8 PCMA/8000", 
    0x257a5c0 "a=rtpmap:111 G726-32/8000", 0x257a5db "a=rtpmap:3 GSM/8000", 0x257a5f0 "a=rtpmap:18 G729/8000", 
    0x257a607 "a=fmtp:18 annexb=no", 0x257a61c "a=rtpmap:101 telephone-event/8000", 0x257a63f "a=fmtp:101 0-16", 
    0x257a650 "a=silenceSupp:off - - - -", 0x257a66b "a=ptime:20", 0x257a677 "a=sendrecv", 0x257a683 "", 0x0 <repeats 46 times>}, 
  data = "SIP/2.0\000200 OK\000\000Via: SIP/2.0/UDP IP_REMOVED:5060;branch=z9hG4bK46ff8f50;received=IP_REMOVED;rport=5060\000\000From: \"REMOVED\" <sip:DID_REMOVED@IP_REMOVED>;tag=as642688a5\000\000To: <sip:*456@IP_REMOVED"..., sdp_start = 0, 
  sdp_end = 17}
        sin = {sin_family = 2, sin_port = 50195, sin_addr = {s_addr = 850433858}, sin_zero = "\000\000\000\000\000\000\000"}
        p = (struct sip_pvt *) 0xb9e2530
        res = 871
        len = 16
        nounlock = 0
        recount = 0
        lockretry = 100
        __PRETTY_FUNCTION__ = "sipsock_read"
#5  0x080a6b8b in ast_io_wait (ioc=0xb7ab67c8, howlong=1) at io.c:279
        res = 1
        x = 0
        origcnt = 1
#6  0x07b5ab25 in do_monitor (data=0x0) at chan_sip.c:15290
        res = 1
        sip = (struct sip_pvt *) 0xb5d55c60
        peer = (struct sip_peer *) 0x0
        t = 1187371829
        fastrestart = 1
        lastpeernum = 1382
        curpeernum = 1383
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#7  0x080f4999 in dummy_start (data=0xb7aba708) at utils.c:545
        _buffer = {__routine = 0x80689d5 <ast_unregister_thread>, __arg = 0x257bbb0, __canceltype = 0, __prev = 0x0}
        ret = (void *) 0x0
        a = {start_routine = 0x7b5a55f <do_monitor>, data = 0x0, 
  name = 0xb7aba858 "do_monitor", ' ' <repeats 11 times>, "started at [15349] chan_sip.c restart_monitor()"}
#8  0x007ad371 in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#9  0x00698ffe in clone () from /lib/tls/libc.so.6
No symbol table info available.