[Kamailio-Users] Thomson ST2030 SIP contact problem

Samuel Muller sml at 720.fr
Mon Dec 1 12:40:00 CET 2008


On Mon, Dec 1, 2008 at 12:24 PM, Klaus Darilion <
klaus.mailinglists at pernau.at> wrote:

>
>
> Samuel Muller schrieb:
>
>> Hey Klaus,
>>
>> first, some answers :
>>
>> ->  when a thomson is the callee, there's no ringing even if indicated
>> into the SIP message.
>> -> when a thomson is the caller, no problem, there's a ring, and the call
>> is ok with audio.
>>
>
> Please be a bit more specific: What does "no ring" mean?
>  No "180 ringing" response from callee to caller?
>  "180 ringing" response but no "ring-back" at the caller's client?
>

oups, sorry, I mean : SIP messages are ok, there is all the sig process.

the architecture is :
linksys + thomson -> cisco 827 -> SDSL -> our backbone which have a firewall
for VPN (so NAT and NAPT are applied here), then the kamailio with a public
ip.

you have the 100 trying, 180 ringing in the SIP message, but there's no
ring-back tone for the callee.

in the attached file :
linksys to linksys, where all the call process is ok (sip + rtp)
thomson to linksys, idem
linksys to thomson, sip ok but rtp apparently not.

I forgot the firewall for the vpn, rtp proxying is required, sorry - so yes
rtp proxy must be used.

regards,

.Sam.





>
>  -> the SIP mesages are the same in the 2 cases.
>>
>> incoming invite are exactly the same (but the source IP, and the
>> "user=phone" parameter, for sure).
>> outgoing invite, in the 2 cases, replaces the source IP on the "c" line
>> into the SDP by the RTP proxy IP (but at the end, it indicates
>> a=nortpproxy:yes
>>
>
> a=nortpproxy:yes is fine. This line will signal to upstream proxies that an
> RTP proxy was already activated and there is no need to activate further RTP
> proxies.
>
>
> Please post a complete ngrep trace (INVITE.....BYE) for the sucessfull and
> for the unsuccessful call.
>
>
>  Did I force 2 times the RTP proxy, or is there a
>>
>
> no
>
>  fix_nated_contact/fix_nated_register pbm ?
>>
>
> For REGISTER handling you use fix_nated_register. For all other cases you
> use fix_nated_contact.
>
>
> BTW: What do you mean by "there's no RTP proxying" in the "not ok" case?
>
> regards
> klaus
>
>
>> really strange, I can send to you the kamailio debugs if you need it
>>
>> in advance many thanks,
>>
>> .Sam.
>>
>>
>>
>>
>> On Mon, Dec 1, 2008 at 11:50 AM, Klaus Darilion <
>> klaus.mailinglists at pernau.at <mailto:klaus.mailinglists at pernau.at>>
>> wrote:
>>
>>    Hi Samuel!
>>
>>    What exactly is the problem when "not ok".
>>     is signaling fine?
>>     what is the audio problem (one way audio? no audio at all?)
>>
>>    compare the SDP of the incoming INVITE with the outgoing INVITE. If
>>    you use rtpproxy, the IP address in the c line should be changed.
>>
>>
>>    regards
>>    klaus
>>
>>    Samuel Muller schrieb:
>>
>>        Hello,
>>
>>
>>        ok, I tested this in the same LAN :
>>
>>        Thomson st2030 -> Linksys spa941 : ok
>>        Linksys -> Thomson : not ok
>>        Linksys -> another working Linksys : ok
>>        Thomson -> another Thomson : not ok
>>
>>        Indeed there's no RTP proxying.
>>        I check all the SIP messages below, the only differences I saw
>>        are : "user=phone" and the rtpmap.
>>        concerning NAT there are behind the same router, the location
>>        saved is fine ?
>>
>>        in the kamailio log, the routing logic is the same.
>>        registration of all sip phones are ok, proxy auth too.
>>        the Thomsons can't find any other sip phones ...
>>
>>        here are all the invites (got with ngrep) :
>>
>>
>>        *** Here you have the INVITE message in the case Linksys =>
>>        Linksys (call ok)
>>
>>        U 2008/12/01 10:34:09.950709 77.246.81.162:25722
>>        <http://77.246.81.162:25722> <http://77.246.81.162:25722> ->
>>        77.246.81.132:5060 <http://77.246.81.132:5060>
>>        <http://77.246.81.132:5060>
>>        INVITE sip:0123451010 at sip.720.fr <sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>>>
>> SIP/2.0.
>>
>>        Via: SIP/2.0/UDP 192.168.0.120:5060;branch=z9hG4bK-bdbd130c.
>>        From: "linksys1" <sip:0123451005 at sip.720.fr<sip%3A0123451005 at sip.720.fr>
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>>        <mailto:sip%253A0123451005 at sip.720.fr<sip%25253A0123451005 at sip.720.fr>
>> >>>;tag=6fc94d28edd8dcaao0.
>>        To: "linksys2" <sip:0123451010 at sip.720.fr<sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >>>.
>>        Remote-Party-ID: "linksys1" <sip:0123451005 at sip.720.fr<sip%3A0123451005 at sip.720.fr>
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>>        <mailto:sip%253A0123451005 at sip.720.fr<sip%25253A0123451005 at sip.720.fr>
>> >>>;screen=yes;party=calling.
>>        Call-ID: 7dba9d80-33140832 at 192.168.0.120
>>        <mailto:7dba9d80-33140832 at 192.168.0.120>
>>        <mailto:7dba9d80-33140832 at 192.168.0.120
>>        <mailto:7dba9d80-33140832 at 192.168.0.120>>.
>>
>>        CSeq: 102 INVITE.
>>        Max-Forwards: 50.
>>        Proxy-Authorization: Digest
>>        username="0123451005",realm="sip.720.fr <http://sip.720.fr>
>>        <http://sip.720.fr
>> >",nonce="4933b0bd000000bb6b5025b195e2dac29e1a78759732fcfb",uri="
>> sip:0123451010 at sip.720.fr <sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >>",algorithm=MD5,response="2d6a83ad081b23632bbc40bcfb277daf",qop=auth,nc=00000001,cnonce="6dec9235".
>>
>>        Contact: "linksys1" <sip:0123451005 at 192.168.0.120:5060
>>        <http://sip:0123451005@192.168.0.120:5060>
>>        <http://sip:0123451005@192.168.0.120:5060>>.
>>
>>        Expires: 240.
>>        User-Agent: Linksys/SPA941-5.1.8.
>>        Content-Length: 259.
>>        Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
>>        Supported: replaces.
>>        Content-Type: application/sdp.
>>        .
>>        v=0.
>>        o=- 316723 316723 IN IP4 192.168.0.120 <http://192.168.0.120>
>>        <http://192.168.0.120>.
>>        s=-.
>>        c=IN IP4 192.168.0.120 <http://192.168.0.120>
>>        <http://192.168.0.120>.
>>
>>        t=0 0.
>>        m=audio 38544 RTP/AVP 18 0 8 101.
>>        a=rtpmap:18 G729a/8000.
>>        a=rtpmap:0 PCMU/8000.
>>        a=rtpmap:8 PCMA/8000.
>>        a=rtpmap:101 telephone-event/8000.
>>        a=fmtp:101 0-15.
>>        a=ptime:30.
>>        a=sendrecv.
>>
>>        *** Here you have the INVITE message in the case Linksys =>
>>        Thomson (call ok)
>>
>>        U 2008/12/01 10:39:43.317899 77.246.81.162:25722
>>        <http://77.246.81.162:25722> <http://77.246.81.162:25722> ->
>>        77.246.81.132:5060 <http://77.246.81.132:5060>
>>        <http://77.246.81.132:5060>
>>
>>        INVITE sip:0123451013 at sip.720.fr <sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>>>
>> SIP/2.0.
>>        Via: SIP/2.0/UDP 192.168.0.120:5060;branch=z9hG4bK-30acba56.
>>        From: "linksys1" <sip:0123451005 at sip.720.fr<sip%3A0123451005 at sip.720.fr>
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>>        <mailto:sip%253A0123451005 at sip.720.fr<sip%25253A0123451005 at sip.720.fr>
>> >>>;tag=4829c42d46f54ba1o0.
>>        To: "thomson1" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>>.
>>        Remote-Party-ID: "linksys1" <sip:0123451005 at sip.720.fr<sip%3A0123451005 at sip.720.fr>
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451005 at sip.720.fr<sip%253A0123451005 at sip.720.fr>
>>        <mailto:sip%253A0123451005 at sip.720.fr<sip%25253A0123451005 at sip.720.fr>
>> >>>;screen=yes;party=calling.
>>        Call-ID: ebfea81d-6dcc3871 at 192.168.0.120
>>        <mailto:ebfea81d-6dcc3871 at 192.168.0.120>
>>        <mailto:ebfea81d-6dcc3871 at 192.168.0.120
>>        <mailto:ebfea81d-6dcc3871 at 192.168.0.120>>.
>>
>>        CSeq: 102 INVITE.
>>        Max-Forwards: 50.
>>        Proxy-Authorization: Digest
>>        username="0123451005",realm="sip.720.fr <http://sip.720.fr>
>>        <http://sip.720.fr
>> >",nonce="4933b20b000000bcd4130811017007669127457c07480a0e",uri="
>> sip:0123451013 at sip.720.fr <sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>",algorithm=MD5,response="a888badf3b4a5d787f2a763dd8fd8c28",qop=auth,nc=00000001,cnonce="7405f5b".
>>        Contact: "linksys1" <sip:0123451005 at 192.168.0.120:5060
>>        <http://sip:0123451005@192.168.0.120:5060>
>>        <http://sip:0123451005@192.168.0.120:5060>>.
>>
>>        Expires: 240.
>>        User-Agent: Linksys/SPA941-5.1.8.
>>        Content-Length: 259.
>>        Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER.
>>        Supported: replaces.
>>        Content-Type: application/sdp.
>>        .
>>        v=0.
>>        o=- 350059 350059 IN IP4 192.168.0.120 <http://192.168.0.120>
>>        <http://192.168.0.120>.
>>        s=-.
>>        c=IN IP4 192.168.0.120 <http://192.168.0.120>
>>        <http://192.168.0.120>.
>>
>>        t=0 0.
>>        m=audio 38546 RTP/AVP 18 0 8 101.
>>        a=rtpmap:18 G729a/8000.
>>        a=rtpmap:0 PCMU/8000.
>>        a=rtpmap:8 PCMA/8000.
>>        a=rtpmap:101 telephone-event/8000.
>>        a=fmtp:101 0-15.
>>        a=ptime:30.
>>        a=sendrecv.
>>
>>        *** Here you have the INVITE message in the case Thomson =>
>>        Linksys (call not ok)
>>
>>        U 2008/12/01 10:41:54.428224 77.246.81.162:24507
>>        <http://77.246.81.162:24507> <http://77.246.81.162:24507> ->
>>        77.246.81.132:5060 <http://77.246.81.132:5060>
>>        <http://77.246.81.132:5060>
>>
>>        INVITE sip:0123451010 at sip.720.fr:5060;user=phone SIP/2.0.
>>        Via: SIP/2.0/UDP
>>        192.168.0.184:5060;branch=z9hG4bK7920248682981536932-1809931.
>>        From:
>>        "thomson1"<sip:0123451013 at sip.720.fr:5060
>> ;user=phone>;tag=c0a80101-1b9de5.
>>        To: <sip:0123451010 at sip.720.fr:5060;user=phone>.
>>        Call-ID: 1bc719-c0a80101-0-2 at 192.168.0.184
>>        <mailto:1bc719-c0a80101-0-2 at 192.168.0.184>
>>        <mailto:1bc719-c0a80101-0-2 at 192.168.0.184
>>        <mailto:1bc719-c0a80101-0-2 at 192.168.0.184>>.
>>
>>        CSeq: 2 INVITE.
>>        Max-Forwards: 70.
>>        Supported: timer, replaces.
>>        Session-Expires: 1800.
>>        Proxy-Authorization: Digest username="0123451013",
>>        realm="sip.720.fr <http://sip.720.fr> <http://sip.720.fr>",
>>        nonce="4933b28e000000bf60feb103ab85ee5f758ec510d7773f66",
>>        uri="sip:0123451010 at sip.720.fr:5060;user=phone",
>>        response="1eb59cbc25d6db05fafcd5d8b915da4a", algorithm=MD5,
>>        qop=auth, cnonce="1b9e0b", nc=00000001.
>>
>>        Allow:
>>
>>  INVITE,ACK,BYE,CANCEL,OPTIONS,PRACK,SUBSCRIBE,NOTIFY,UPDATE,REFER,REGISTER,INFO.
>>        Contact: <sip:0123451013 at 192.168.0.184:5060;user=phone>.
>>        User-Agent: THOMSON thomson1 hw5 fw1.63 00-14-7F-00-5E-0A.
>>        Allow-Events: refer,dialog,message-summary,check-sync,talk,hold.
>>        Content-Type: application/sdp.
>>        Content-Length: 299.
>>        .
>>        v=0.
>>        o=0123451013 1809894 1809894 IN IP4 192.168.0.184
>>        <http://192.168.0.184> <http://192.168.0.184>.
>>        s=-.
>>        c=IN IP4 192.168.0.184 <http://192.168.0.184>
>>        <http://192.168.0.184>.
>>
>>        t=0 0.
>>        m=audio 41000 RTP/AVP 8 0 18 4 96.
>>        a=rtpmap:8 PCMA/8000.
>>        a=rtpmap:0 PCMU/8000.
>>        a=rtpmap:18 G729/8000.
>>        a=fmtp:18 annexb=no.
>>        a=rtpmap:4 G723/8000.
>>        a=rtpmap:96 telephone-event/8000.
>>        a=fmtp:96 0-15.
>>        a=sendrecv.
>>
>>        *** Here you have the INVITE message in the case Thomson =>
>>        Thomson (call not ok)
>>
>>        U 2008/12/01 10:43:41.340288 77.246.81.162:30201
>>        <http://77.246.81.162:30201> <http://77.246.81.162:30201> ->
>>
>>        77.246.81.132:5060 <http://77.246.81.132:5060>
>>        <http://77.246.81.132:5060>
>>
>>        INVITE sip:0123451013 at sip.720.fr:5060;user=phone SIP/2.0.
>>        Via: SIP/2.0/UDP
>>        192.168.0.185:5060;branch=z9hG4bK9142470814203758154-1862706.
>>        From:
>>        "thomson2"<sip:0123451014 at sip.720.fr:5060
>> ;user=phone>;tag=c0a80101-1c6c04.
>>        To: <sip:0123451013 at sip.720.fr:5060;user=phone>.
>>        Call-ID: 1c93e7-c0a80101-0-2 at 192.168.0.185
>>        <mailto:1c93e7-c0a80101-0-2 at 192.168.0.185>
>>        <mailto:1c93e7-c0a80101-0-2 at 192.168.0.185
>>        <mailto:1c93e7-c0a80101-0-2 at 192.168.0.185>>.
>>
>>        CSeq: 2 INVITE.
>>        Max-Forwards: 70.
>>        Supported: timer, replaces.
>>        Session-Expires: 1800.Proxy-Authorization: Digest
>>        username="0123451014", realm="sip.720.fr <http://sip.720.fr>
>>        <http://sip.720.fr>",
>>        nonce="4933b2f9000000c25f1b77c7d99d35ceeb25c03a20f5e153",
>>        uri="sip:0123451013 at sip.720.fr:5060;user=phone",
>>        response="2c46b135e8453fce29308c03cf89aac5", algorithm=MD5,
>>        qop=auth, cnonce="1c6c33", nc=00
>>
>>        000001.
>>        Allow:
>>
>>  INVITE,ACK,BYE,CANCEL,OPTIONS,PRACK,SUBSCRIBE,NOTIFY,UPDATE,REFER,REGISTER,INFO.
>>        Contact: <sip:0123451014 at 192.168.0.185:5060;user=phone>.
>>        User-Agent: THOMSON thomson1 hw5 fw1.63 00-14-7F-E1-63-34.
>>        Allow-Events: refer,dialog,message-summary,check-sync,talk,hold.
>>        Content-Type: application/sdp.
>>        Content-Length: 299.
>>        .
>>        v=0.
>>        o=0123451014 1862661 1862661 IN IP4 192.168.0.185
>>        <http://192.168.0.185> <http://192.168.0.185>.
>>
>>        s=-.
>>        c=IN IP4 192.168.0.185 <http://192.168.0.185>
>>        <http://192.168.0.185>.
>>
>>        t=0 0.
>>        m=audio 41000 RTP/AVP 8 0 18 4 96.
>>        a=rtpmap:8 PCMA/8000.
>>        a=rtpmap:0 PCMU/8000.
>>        a=rtpmap:18 G729/8000.
>>        a=fmtp:18 annexb=no.
>>        a=rtpmap:4 G723/8000.
>>        a=rtpmap:96 telephone-event/8000.
>>        a=fmtp:96 0-15.
>>        a=sendrecv.
>>
>>
>>
>>        It's strange ...
>>
>>        .Sam.
>>
>>
>>        On Fri, Nov 28, 2008 at 12:52 PM, Klaus Darilion
>>        <klaus.mailinglists at pernau.at
>>        <mailto:klaus.mailinglists at pernau.at>
>>        <mailto:klaus.mailinglists at pernau.at
>>        <mailto:klaus.mailinglists at pernau.at>>> wrote:
>>
>>           the user=phone parameter in the Contact is probably not the
>>        problem
>>           - there can be any parameter there. Except the client does not
>>           accept its own contact.
>>
>>           I suspect a NAT problem
>>
>>           regards
>>           klaus
>>
>>           Samuel Muller schrieb:
>>
>>               Hello all,
>>
>>               I've a little problem with the SIP phone Thomson ST2030.
>>               When it registers, it auto-adds ";user=phone" in all the
>>        fields
>>               it can be.
>>               The problem is that it can't be called due to the contact
>>               header, kamailio can't found the phone.
>>
>>               I tried to delete the filed during the REGISTER and the
>> PROXY
>>               AUTH processes, with no success ...
>>
>>               If someone has a solution, many thanks !
>>
>>               -- --
>>               kamailio.cfg :
>>               -- --
>>               ...
>>                      # ;user=phone hack
>>                      if (search("^Contact:.*;user=phone"))
>>                      {
>>                              xlog("L_INFO", "-> user=phone found,
>>        remove it -
>>               F=$fu ContactHF=$ct");
>>                              replace_all(";user=phone", "\r\n");
>>                              #subst("/;user=phone$;$"))
>>                      }
>>               ...
>>
>>               => all the logs here :
>>
>>               -- --
>>               SQL result
>>               -- --
>>
>>               Database: openser
>>               SQL query: SELECT * FROM `location` WHERE `id` = 383
>>        LIMIT 0, 30 ;
>>
>>               id             383
>>               username     0123451013
>>               domain             sip.720.fr <http://sip.720.fr>
>>        <http://sip.720.fr>
>>               <http://sip.720.fr>
>>
>>               contact     sip:0123451013 at 192.168.0.158:5060;user=phone
>>               received     sip:77.246.81.162:1902
>>        <http://77.246.81.162:1902> <http://77.246.81.162:1902>
>>               <http://77.246.81.162:1902>
>>
>>               path             NULL
>>               expires     2008-11-28 13:02:16
>>               q             0.00
>>               callid             18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>
>>               <mailto:18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>>
>>               <mailto:18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>
>>               <mailto:18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>>>
>>
>>               cseq             270
>>               last_modified     2008-11-28 12:02:16
>>               flags             0
>>               cflags             64
>>               user_agent     THOMSON ST2030 hw5 fw1.63 00-14-7F-00-5E-0A
>>               socket             udp:77.246.81.132:5060
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> <http://77.246.81.132:5060>
>>
>>
>>               methods     NULL
>>
>>               -- --
>>               kamailio REGISTER sip buffer
>>               -- --
>>
>>               REGISTER sip:sip.720.fr <http://sip.720.fr>
>>        <http://sip.720.fr>
>>               <http://sip.720.fr>;user=phone SIP/2.0
>>
>>               Via: SIP/2.0/UDP
>>               192.168.0.158:5060
>> ;branch=z9hG4bK363142985921875976-158787787
>>               From:
>>                     <sip:0123451013 at sip.720.fr:5060
>> ;user=phone>;tag=c0a80101-976e8ab
>>               To: <sip:0123451013 at sip.720.fr:5060;user=phone>
>>               Call-ID: 18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>
>>               <mailto:18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>>
>>               <mailto:18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>
>>               <mailto:18786315-c0a80101-5-a at 192.168.0.158
>>        <mailto:18786315-c0a80101-5-a at 192.168.0.158>>>
>>
>>               CSeq: 250 REGISTER
>>               Max-Forwards: 69
>>               Expires: 3600
>>               Contact: <sip:0123451013 at 192.168.0.158:5060;user=phone>
>>               Authorization: Digest username="0123451013",
>>        realm="sip.720.fr <http://sip.720.fr>
>>               <http://sip.720.fr> <http://sip.720.fr>",
>>               nonce="492f8a92000000697e7fefd30ce752d7e50c6166da2cc6e2",
>>               uri="sip:sip.720.fr <http://sip.720.fr>
>>        <http://sip.720.fr> <http://sip.720.fr>",
>>
>>               response="37f8ec824ba77eb37583f38f2a509f77",
>>
>>               algorithm=MD5, qop=auth, cnonce="976e8cb", nc=00000001
>>               User-Agent: THOMSON ST2030 hw5 fw1.63 00-14-7F-00-5E-0A
>>               Allow-Events:
>>        refer,dialog,message-summary,check-sync,talk,hold
>>               Content-Length: 0
>>
>>               -- --
>>               ngrep log :
>>               -- --
>>
>>               U 2008/11/28 12:13:59.813649 77.246.81.162:8680
>>        <http://77.246.81.162:8680>
>>               <http://77.246.81.162:8680> <http://77.246.81.162:8680> ->
>>
>>               77.246.81.132:5060 <http://77.246.81.132:5060>
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060>
>>               INVITE sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>>>>
>> SIP/2.0.
>>
>>
>>               Via: SIP/2.0/UDP 192.168.0.113:5060
>> ;branch=z9hG4bK-eb23842c.
>>               From: "Sam" <sip:0123451010 at sip.720.fr<sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>>        <mailto:sip%25253A0123451010 at sip.720.fr<sip%2525253A0123451010 at sip.720.fr>
>> >>>>;tag=4209e88c969ca7dfo0.
>>
>>               To: "st2030" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>>.
>>
>>               Remote-Party-ID: "Sam" <sip:0123451010 at sip.720.fr<sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>>        <mailto:sip%25253A0123451010 at sip.720.fr<sip%2525253A0123451010 at sip.720.fr>
>> >>>>;screen=yes;party=calling.
>>
>>               Call-ID: 39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>>.
>>
>>               CSeq: 102 INVITE.
>>               Max-Forwards: 50.
>>               Proxy-Authorization: Digest
>>               username="0123451010",realm="sip.720.fr
>>        <http://sip.720.fr> <http://sip.720.fr>
>>                     <http://sip.720.fr
>> >",nonce="492fd3a300000094c9e8b4f3805f7f96dc3f36f981a64570",uri="
>> sip:0123451013 at sip.720.fr <sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>",algorithm=MD5,response="1538e1ac3e3181f8bfb6f473f2470a6a",qop=auth,nc=00000001,cnonce="7c8a76fd".
>>
>>
>>               Contact: "Sam" <sip:0123451010 at 192.168.0.113:5060
>>        <http://sip:0123451010@192.168.0.113:5060>
>>               <http://sip:0123451010@192.168.0.113:5060>
>>               <http://sip:0123451010@192.168.0.113:5060>>.
>>
>>               Expires: 240.
>>               User-Agent: Linksys/SPA941-5.1.8.
>>               Content-Length: 263.
>>               Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS,
>>        PRACK,
>>               REFER.
>>               Supported: 100rel, replaces.
>>               Content-Type: application/sdp.
>>               .
>>               v=0.
>>               o=- 33629308 33629308 IN IP4 192.168.0.113
>>        <http://192.168.0.113>
>>               <http://192.168.0.113> <http://192.168.0.113>.
>>
>>               s=-.
>>               c=IN IP4 192.168.0.113 <http://192.168.0.113>
>>        <http://192.168.0.113>
>>               <http://192.168.0.113>.
>>
>>               t=0 0.
>>               m=audio 35692 RTP/AVP 18 0 8 101.
>>               a=rtpmap:18 G729a/8000.
>>               a=rtpmap:0 PCMU/8000.
>>               a=rtpmap:8 PCMA/8000.
>>               a=rtpmap:101 telephone-event/8000.
>>               a=fmtp:101 0-15.
>>               a=ptime:30.
>>               a=sendrecv.
>>
>>
>>               U 2008/11/28 12:13:59.820056 77.246.81.132:5060
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> <http://77.246.81.132:5060> ->
>>
>>               77.246.81.162:8680 <http://77.246.81.162:8680>
>>        <http://77.246.81.162:8680>
>>               <http://77.246.81.162:8680>
>>
>>               SIP/2.0 100 Trying.
>>               Via: SIP/2.0/UDP
>>                     192.168.0.113:5060
>> ;branch=z9hG4bK-eb23842c;rport=8680;received=77.246.81.162
>>        <http://77.246.81.162>
>>               <http://77.246.81.162> <http://77.246.81.162>.
>>
>>               From: "Sam" <sip:0123451010 at sip.720.fr<sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>>        <mailto:sip%25253A0123451010 at sip.720.fr<sip%2525253A0123451010 at sip.720.fr>
>> >>>>;tag=4209e88c969ca7dfo0.
>>
>>               To: "st2030" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>>.
>>
>>               Call-ID: 39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>>.
>>
>>               CSeq: 102 INVITE.
>>               Server: 720 DEGRES SIP PROXY.
>>               Content-Length: 0.
>>               Warning: 392 77.246.81.132:5060
>>        <http://77.246.81.132:5060> <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> "Noisy feedback tells:
>>  pid=14141
>>               req_src_ip=77.246.81.162 <http://77.246.81.162>
>>        <http://77.246.81.162>
>>               <http://77.246.81.162> req_src_port=8680
>>               in_uri=sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>
>>
>>               out_uri=sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>>>>
>> via_cnt==1".
>>
>>               .
>>
>>
>>               U 2008/11/28 12:13:59.882639 77.246.81.132:5060
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> <http://77.246.81.132:5060> ->
>>
>>               77.246.81.162:1902 <http://77.246.81.162:1902>
>>        <http://77.246.81.162:1902>
>>               <http://77.246.81.162:1902>
>>
>>               INVITE sip:0123451013 at 192.168.0.158:5060;user=phone
>> SIP/2.0.
>>               Record-Route: <sip:77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>                     <http://77.246.81.132
>> >;lr=on;ftag=4209e88c969ca7dfo0;nat=yes;vsf=dTRjN2NvOSh5O2l3chRUKWUpZWo5MGkrLFxGBRldBw-->.
>>               Via: SIP/2.0/UDP 77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>               <http://77.246.81.132>;branch=z9hG4bK821.3a570854.0.
>>               Via: SIP/2.0/UDP
>>               192.168.0.113:5060;rport=8680;received=77.246.81.162
>>        <http://77.246.81.162>
>>               <http://77.246.81.162>
>>               <http://77.246.81.162>;branch=z9hG4bK-eb23842c.
>>
>>               From: "Anonymous"
>>               <sip:anonymous at anonymous.invalid>;tag=4209e88c969ca7dfo0.
>>               To: "st2030" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>>.
>>
>>               Call-ID: 39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>>.
>>
>>               CSeq: 102 INVITE.
>>               Max-Forwards: 49.
>>               Contact: "Sam" <sip:0123451010 at 77.246.81.162:8680
>>        <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>>.
>>
>>               Expires: 240.
>>               User-Agent: Linksys/SPA941-5.1.8.
>>               Content-Length: 281.
>>               Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS,
>>        PRACK,
>>               REFER.
>>               Supported: 100rel, replaces.
>>               Content-Type: application/sdp.
>>               Privacy: id.
>>               Remote-Party-ID:
>> <<null>>;party=caller;privacy=yes;screen=no.
>>               .
>>               v=0.
>>               o=- 33629308 33629308 IN IP4 192.168.0.113
>>        <http://192.168.0.113>
>>               <http://192.168.0.113> <http://192.168.0.113>.
>>
>>               s=-.
>>               c=IN IP4 77.246.81.133 <http://77.246.81.133>
>>        <http://77.246.81.133>
>>               <http://77.246.81.133>.
>>
>>               t=0 0.
>>               m=audio 35132 RTP/AVP 18 0 8 101.
>>               a=rtpmap:18 G729a/8000.
>>               a=rtpmap:0 PCMU/8000.
>>               a=rtpmap:8 PCMA/8000.
>>               a=rtpmap:101 telephone-event/8000.
>>               a=fmtp:101 0-15.
>>               a=ptime:30.
>>               a=sendrecv.
>>               a=nortpproxy:yes.
>>
>>
>>               U 2008/11/28 12:14:00.273883 77.246.81.132:5060
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> <http://77.246.81.132:5060> ->
>>
>>               77.246.81.162:1902 <http://77.246.81.162:1902>
>>        <http://77.246.81.162:1902>
>>               <http://77.246.81.162:1902>
>>
>>               INVITE sip:0123451013 at 192.168.0.158:5060;user=phone
>> SIP/2.0.
>>               Record-Route: <sip:77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>                     <http://77.246.81.132
>> >;lr=on;ftag=4209e88c969ca7dfo0;nat=yes;vsf=dTRjN2NvOSh5O2l3chRUKWUpZWo5MGkrLFxGBRldBw-->.
>>               Via: SIP/2.0/UDP 77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>               <http://77.246.81.132>;branch=z9hG4bK821.3a570854.0.
>>               Via: SIP/2.0/UDP
>>               192.168.0.113:5060;rport=8680;received=77.246.81.162
>>        <http://77.246.81.162>
>>               <http://77.246.81.162>
>>               <http://77.246.81.162>;branch=z9hG4bK-eb23842c.
>>
>>               From: "Anonymous"
>>               <sip:anonymous at anonymous.invalid>;tag=4209e88c969ca7dfo0.
>>               To: "st2030" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>>.
>>
>>               Call-ID: 39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>>.
>>
>>               CSeq: 102 INVITE.
>>               Max-Forwards: 49.
>>               Contact: "Sam" <sip:0123451010 at 77.246.81.162:8680
>>        <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>>.
>>
>>               Expires: 240.
>>               User-Agent: Linksys/SPA941-5.1.8.
>>               Content-Length: 281.
>>               Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS,
>>        PRACK,
>>               REFER.
>>               Supported: 100rel, replaces.
>>               Content-Type: application/sdp.
>>               Privacy: id.
>>               Remote-Party-ID:
>> <<null>>;party=caller;privacy=yes;screen=no.
>>               .
>>               v=0.
>>               o=- 33629308 33629308 IN IP4 192.168.0.113
>>        <http://192.168.0.113>
>>               <http://192.168.0.113> <http://192.168.0.113>.
>>
>>               s=-.
>>               c=IN IP4 77.246.81.133 <http://77.246.81.133>
>>        <http://77.246.81.133>
>>               <http://77.246.81.133>.
>>
>>               t=0 0.
>>               m=audio 35132 RTP/AVP 18 0 8 101.
>>               a=rtpmap:18 G729a/8000.
>>               a=rtpmap:0 PCMU/8000.
>>               a=rtpmap:8 PCMA/8000.
>>               a=rtpmap:101 telephone-event/8000.
>>               a=fmtp:101 0-15.
>>               a=ptime:30.
>>               a=sendrecv.
>>               a=nortpproxy:yes.
>>
>>
>>               U 2008/11/28 12:14:01.272604 77.246.81.132:5060
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> <http://77.246.81.132:5060> ->
>>
>>               77.246.81.162:1902 <http://77.246.81.162:1902>
>>        <http://77.246.81.162:1902>
>>               <http://77.246.81.162:1902>
>>
>>               INVITE sip:0123451013 at 192.168.0.158:5060;user=phone
>> SIP/2.0.
>>               Record-Route: <sip:77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>                     <http://77.246.81.132
>> >;lr=on;ftag=4209e88c969ca7dfo0;nat=yes;vsf=dTRjN2NvOSh5O2l3chRUKWUpZWo5MGkrLFxGBRldBw-->.
>>               Via: SIP/2.0/UDP 77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>               <http://77.246.81.132>;branch=z9hG4bK821.3a570854.0.
>>               Via: SIP/2.0/UDP
>>               192.168.0.113:5060;rport=8680;received=77.246.81.162
>>        <http://77.246.81.162>
>>               <http://77.246.81.162>
>>               <http://77.246.81.162>;branch=z9hG4bK-eb23842c.
>>
>>               From: "Anonymous"
>>               <sip:anonymous at anonymous.invalid>;tag=4209e88c969ca7dfo0.
>>               To: "st2030" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>>.
>>
>>               Call-ID: 39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>>.
>>
>>               CSeq: 102 INVITE.
>>               Max-Forwards: 49.
>>               Contact: "Sam" <sip:0123451010 at 77.246.81.162:8680
>>        <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>>.
>>
>>               Expires: 240.
>>               User-Agent: Linksys/SPA941-5.1.8.
>>               Content-Length: 281.
>>               Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS,
>>        PRACK,
>>               REFER.
>>               Supported: 100rel, replaces.
>>               Content-Type: application/sdp.
>>               Privacy: id.
>>               Remote-Party-ID:
>> <<null>>;party=caller;privacy=yes;screen=no.
>>               .
>>               v=0.
>>               o=- 33629308 33629308 IN IP4 192.168.0.113
>>        <http://192.168.0.113>
>>               <http://192.168.0.113> <http://192.168.0.113>.
>>
>>               s=-.
>>               c=IN IP4 77.246.81.133 <http://77.246.81.133>
>>        <http://77.246.81.133>
>>               <http://77.246.81.133>.
>>
>>               t=0 0.
>>               m=audio 35132 RTP/AVP 18 0 8 101.
>>               a=rtpmap:18 G729a/8000.
>>               a=rtpmap:0 PCMU/8000.
>>               a=rtpmap:8 PCMA/8000.
>>               a=rtpmap:101 telephone-event/8000.
>>               a=fmtp:101 0-15.
>>               a=ptime:30.
>>               a=sendrecv.
>>               a=nortpproxy:yes.
>>
>>
>>               U 2008/11/28 12:14:03.283852 77.246.81.132:5060
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060> <http://77.246.81.132:5060> ->
>>
>>               77.246.81.162:1902 <http://77.246.81.162:1902>
>>        <http://77.246.81.162:1902>
>>               <http://77.246.81.162:1902>
>>
>>               INVITE sip:0123451013 at 192.168.0.158:5060;user=phone
>> SIP/2.0.
>>               Record-Route: <sip:77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>                     <http://77.246.81.132
>> >;lr=on;ftag=4209e88c969ca7dfo0;nat=yes;vsf=dTRjN2NvOSh5O2l3chRUKWUpZWo5MGkrLFxGBRldBw-->.
>>               Via: SIP/2.0/UDP 77.246.81.132 <http://77.246.81.132>
>>        <http://77.246.81.132>
>>               <http://77.246.81.132>;branch=z9hG4bK821.3a570854.0.
>>               Via: SIP/2.0/UDP
>>               192.168.0.113:5060;rport=8680;received=77.246.81.162
>>        <http://77.246.81.162>
>>               <http://77.246.81.162>
>>               <http://77.246.81.162>;branch=z9hG4bK-eb23842c.
>>
>>               From: "Anonymous"
>>               <sip:anonymous at anonymous.invalid>;tag=4209e88c969ca7dfo0.
>>               To: "st2030" <sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>
>> >>>>.
>>
>>               Call-ID: 39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>
>>               <mailto:39d2f3d0-b283756b at 192.168.0.113
>>        <mailto:39d2f3d0-b283756b at 192.168.0.113>>>.
>>
>>               CSeq: 102 INVITE.
>>               Max-Forwards: 49.
>>               Contact: "Sam" <sip:0123451010 at 77.246.81.162:8680
>>        <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>
>>               <http://sip:0123451010@77.246.81.162:8680>>.
>>
>>               Expires: 240.
>>               User-Agent: Linksys/SPA941-5.1.8.
>>               Content-Length: 281.
>>               Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS,
>>        PRACK,
>>               REFER.
>>               Supported: 100rel, replaces.
>>               Content-Type: application/sdp.
>>               Privacy: id.
>>               Remote-Party-ID:
>> <<null>>;party=caller;privacy=yes;screen=no.
>>               .
>>               v=0.
>>               o=- 33629308 33629308 IN IP4 192.168.0.113
>>        <http://192.168.0.113>
>>               <http://192.168.0.113> <http://192.168.0.113>.
>>
>>               s=-.
>>               c=IN IP4 77.246.81.133 <http://77.246.81.133>
>>        <http://77.246.81.133>
>>               <http://77.246.81.133>.
>>
>>               t=0 0.
>>               m=audio 35132 RTP/AVP 18 0 8 101.
>>               a=rtpmap:18 G729a/8000.
>>               a=rtpmap:0 PCMU/8000.
>>               a=rtpmap:8 PCMA/8000.
>>               a=rtpmap:101 telephone-event/8000.
>>               a=fmtp:101 0-15.
>>               a=ptime:30.
>>               a=sendrecv.
>>               a=nortpproxy:yes.
>>
>>
>>               U 2008/11/28 12:14:04.905612 77.246.81.162:8680
>>        <http://77.246.81.162:8680>
>>               <http://77.246.81.162:8680> <http://77.246.81.162:8680> ->
>>
>>               77.246.81.132:5060 <http://77.246.81.132:5060>
>>        <http://77.246.81.132:5060>
>>               <http://77.246.81.132:5060>
>>               CANCEL sip:0123451013 at sip.720.fr<sip%3A0123451013 at sip.720.fr>
>>        <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451013 at sip.720.fr<sip%253A0123451013 at sip.720.fr>
>>        <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451013 at sip.720.fr<sip%25253A0123451013 at sip.720.fr>
>>        <mailto:sip%25253A0123451013 at sip.720.fr<sip%2525253A0123451013 at sip.720.fr>>>>
>> SIP/2.0.
>>
>>
>>               Via: SIP/2.0/UDP 192.168.0.113:5060
>> ;branch=z9hG4bK-eb23842c.
>>               From: "Sam" <sip:0123451010 at sip.720.fr<sip%3A0123451010 at sip.720.fr>
>>        <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >>
>>               <mailto:sip%3A0123451010 at sip.720.fr<sip%253A0123451010 at sip.720.fr>
>>        <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>> >
>>               <mailto:sip%253A0123451010 at sip.720.fr<sip%25253A0123451010 at sip.720.fr>
>>        <mailto:sip%25253A0123451010@ <sip%2525253A0123451010 at sip.720.fr>
>
> ...
>
> [Message clipped]




-- 
Samuel MULLER
Ingénieur Reseaux & Telecom
720 DEGRES
+33 (0)663 128 505
sml at 720.fr
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