#0  0x080fdda2 in ast_sched_del (con=0x9430210, id=0) at sched.c:298
        s = (struct sched *) 0x0
        __PRETTY_FUNCTION__ = "ast_sched_del"
#1  0x080fda3f in ast_sched_replace_variable (old_id=0, con=0x9430210, when=1000, callback=0x911080 <retrans_pkt>, data=0x9477e08, variable=1)
    at sched.c:213
No locals.
#2  0x00911b8a in __sip_reliable_xmit (p=0x9473ad8, seqno=2127861538, resp=1,
    data=0xa48ca4 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP 192.168.0.21;branch=z9hG4bK6b248ebe2;received=192.168.0.21\r\nFrom: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11\r\nTo: 5705 <sip:5705@90.0.0."..., len=460, fatal=1, sipmethod=1) at chan_sip.c:2390
        pkt = (struct sip_pkt *) 0x9477e08
        siptimer_a = 1000
        xmitres = 0
        __PRETTY_FUNCTION__ = "__sip_reliable_xmit"
#3  0x00912b7d in send_response (p=0x9473ad8, req=0xa48a80, reliable=XMIT_CRITICAL, seqno=2127861538) at chan_sip.c:2608
        res = 3163804
#4  0x00924be3 in __transmit_response (p=0x9473ad8, msg=0x962381 "404 Not Found", req=0xa4a07c, reliable=XMIT_CRITICAL) at chan_sip.c:6589
        resp = {rlPart1 = 0x0, rlPart2 = 0x0, len = 460, headers = 19, method = 1, lines = 0, sdp_start = 0, sdp_end = 0, debug = 0 '\0',
  has_to_tag = 0 '\0', ignore = 0 '\0', header = {
    0xa48ca4 "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP 192.168.0.21;branch=z9hG4bK6b248ebe2;received=192.168.0.21\r\nFrom: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11\r\nTo: 5705 <sip:5705@90.0.0."...,
    0xa48cbb "Via: SIP/2.0/UDP 192.168.0.21;branch=z9hG4bK6b248ebe2;received=192.168.0.21\r\nFrom: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11\r\nTo: 5705 <sip:5705@90.0.0.176:5060>;tag=as11d2c59"..., 0x0,
    0xa48d08 "From: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11\r\nTo: 5705 <sip:5705@90.0.0.176:5060>;tag=as11d2c599\r\nCall-ID: c1a913964e3b45db4c565ab495487105@192.168.0.21\r\nCSeq: 2127861538 I"..., 0x0,
    0xa48d52 "To: 5705 <sip:5705@90.0.0.176:5060>;tag=as11d2c599\r\nCall-ID: c1a913964e3b45db4c565ab495487105@192.168.0.21\r\nCSeq: 2127861538 INVITE\r\nUser-Agent: Asterisk PBX SVN-trunk-r81384\r\nAllow: INVITE, ACK, CANC"..., 0x0,
    0xa48d86 "Call-ID: c1a913964e3b45db4c565ab495487105@192.168.0.21\r\nCSeq: 2127861538 INVITE\r\nUser-Agent: Asterisk PBX SVN-trunk-r81384\r\nAllow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY\r\nSupporte"..., 0x0,
    0xa48dbe "CSeq: 2127861538 INVITE\r\nUser-Agent: Asterisk PBX SVN-trunk-r81384\r\nAllow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY\r\nSupported: replaces\r\nContent-Length: 0\r\n\r\n", 0x0,
    0xa48dd7 "User-Agent: Asterisk PBX SVN-trunk-r81384\r\nAllow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY\r\nSupported: replaces\r\nContent-Length: 0\r\n\r\n", 0x0,
    0xa48e02 "Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY\r\nSupported: replaces\r\nContent-Length: 0\r\n\r\n", 0x0,
    0xa48e46 "Supported: replaces\r\nContent-Length: 0\r\n\r\n", 0x0, 0xa48e5b "Content-Length: 0\r\n\r\n", 0x0 <repeats 46 times>}, line = {
    0x0 <repeats 64 times>},
  data = "SIP/2.0 404 Not Found\r\nVia: SIP/2.0/UDP 192.168.0.21;branch=z9hG4bK6b248ebe2;received=192.168.0.21\r\nFrom: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11\r\nTo: 5705 <sip:5705@90.0.0."...}
        seqno = 2127861538
        __PRETTY_FUNCTION__ = "__transmit_response"
#5  0x009251c9 in transmit_response_reliable (p=0x9473ad8, msg=0x962381 "404 Not Found", req=0xa4a07c) at chan_sip.c:6681
No locals.
#6  0x0094c677 in handle_request_invite (p=0x9473ad8, req=0xa4a07c, debug=0, seqno=2127861538, sin=0xa4a06c, recount=0xa4a060,
    e=0xa4a2a7 "sip:5705@90.0.0.176:5060", nounlock=0xa4a064) at chan_sip.c:14757
        res = 0
        gotdest = -1
        p_replaces = 0x960c42 ""
        replace_id = 0x0
        required = 0x960c42 ""
        required_profile = 0
        c = (struct ast_channel *) 0x0
        reinvite = 0
        __PRETTY_FUNCTION__ = "handle_request_invite"
#7  0x00952b66 in handle_incoming (p=0x9473ad8, req=0xa4a07c, sin=0xa4a06c, recount=0xa4a060, nounlock=0xa4a064) at chan_sip.c:16140
        cmd = 0xa4a2a0 "INVITE"
        cseq = 0xa4a3ad "2127861538 INVITE"
        useragent = 0xa4a4d8 "Aastra 55i/2.0.2.1040 Brcm-Callctrl/v1.7.2.2 M5T SIP-UA SAFE/v3.6.7.11"
        seqno = 2127861538
        len = 10
        respid = 4251584
        res = 0
        debug = 0
        e = 0xa4a2a7 "sip:5705@90.0.0.176:5060"
        error = 0
        __PRETTY_FUNCTION__ = "handle_incoming"
#8  0x00953583 in sipsock_read (id=0x9413fe8, fd=13, events=1, ignore=0x0) at chan_sip.c:16286
        req = {rlPart1 = 0xa4a2a0 "INVITE", rlPart2 = 0xa4a2a7 "sip:5705@90.0.0.176:5060", len = 1239, headers = 15, method = 5, lines = 25,
  sdp_start = 0, sdp_end = 25, debug = 0 '\0', has_to_tag = 0 '\0', ignore = 0 '\0', header = {0xa4a2a0 "INVITE",
    0xa4a2c9 "From: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11", 0xa4a313 "To: 5705 <sip:5705@90.0.0.176:5060>",
    0xa4a338 "Via: SIP/2.0/UDP 192.168.0.21;branch=z9hG4bK6b248ebe2", 0xa4a36f "Call-ID: c1a913964e3b45db4c565ab495487105@192.168.0.21",
    0xa4a3a7 "CSeq: 2127861538 INVITE", 0xa4a3c0 "Max-Forwards: 70", 0xa4a3d2 "Content-Length: 597", 0xa4a3e7 "Supported: timer",
    0xa4a3f9 "Allow-Events: talk,hold,conference", 0xa4a41d "Allow:NOTIFY,REFER,OPTIONS,INVITE,ACK,CANCEL,BYE,INFO",
    0xa4a454 "Content-Type: application/sdp", 0xa4a473 "Contact: Some User <sip:5711@192.168.0.21;transport=udp>",
    0xa4a4b7 "Supported: replaces", 0xa4a4cc "User-Agent: Aastra 55i/2.0.2.1040 Brcm-Callctrl/v1.7.2.2 M5T SIP-UA SAFE/v3.6.7.11", 0xa4a520 "",
    0x0 <repeats 48 times>}, line = {0xa4a522 "v=0", 0xa4a527 "o=MxSIP 0 1006859366 IN IP4 192.168.0.21", 0xa4a551 "s=SIP Call",
    0xa4a55d "c=IN IP4 192.168.0.21", 0xa4a574 "t=0 0", 0xa4a57b "m=audio 3000 RTP/AVP 0 18 96 102 107 104 105 106 97 98 2 99 9 8 101",
    0xa4a5c0 "a=rtpmap:0 PCMU/8000", 0xa4a5d6 "a=rtpmap:18 G729/8000", 0xa4a5ed "a=rtpmap:96 BV16/8000", 0xa4a604 "a=rtpmap:102 BV32/16000",
    0xa4a61d "a=rtpmap:107 L16/16000", 0xa4a635 "a=rtpmap:104 PCMU/16000", 0xa4a64e "a=rtpmap:105 PCMA/16000", 0xa4a667 "a=rtpmap:106 L16/8000",
    0xa4a67e "a=rtpmap:97 G726-16/8000", 0xa4a698 "a=rtpmap:98 G726-24/8000", 0xa4a6b2 "a=rtpmap:2 G726-32/8000", 0xa4a6cb "a=rtpmap:99 G726-40/8000",
    0xa4a6e5 "a=rtpmap:9 G722/8000", 0xa4a6fb "a=rtpmap:8 PCMA/8000", 0xa4a711 "a=rtpmap:101 telephone-event/8000", 0xa4a734 "a=fmtp:101 0-15",
    0xa4a745 "a=ptime:30", 0xa4a751 "a=sendrecv", 0xa4a75d "a=silenceSupp:on - - - -", 0xa4a777 "", 0x0 <repeats 38 times>},
  data = "INVITE\000sip:5705@90.0.0.176:5060\000SIP/2.0\000\000From: Some User <sip:5711@90.0.0.176:5060>;tag=7f4345284bcaa11\000\000To: 5705 <sip:5705@90.0.0.176:5060>\000\000Via: SIP/2.0/UDP 192.168.0.21;branch=z9hG4bK6b24"...}
        sin = {sin_family = 2, sin_port = 50195, sin_addr = {s_addr = 352364736}, sin_zero = "\000\000\000\000\000\000\000"}
        p = (struct sip_pvt *) 0x9473ad8
        res = 1239
        len = 16
        nounlock = 0
        recount = 0
        lockretry = 100
        __PRETTY_FUNCTION__ = "sipsock_read"
#9  0x080b483d in ast_io_wait (ioc=0x942f530, howlong=1000) at io.c:293
        res = 1
        x = 0
        origcnt = 1
#10 0x00954077 in do_monitor (data=0x0) at chan_sip.c:16514
        res = 1000
        dialog = (struct sip_pvt *) 0x0
        t = 1188503949
        reloading = 0
        __PRETTY_FUNCTION__ = "do_monitor"
#11 0x0810c14d in dummy_start (data=0xb7e062f0) at utils.c:789
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {5865460, 0, 10795920, 10793928, 421366540, 296352113}, __mask_was_saved = 0}}, __pad = {
    0xa4b480, 0x0, 0x0, 0x0}}
        __cancel_routine = (void (*)(void *)) 0x806bcc9 <ast_unregister_thread>
        __cancel_arg = (void *) 0xa4bb90
        not_first_call = 0
        ret = (void *) 0x0
        a = {start_routine = 0x953dfb <do_monitor>, data = 0x0,
  name = 0xb7e11408 "do_monitor", ' ' <repeats 11 times>, "started at [16547] chan_sip.c restart_monitor()"}
#12 0x005892db in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#13 0x001dd12e in clone () from /lib/libc.so.6
No symbol table info available.