#0  0x080cd6e6 in add_string_pool (mgr=0x81ea654, size=128) at utils.c:983
        pool = (struct ast_string_field_pool *) 0x81ef744
#1  0x080cd747 in __ast_string_field_init (mgr=0x81ea654, size=128, fields=0x81ea63c, num_fields=6) at utils.c:999
        index = 136246956
#2  0x0806155e in ast_channel_alloc (needqueue=1) at channel.c:618
        tmp = (struct ast_channel *) 0x81ea634
        x = -1220901235
        flags = -1221212404
        headp = (struct varshead *) 0xb73b4f5c
#3  0xb7379c78 in sip_new (i=0x81eb79c, state=0, title=0x0) at chan_sip.c:2881
        tmp = (struct ast_channel *) 0x2304c8cd
        v = (struct ast_variable *) 0x0
        fmt = 775435825
        what = 775043377
#4  0xb739c1c9 in handle_request_invite (p=0x81eb79c, req=0xb735dbf4, debug=0, ignore=0, seqno=1, sin=0xb735dbe4, recount=0xb735dbd0, 
    e=0xb735de13 "sip:service@192.168.1.10:5060") at strings.h:34
        res = 0
        c = (struct ast_channel *) 0x0
        gotdest = 0
        supported = 0xb73a8d24 ""
        required = 0xb73a8d24 ""
        required_profile = 0
#5  0xb739eb34 in handle_request (p=0x81eb79c, req=0xb735dbf4, sin=0xb735dbe4, recount=0xb735dbd0, nounlock=0xb735dbd4) at chan_sip.c:11175
        resp = {rlPart1 = 0x0, rlPart2 = 0x0, len = 0, headers = 0, method = 0, header = {0x0 <repeats 64 times>}, lines = 0, line = {
    0x0 <repeats 64 times>}, data = '\0' <repeats 4095 times>, debug = 0, flags = 0}
        cmd = 0xb735de0c "INVITE"
        cseq = 0xb735dee8 "1 INVITE"
        useragent = 0xb73a8d24 ""
        seqno = 1
        len = 1
        ignore = 0
        respid = 200
        res = 0
        iabuf = '\0' <repeats 15 times>
        debug = 0
        e = 0xb735de13 "sip:service@192.168.1.10:5060"
        error = 0
#6  0xb739f447 in sipsock_read (id=0x8148804, fd=20, events=1, ignore=0x0) at chan_sip.c:11308
        req = {rlPart1 = 0xb735de0c "INVITE", rlPart2 = 0xb735de13 "sip:service@192.168.1.10:5060", len = 494, headers = 11, method = 5, header = {
    0xb735de0c "INVITE", 0xb735de3a "Via: SIP/2.0/UDP 127.0.0.1:5061;branch=z9hG4bK-29-0", 0xb735de6f "From: sipp <sip:sipp@127.0.0.1:5061>;tag=29", 
    0xb735de9c "To: sut <sip:service@192.168.1.10:5060>", 0xb735dec5 "Call-ID: 29-11794@127.0.0.1", 0xb735dee2 "CSeq: 1 INVITE", 
    0xb735def2 "Contact: sip:sipp@127.0.0.1:5061", 0xb735df14 "Max-Forwards: 70", 0xb735df26 "Subject: Performance Test", 
    0xb735df41 "Content-Type: application/sdp", 0xb735df60 "Content-Length:  130", 0xb735df76 "", 0x0 <repeats 52 times>}, lines = 7, line = {
    0xb735df78 "v=0", 0xb735df7d "o=user1 53655765 2353687637 IN IP4 127.0.0.1", 0xb735dfab "s=-", 0xb735dfb0 "c=IN IP4 127.0.0.1", 0xb735dfc4 "t=0 0", 
    0xb735dfcb "m=audio 10000 RTP/AVP 0", 0xb735dfe4 "a=rtpmap:0 PCMU/8000", 0xb735dffa "", 0x0 <repeats 56 times>}, 
  data = "INVITE\000sip:service@192.168.1.10:5060\000SIP/2.0\000\000Via: SIP/2.0/UDP 127.0.0.1:5061;branch=z9hG4bK-29-0\000\000From: sipp <sip:sipp@127.0.0.1:5061>;tag=29\000\000To: sut <sip:service@192.168.1.10:5060>\000\000Call-ID: 29-117"..., debug = 0, flags = 0}
        sin = {sin_family = 2, sin_port = 50451, sin_addr = {s_addr = 167880896}, sin_zero = "\000\000\000\000\000\000\000"}
        p = (struct sip_pvt *) 0x81eb79c
        res = 494
        len = 16
        nounlock = 0
        recount = 0
        iabuf = "\"ß5·5ß5·\000\000\000\000\000\000\000"