[Users] Problem with dialog module

Bogdan-Andrei Iancu bogdan at voice-system.ro
Tue Apr 3 11:00:58 CEST 2007


Hi Leonid,

you should not do RR for the sequential request. According to RFC3261, 
the routing set is established by the initial request (formed by RR set 
+ contact) and it does not change across the dialog lifetime.

The clients should ignore any RR from the sequential requests (like 
re-INVITEs) and to keep using the RR set form the original INVITE.

regards,
bogdan

Leonid Fainshtein wrote:
> Hi Bogdan,
> Please check the ngrep output. I put my comments along with the trace:
>
>
> 1. ******  The  203 at 172.17.4.22 calls 3525 at 172.17.4.22
>
> U 2007/03/18 12:54:09.758887 172.17.2.11:5060 -> 172.17.4.22:5060
>   INVITE sip:3525 at 172.17.4.22:5060 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060
>   ;branch=z9hG4bK3796032784-846..Max-Forwards: 70..Allow:
> INVITE,OPTIONS,CANC
>   EL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Supported: replaces..User-Agent:
> Claro
>   BS3202 A454..From: <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip
>   :3525 at 172.17.4.22:5060>..Call-ID: 3795992784-846..CSeq: 2
> INVITE..Contact:
>   <sip:203 at 172.17.2.11:5060>..Content-Type:
> application/sdp..Proxy-Authorizat
>   ion: Digest
> username="613",realm="172.17.4.22",nonce="45fd6fdd9e385352f9c63
>  
> 342cc574c454939f3ca",uri="sip:3525 at 172.17.4.22:5060",response="7156ea61b
> 864
>   a4ab937d17f42c7cd45a",algorithm=md5..Content-Length:
> 237....v=0..o=Claro 0
>   1 IN IP4 172.17.2.11..s=Claro..c=IN IP4 172.17.2.11..t=0 0..m=audio
> 30006 R
>   TP/AVP 0 101 120..a=rtpmap:0 PCMU/8000..a=rtpmap:101
> TELEPHONE-EVENT/8000..
>   a=fmtp:101 0-16..a=rtpmap:120 BSRTCP/8000..a=fmtp:120
> ver2..a=sendrecv..
>
> U 2007/03/18 12:54:09.766562 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP
> 172.17
>   .2.11:5060;branch=z9hG4bK3796032784-846..From:
> <sip:203 at 172.17.4.22>;tag=hs
>   sUA_3795992784-846..To: <sip:3525 at 172.17.4.22:5060>..Call-ID:
> 3795992784-84
>   6..CSeq: 2 INVITE..Server: ClaroSIS (Openser 1.1.1
> (i386/linux))..Content-L
>   ength: 0..Warning: 392 172.17.4.22:5060 "Noisy feedback tells:
> pid=4003 re
>   q_src_ip=172.17.2.11 req_src_port=5060
> in_uri=sip:3525 at 172.17.4.22:5060 out
>   _uri=sip:3525 at 172.17.2.14;user=phone via_cnt==1"....
>
> U 2007/03/18 12:54:09.766871 172.17.4.22:5060 -> 172.17.2.14:5060
>   INVITE sip:3525 at 172.17.2.14;user=phone SIP/2.0..Record-Route:
> <sip:172.17.4
>   .22;lr=on;ftag=hssUA_3795992784-846;did=55f.4491d5b2>..Via:
> SIP/2.0/UDP 172
>   .17.4.22;branch=z9hG4bKbd8b.80bd0bc3.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;b
>   ranch=z9hG4bK3796032784-846..Max-Forwards: 69..Allow:
> INVITE,OPTIONS,CANCEL
>   ,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Supported: replaces..User-Agent:
> Claro BS
>   3202 A454..From: <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3
>   525 at 172.17.4.22:5060>..Call-ID: 3795992784-846..CSeq: 2
> INVITE..Contact: <s
>   ip:203 at 172.17.2.11:5060>..Content-Type:
> application/sdp..Content-Length: 23
>   7....v=0..o=Claro 0 1 IN IP4 172.17.2.11..s=Claro..c=IN IP4
> 172.17.2.11..t=
>   0 0..m=audio 30006 RTP/AVP 0 101 120..a=rtpmap:0
> PCMU/8000..a=rtpmap:101 TE
>   LEPHONE-EVENT/8000..a=fmtp:101 0-16..a=rtpmap:120
> BSRTCP/8000..a=fmtp:120 v
>   er2..a=sendrecv..
>
> U 2007/03/18 12:54:09.772591 172.17.2.14:5060 -> 172.17.4.22:5060
>   SIP/2.0 100 Trying..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKbd8b.80bd0bc
>   3.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3796032784-846..From:
>   <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5
>   060>..Call-ID: 3795992784-846..CSeq: 2 INVITE..User-Agent: Grandstream
> BT11
>   0 1.0.8.16..Content-Length: 0....
>
> U 2007/03/18 12:54:09.775043 172.17.2.14:5060 -> 172.17.4.22:5060
>   SIP/2.0 180 Ringing..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKbd8b.80bd0b
>   c3.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3796032784-846..Recor
>   d-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846;did=55f.4491d5b2>
>   ..From: <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.1
>   7.4.22:5060>;tag=61645575ae245b55..Call-ID: 3795992784-846..CSeq: 2
> INVITE.
>   .User-Agent: Grandstream BT110 1.0.8.16..Content-Length: 0....
>
> U 2007/03/18 12:54:09.777250 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 180 Ringing..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK379603
>   2784-846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846;di
>   d=55f.4491d5b2>..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
>   <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..Call-ID:
> 3795992784-846..
>   CSeq: 2 INVITE..User-Agent: Grandstream BT110
> 1.0.8.16..Content-Length: 0..
>   ..
>
> U 2007/03/18 12:54:13.673700 172.17.2.14:5060 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKbd8b.80bd0bc3.0.
>   .Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3796032784-846..Record-Rou
>   te:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846;did=55f.4491d5b2>..Fro
>   m: <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.2
>   2:5060>;tag=61645575ae245b55..Call-ID: 3795992784-846..CSeq: 2
> INVITE..User
>   -Agent: Grandstream BT110 1.0.8.16..Contact:
> <sip:3525 at 172.17.2.14;user=pho
>   ne>..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Cont
>   ent-Type: application/sdp..Supported: replaces..Content-Length:
> 153....v=0.
>   .o=3525 8000 8000 IN IP4 172.17.2.14..s=SIP Call..c=IN IP4
> 172.17.2.14..t=0
>    0..m=audio 5004 RTP/AVP 0..a=sendrecv..a=rtpmap:0
> PCMU/8000..a=ptime:20..
>
> U 2007/03/18 12:54:13.676298 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3796032784-
>   846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846;did=55f
>   .4491d5b2>..From: <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:
>   3525 at 172.17.4.22:5060>;tag=61645575ae245b55..Call-ID:
> 3795992784-846..CSeq:
>    2 INVITE..User-Agent: Grandstream BT110 1.0.8.16..Contact:
> <sip:3525 at 172.1
>   7.2.14:5060;user=phone>..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,
>   INFO,SUBSCRIBE..Content-Type: application/sdp..Supported:
> replaces..Content
>   -Length: 153....v=0..o=3525 8000 8000 IN IP4 172.17.2.14..s=SIP
> Call..c=IN
>   IP4 172.17.2.14..t=0 0..m=audio 5004 RTP/AVP 0..a=sendrecv..a=rtpmap:0
> PCMU
>   /8000..a=ptime:20..
>
> U 2007/03/18 12:54:13.721732 172.17.2.11:5060 -> 172.17.4.22:5060
>   ACK sip:3525 at 172.17.2.14:5060;user=phone SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2
>   .11:5060;branch=z9hG4bK3799992784-846..Route:
> <sip:172.17.4.22;lr=on;ftag=h
>   ssUA_3795992784-846;did=55f.4491d5b2>..Max-Forwards:
> 70..Proxy-Authorizatio
>   n: Digest
> username="613",realm="172.17.4.22",nonce="45fd6fdd9e385352f9c6334
>  
> 2cc574c454939f3ca",uri="sip:3525 at 172.17.4.22:5060",response="7156ea61b86
> 4a4
>   ab937d17f42c7cd45a",algorithm=md5..User-Agent: Claro BS3202
> A454..From: <si
>   p:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060
>   >;tag=61645575ae245b55..Call-ID: 3795992784-846..CSeq: 2 ACK..Contact:
> <sip
>   :203 at 172.17.2.11:5060>..Content-Length: 0....
>
> U 2007/03/18 12:54:13.724056 172.17.4.22:5060 -> 172.17.2.14:5060
>   ACK sip:3525 at 172.17.2.14:5060;user=phone SIP/2.0..Record-Route:
> <sip:172.17
>   .4.22;lr=on;ftag=hssUA_3795992784-846>..Via: SIP/2.0/UDP
> 172.17.4.22;branch
>   =z9hG4bKbd8b.80bd0bc3.2..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK37
>   99992784-846..Max-Forwards: 69..Proxy-Authorization: Digest
> username="613",
>  
> realm="172.17.4.22",nonce="45fd6fdd9e385352f9c63342cc574c454939f3ca",uri
> ="s
>  
> ip:3525 at 172.17.4.22:5060",response="7156ea61b864a4ab937d17f42c7cd45a",al
> gor
>   ithm=md5..User-Agent: Claro BS3202 A454..From:
> <sip:203 at 172.17.4.22>;tag=hs
>   sUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..C
>   all-ID: 3795992784-846..CSeq: 2 ACK..Contact:
> <sip:203 at 172.17.2.11:5060>..C
>   ontent-Length: 0....
>
> 2. ******   The call is established. The did=55f.4491d5b2.
> Now 3525 at 172.17.4.22 initiates call transfer. It sends re-INVITE in
> order to mute
> the call partner. The header filed Route contains did=55f.4491d5b2.
>
> U 2007/03/18 12:54:16.394546 172.17.2.14:5060 -> 172.17.4.22:5060
>   INVITE sip:203 at 172.17.2.11:5060 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.14;branc
>   h=z9hG4bKb9469def476f37f2..Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992
>   784-846;did=55f.4491d5b2>..From:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae
>   245b55..To: <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..Contact:
> <sip:3
>   525 at 172.17.2.14;user=phone>..Supported: replaces..Call-ID:
> 3795992784-846..
>   CSeq: 321 INVITE..User-Agent: Grandstream BT110
> 1.0.8.16..Max-Forwards: 70.
>   .Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-
>   Type: application/sdp..Content-Length: 320....v=0..o=3525 8000 8001 IN
> IP4
>   172.17.2.14..s=SIP Call..c=IN IP4 0.0.0.0..t=0 0..m=audio 5004 RTP/AVP
> 0 8
>   18 4 99 2 9..a=sendonly..a=rtpmap:0 PCMU/8000..a=rtpmap:8
> PCMA/8000..a=rtpm
>   ap:18 G729/8000..a=rtpmap:4 G723/8000..a=rtpmap:99
> iLBC/8000..a=fmtp:99 mod
>   e=20..a=rtpmap:2 G726-32/8000..a=rtpmap:9 G722/16000..a=ptime:20..
>
> U 2007/03/18 12:54:16.396983 172.17.4.22:5060 -> 172.17.2.14:5060
>   SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP
> 172.17
>   .2.14;branch=z9hG4bKb9469def476f37f2..From:
> <sip:3525 at 172.17.4.22:5060>;tag
>   =61645575ae245b55..To:
> <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..Call
>   -ID: 3795992784-846..CSeq: 321 INVITE..Server: ClaroSIS (Openser 1.1.1
> (i38
>   6/linux))..Content-Length: 0..Warning: 392 172.17.4.22:5060 "Noisy
> feedback
>    tells:  pid=3997 req_src_ip=172.17.2.14 req_src_port=5060
> in_uri=sip:203 at 1
>   72.17.2.11:5060 out_uri=sip:203 at 172.17.2.11:5060 via_cnt==1"....
>
> 3. ******   OpenSer sends the re-INVITE to the transferee. Please note,
> that "did"
> doesn't appear in the Record-Route. As result of that, BYE for this call
> will
> no have "did" parameter and the dialog will appear as not closed.
>
> U 2007/03/18 12:54:16.397307 172.17.4.22:5060 -> 172.17.2.11:5060
>   INVITE sip:203 at 172.17.2.11:5060 SIP/2.0..Record-Route:
> <sip:172.17.4.22;lr=
>   on;ftag=61645575ae245b55>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK4751.
>   82bc6f96.0..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bKb9469def476f37f2..Fr
>   om: <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4
>   .22>;tag=hssUA_3795992784-846..Contact:
> <sip:3525 at 172.17.2.14;user=phone>..
>   Supported: replaces..Call-ID: 3795992784-846..CSeq: 321
> INVITE..User-Agent:
>    Grandstream BT110 1.0.8.16..Max-Forwards: 69..Allow:
> INVITE,ACK,CANCEL,BYE
>   ,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Type:
> application/sdp..Conten
>   t-Length: 320....v=0..o=3525 8000 8001 IN IP4 172.17.2.14..s=SIP
> Call..c=IN
>    IP4 0.0.0.0..t=0 0..m=audio 5004 RTP/AVP 0 8 18 4 99 2
> 9..a=sendonly..a=rt
>   pmap:0 PCMU/8000..a=rtpmap:8 PCMA/8000..a=rtpmap:18
> G729/8000..a=rtpmap:4 G
>   723/8000..a=rtpmap:99 iLBC/8000..a=fmtp:99 mode=20..a=rtpmap:2
> G726-32/8000
>   ..a=rtpmap:9 G722/16000..a=ptime:20..
>
> U 2007/03/18 12:54:16.435210 172.17.2.11:5060 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK4751.82bc6f96.0,
>   SIP/2.0/UDP 172.17.2.14;branch=z9hG4bKb9469def476f37f2..Record-Route:
> <sip:
>   172.17.4.22;lr=on;ftag=61645575ae245b55>..Server: Claro BS3202
> A454..From:
>   <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.22>
>   ;tag=hssUA_3795992784-846..Call-ID: 3795992784-846..CSeq: 321
> INVITE..Conta
>   ct: <sip:203 at 172.17.2.11:5060>..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK,
>   INFO,REFER,NOTIFY..Content-Type: application/sdp..Content-Length:
> 167....v=
>   0..o=Claro 1174230681570 1174230681 IN IP4 172.17.2.11..s=Claro..c=IN
> IP4 1
>   72.17.2.11..t=0 0..m=audio 30006 RTP/AVP 0..a=rtpmap:0
> PCMU/8000..a=ptime:2
>   0..a=recvonly..
>
> U 2007/03/18 12:54:16.436772 172.17.4.22:5060 -> 172.17.2.14:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bKb9469def476f37f2
>   ..Record-Route: <sip:172.17.4.22;lr=on;ftag=61645575ae245b55>..Server:
> Clar
>   o BS3202 A454..From:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
>   <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..Call-ID:
> 3795992784-846..CS
>   eq: 321 INVITE..Contact: <sip:203 at 172.17.2.11:5060>..Allow:
> INVITE,OPTIONS,
>   CANCEL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Content-Type:
> application/sdp..Cont
>   ent-Length: 167....v=0..o=Claro 1174230681570 1174230681 IN IP4
> 172.17.2.11
>   ..s=Claro..c=IN IP4 172.17.2.11..t=0 0..m=audio 30006 RTP/AVP
> 0..a=rtpmap:0
>    PCMU/8000..a=ptime:20..a=recvonly..
>
> U 2007/03/18 12:54:16.443328 172.17.2.14:5060 -> 172.17.4.22:5060
>   ACK sip:203 at 172.17.2.11:5060 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z
>   9hG4bK26b04409b72e06f9..Route:
> <sip:172.17.4.22;lr=on;ftag=61645575ae245b55
>   >..From: <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172
>   .17.4.22>;tag=hssUA_3795992784-846..Contact:
> <sip:3525 at 172.17.2.14;user=pho
>   ne>..Call-ID: 3795992784-846..CSeq: 321 ACK..User-Agent: Grandstream
> BT110
>   1.0.8.16..Max-Forwards: 70..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIO
>   NS,INFO,SUBSCRIBE..Content-Length: 0....
>
> U 2007/03/18 12:54:16.445463 172.17.4.22:5060 -> 172.17.2.11:5060
>   ACK sip:203 at 172.17.2.11:5060 SIP/2.0..Record-Route:
> <sip:172.17.4.22;lr=on;
>   ftag=61645575ae245b55>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK4751.82b
>   c6f96.2..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bK26b04409b72e06f9..From:
>    <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.22
>   >;tag=hssUA_3795992784-846..Contact:
> <sip:3525 at 172.17.2.14;user=phone>..Cal
>   l-ID: 3795992784-846..CSeq: 321 ACK..User-Agent: Grandstream BT110
> 1.0.8.16
>   ..Max-Forwards: 69..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,
>   SUBSCRIBE..Content-Length: 0....
>
> U 2007/03/18 12:54:20.272078 172.17.2.14:5060 -> 172.17.4.22:5060
>   REFER sip:203 at 172.17.2.11:5060 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.14;branch
>   =z9hG4bK9e02f3ad995f8245..Route:
> <sip:172.17.4.22;lr=on;ftag=61645575ae245b
>   55>..From: <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 1
>   72.17.4.22>;tag=hssUA_3795992784-846..Contact:
> <sip:3525 at 172.17.2.14;user=p
>   hone>..Supported: replaces..Refer-To:
> <sip:5524 at 172.17.4.22;user=phone>..Re
>   ferred-By: <sip:3525 at 172.17.4.22;user=phone>..Call-ID:
> 3795992784-846..CSeq
>   : 322 REFER..User-Agent: Grandstream BT110 1.0.8.16..Max-Forwards:
> 70..Allo
>   w:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Lengt
>   h: 0....
>
> U 2007/03/18 12:54:20.275997 172.17.4.22:5060 -> 172.17.2.11:5060
>   REFER sip:203 at 172.17.2.11:5060 SIP/2.0..Record-Route:
> <sip:172.17.4.22;lr=o
>   n;ftag=61645575ae245b55>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK1751.e
>   223fee7.0..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bK9e02f3ad995f8245..Fro
>   m: <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.
>   22>;tag=hssUA_3795992784-846..Contact:
> <sip:3525 at 172.17.2.14;user=phone>..S
>   upported: replaces..Refer-To:
> <sip:5524 at 172.17.4.22;user=phone>..Referred-B
>   y: <sip:3525 at 172.17.4.22;user=phone>..Call-ID: 3795992784-846..CSeq:
> 322 RE
>   FER..User-Agent: Grandstream BT110 1.0.8.16..Max-Forwards: 69..Allow:
> INVIT
>   E,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Length:
> 0....
>
> U 2007/03/18 12:54:20.323290 172.17.2.11:5060 -> 172.17.4.22:5060
>   INVITE sip:5524 at 172.17.4.22;user=phone SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.1
>   1:5060;branch=z9hG4bK3806597784-846..Max-Forwards: 70..Allow:
> INVITE,OPTION
>   S,CANCEL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Supported: replaces..From:
> <sip:2
>   03 at 172.17.4.22>;tag=hssUA_3806597784-846..To:
> <sip:5524 at 172.17.4.22;user=ph
>   one>..Call-ID: 3806597784-846..CSeq: 1 INVITE..Contact:
> <sip:203 at 172.17.2.1
>   1:5060>..Referred-By: <sip:3525 at 172.17.4.22;user=phone>..Content-Type:
> appl
>   ication/sdp..Content-Length: 237....v=0..o=Claro 0 1 IN IP4
> 172.17.2.11..s=
>   Claro..c=IN IP4 172.17.2.11..t=0 0..m=audio 30006 RTP/AVP 0 101
> 120..a=rtpm
>   ap:0 PCMU/8000..a=rtpmap:101 TELEPHONE-EVENT/8000..a=fmtp:101
> 0-16..a=rtpma
>   p:120 BSRTCP/8000..a=fmtp:120 ver2..a=sendrecv..
>
> U 2007/03/18 12:54:20.324935 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 407 Proxy Authentication Required..Via: SIP/2.0/UDP
> 172.17.2.11:506
>   0;branch=z9hG4bK3806597784-846..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_38065
>   97784-846..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=329cfeaa6ded039da25ff8
>   cbb8668bd2.dc60..Call-ID: 3806597784-846..CSeq: 1
> INVITE..Proxy-Authenticat
>   e: Digest realm="172.17.4.22",
> nonce="45fd6fe80721e4ce9c9b2eef4c93a66ef88b9
>   f2c"..Server: ClaroSIS (Openser 1.1.1 (i386/linux))..Content-Length:
> 0..War
>   ning: 392 172.17.4.22:5060 "Noisy feedback tells:  pid=4001
> req_src_ip=172.
>   17.2.11 req_src_port=5060 in_uri=sip:5524 at 172.17.4.22;user=phone
> out_uri=si
>   p:5524 at 172.17.4.22;user=phone via_cnt==1"....
>
> U 2007/03/18 12:54:20.328647 172.17.2.11:5060 -> 172.17.4.22:5060
>   SIP/2.0 202 Accepted..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK1751.e223f
>   ee7.0,SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bK9e02f3ad995f8245..Record-Route:
>    <sip:172.17.4.22;lr=on;ftag=61645575ae245b55>..From:
> <sip:3525 at 172.17.4.22
>   :5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.22>;tag=hssUA_3795992784
>   -846..Call-ID: 3795992784-846..CSeq: 322 REFER..Contact:
> <sip:203 at 172.17.2.
>   11:5060>..Content-Length: 0....
>
> U 2007/03/18 12:54:20.330099 172.17.4.22:5060 -> 172.17.2.14:5060
>   SIP/2.0 202 Accepted..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bK9e02f3ad99
>   5f8245..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=61645575ae245b55>..From:
>   <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.22>
>   ;tag=hssUA_3795992784-846..Call-ID: 3795992784-846..CSeq: 322
> REFER..Contac
>   t: <sip:203 at 172.17.2.11:5060>..Content-Length: 0....
>
> U 2007/03/18 12:54:20.351529 172.17.2.11:5060 -> 172.17.4.22:5060
>   ACK sip:5524 at 172.17.4.22;user=phone SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.11:5
>   060;branch=z9hG4bK3806597784-846..Max-Forwards: 70..User-Agent: Claro
> BS320
>   2 A454..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..To:
> <sip:5524
>  
> @172.17.4.22;user=phone>;tag=329cfeaa6ded039da25ff8cbb8668bd2.dc60..Call
> -ID
>   : 3806597784-846..CSeq: 1 ACK..Contact:
> <sip:203 at 172.17.2.11:5060>..Content
>   -Length: 0....
>
> U 2007/03/18 12:54:20.364969 172.17.2.11:5060 -> 172.17.4.22:5060
>   INVITE sip:5524 at 172.17.4.22;user=phone SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.1
>   1:5060;branch=z9hG4bK3806642784-846..Max-Forwards: 70..Allow:
> INVITE,OPTION
>   S,CANCEL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Supported:
> replaces..User-Agent:
>   Claro BS3202 A454..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..To
>   : <sip:5524 at 172.17.4.22;user=phone>..Call-ID: 3806597784-846..CSeq: 2
> INVIT
>   E..Contact: <sip:203 at 172.17.2.11:5060>..Content-Type:
> application/sdp..Prox
>   y-Authorization: Digest
> username="613",realm="172.17.4.22",nonce="45fd6fe80
>  
> 721e4ce9c9b2eef4c93a66ef88b9f2c",uri="sip:5524 at 172.17.4.22",response="3f
> b20
>   f7d6e67668e07b862b99412162d",algorithm=md5..Content-Length:
> 237....v=0..o=C
>   laro 0 1 IN IP4 172.17.2.11..s=Claro..c=IN IP4 172.17.2.11..t=0
> 0..m=audio
>   30006 RTP/AVP 0 101 120..a=rtpmap:0 PCMU/8000..a=rtpmap:101
> TELEPHONE-EVENT
>   /8000..a=fmtp:101 0-16..a=rtpmap:120 BSRTCP/8000..a=fmtp:120
> ver2..a=sendre
>   cv..
>
> U 2007/03/18 12:54:20.372610 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 100 trying -- your call is important to us..Via: SIP/2.0/UDP
> 172.17
>   .2.11:5060;branch=z9hG4bK3806642784-846..From:
> <sip:203 at 172.17.4.22>;tag=hs
>   sUA_3806597784-846..To: <sip:5524 at 172.17.4.22;user=phone>..Call-ID:
> 3806597
>   784-846..CSeq: 2 INVITE..Server: ClaroSIS (Openser 1.1.1
> (i386/linux))..Con
>   tent-Length: 0..Warning: 392 172.17.4.22:5060 "Noisy feedback tells:
> pid=4
>   003 req_src_ip=172.17.2.11 req_src_port=5060
> in_uri=sip:5524 at 172.17.4.22;us
>   er=phone out_uri=sip:5524 at 172.17.2.168:5061 via_cnt==1"....
>
> U 2007/03/18 12:54:20.372833 172.17.4.22:5060 -> 172.17.2.168:5061
>   INVITE sip:5524 at 172.17.2.168:5061 SIP/2.0..Record-Route:
> <sip:172.17.4.22;l
>   r=on;ftag=hssUA_3806597784-846;did=0e3.7c5bd92>..Via: SIP/2.0/UDP
> 172.17.4.
>   22;branch=z9hG4bK95c6.337d9f56.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=
>   z9hG4bK3806642784-846..Max-Forwards: 69..Allow:
> INVITE,OPTIONS,CANCEL,ACK,B
>   YE,PRACK,INFO,REFER,NOTIFY..Supported: replaces..User-Agent: Claro
> BS3202 A
>   454..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..To:
> <sip:5524 at 17
>   2.17.4.22;user=phone>..Call-ID: 3806597784-846..CSeq: 2
> INVITE..Contact: <s
>   ip:203 at 172.17.2.11:5060>..Content-Type:
> application/sdp..Content-Length: 23
>   7....v=0..o=Claro 0 1 IN IP4 172.17.2.11..s=Claro..c=IN IP4
> 172.17.2.11..t=
>   0 0..m=audio 30006 RTP/AVP 0 101 120..a=rtpmap:0
> PCMU/8000..a=rtpmap:101 TE
>   LEPHONE-EVENT/8000..a=fmtp:101 0-16..a=rtpmap:120
> BSRTCP/8000..a=fmtp:120 v
>   er2..a=sendrecv..
>
> U 2007/03/18 12:54:20.385872 172.17.2.168:5061 -> 172.17.4.22:5060
>   SIP/2.0 100 Trying..To: <sip:5524 at 172.17.4.22;user=phone>..From:
> <sip:203 at 1
>   72.17.4.22>;tag=hssUA_3806597784-846..Call-ID: 3806597784-846..CSeq: 2
> INVI
>   TE..Via: SIP/2.0/UDP 172.17.4.22;branch=z9hG4bK95c6.337d9f56.0..Via:
> SIP/2.
>   0/UDP 172.17.2.11:5060;branch=z9hG4bK3806642784-846..Record-Route:
> <sip:172
>   .17.4.22;lr=on;ftag=hssUA_3806597784-846;did=0e3.7c5bd92>..Server:
> Linksys/
>   PAP2-3.1.3(LS)..Content-Length: 0....
>
> U 2007/03/18 12:54:20.393629 172.17.2.11:5060 -> 172.17.4.22:5060
>   NOTIFY sip:3525 at 172.17.2.14;user=phone SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.1
>   1:5060;branch=z9hG4bK3806672784-846..Route:
> <sip:172.17.4.22;lr=on;ftag=hss
>   UA_3795992784-846;did=55f.4491d5b2>..Max-Forwards:
> 70..Proxy-Authorization:
>    Digest
> username="613",realm="172.17.4.22",nonce="45fd6fdd9e385352f9c63342c
>  
> c574c454939f3ca",uri="sip:3525 at 172.17.4.22:5060",response="7156ea61b864a
> 4ab
>   937d17f42c7cd45a",algorithm=md5..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK
>   ,INFO,REFER,NOTIFY..Supported: replaces..From:
> <sip:203 at 172.17.4.22>;tag=hs
>   sUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..C
>   all-ID: 3795992784-846..CSeq: 3 NOTIFY..Contact:
> <sip:203 at 172.17.2.11:5060>
>   ..Event: refer..Subscription-State: active;expires=60..Content-Type:
> messag
>   e/sipfrag..Content-Length: 530....SIP/2.0 100 trying -- your call is
> import
>   ant to us..Via: SIP/2.0/UDP
> 172.17.2.11:5060;received=172.17.4.22;branch=z9
>   hG4bK3806642784-846..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..
>   To: <sip:5524 at 172.17.4.22;user=phone>..Call-ID: 3806597784-846..CSeq:
> 2 INV
>   ITE..Server: ClaroSIS (Openser 1.1.1 (i386/linux))..Content-Length:
> 0..Warn
>   ing: 392 172.17.4.22:5060 "Noisy feedback tells:  pid=4003
> req_src_ip=172.1
>   7.2.11 req_src_port=5060 in_uri=sip:5524 at 172.17.4.22;user=phone
> out_uri=sip
>   :5524 at 172.17.2.168:5061 via_cnt==1"....
>
> U 2007/03/18 12:54:20.396980 172.17.4.22:5060 -> 172.17.2.14:5060
>   NOTIFY sip:3525 at 172.17.2.14;user=phone SIP/2.0..Record-Route:
> <sip:172.17.4
>   .22;lr=on;ftag=hssUA_3795992784-846>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z
>   9hG4bKcd8b.81aaa3f3.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806
>   672784-846..Max-Forwards: 69..Proxy-Authorization: Digest
> username="613",re
>  
> alm="172.17.4.22",nonce="45fd6fdd9e385352f9c63342cc574c454939f3ca",uri="
> sip
>  
> :3525 at 172.17.4.22:5060",response="7156ea61b864a4ab937d17f42c7cd45a",algo
> rit
>   hm=md5..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Suppo
>   rted: replaces..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To: <
>   sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..Call-ID:
> 3795992784-846..C
>   Seq: 3 NOTIFY..Contact: <sip:203 at 172.17.2.11:5060>..Event:
> refer..Subscript
>   ion-State: active;expires=60..Content-Type:
> message/sipfrag..Content-Length
>   : 530....SIP/2.0 100 trying -- your call is important to us..Via:
> SIP/2.0/U
>   DP
> 172.17.2.11:5060;received=172.17.4.22;branch=z9hG4bK3806642784-846..From
>   : <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..To:
> <sip:5524 at 172.17.4.22
>   ;user=phone>..Call-ID: 3806597784-846..CSeq: 2 INVITE..Server:
> ClaroSIS (Op
>   enser 1.1.1 (i386/linux))..Content-Length: 0..Warning: 392
> 172.17.4.22:5060
>    "Noisy feedback tells:  pid=4003 req_src_ip=172.17.2.11
> req_src_port=5060
>   in_uri=sip:5524 at 172.17.4.22;user=phone
> out_uri=sip:5524 at 172.17.2.168:5061 v
>   ia_cnt==1"....
>
> U 2007/03/18 12:54:20.401630 172.17.2.168:5061 -> 172.17.4.22:5060
>   SIP/2.0 180 Ringing..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff
>   0a22i1..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call-ID:
> 3806
>   597784-846..CSeq: 2 INVITE..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK95c6
>   .337d9f56.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806642784-846
>   ..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846;did=0e3.7c
>   5bd92>..Server: Linksys/PAP2-3.1.3(LS)..Content-Length: 0....
>
> U 2007/03/18 12:54:20.403183 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 180 Ringing..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff
>   0a22i1..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call-ID:
> 3806
>   597784-846..CSeq: 2 INVITE..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4b
>   K3806642784-846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784
>   -846;did=0e3.7c5bd92>..Server: Linksys/PAP2-3.1.3(LS)..Content-Length:
> 0...
>   .
>
> U 2007/03/18 12:54:20.403878 172.17.2.14:5060 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKcd8b.81aaa3f3.0.
>   .Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806672784-846..Record-Rou
>   te: <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..From:
> <sip:203 at 172.1
>   7.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645
>   575ae245b55..Call-ID: 3795992784-846..CSeq: 3 NOTIFY..User-Agent:
> Grandstre
>   am BT110 1.0.8.16..Contact: <sip:3525 at 172.17.2.14;user=phone>..Allow:
> INVIT
>   E,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Supported:
> replaces..
>   Content-Length: 0....
>
> U 2007/03/18 12:54:20.407617 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806672784-
>   846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..From:
>    <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:
>   5060>;tag=61645575ae245b55..Call-ID: 3795992784-846..CSeq: 3
> NOTIFY..User-A
>   gent: Grandstream BT110 1.0.8.16..Contact:
> <sip:3525 at 172.17.2.14:5060;user=
>   phone>..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..S
>   upported: replaces..Content-Length: 0....
>
> U 2007/03/18 12:54:20.429109 172.17.2.11:5060 -> 172.17.4.22:5060
>   NOTIFY sip:3525 at 172.17.2.14;user=phone SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.1
>   1:5060;branch=z9hG4bK3806702784-846..Route:
> <sip:172.17.4.22;lr=on;ftag=hss
>   UA_3795992784-846;did=55f.4491d5b2>..Max-Forwards:
> 70..Proxy-Authorization:
>    Digest
> username="613",realm="172.17.4.22",nonce="45fd6fdd9e385352f9c63342c
>  
> c574c454939f3ca",uri="sip:3525 at 172.17.4.22:5060",response="7156ea61b864a
> 4ab
>   937d17f42c7cd45a",algorithm=md5..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK
>   ,INFO,REFER,NOTIFY..Supported: replaces..From:
> <sip:203 at 172.17.4.22>;tag=hs
>   sUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..C
>   all-ID: 3795992784-846..CSeq: 4 NOTIFY..Contact:
> <sip:203 at 172.17.2.11:5060>
>   ..Event: refer..Subscription-State: active;expires=60..Content-Type:
> messag
>   e/sipfrag..Content-Length: 397....SIP/2.0 180 Ringing..To:
> <sip:5524 at 172.17
>   .4.22;user=phone>;tag=8cb5cce9fbff0a22i1..From:
> <sip:203 at 172.17.4.22>;tag=h
>   ssUA_3806597784-846..Call-ID: 3806597784-846..CSeq: 2 INVITE..Via:
> SIP/2.0/
>   UDP
> 172.17.2.11:5060;received=172.17.4.22;branch=z9hG4bK3806642784-846..Rec
>   ord-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846;did=0e3.7c5bd92
>   >..Server: Linksys/PAP2-3.1.3(LS)..Content-Length: 0....
>
> U 2007/03/18 12:54:20.431776 172.17.4.22:5060 -> 172.17.2.14:5060
>   NOTIFY sip:3525 at 172.17.2.14;user=phone SIP/2.0..Record-Route:
> <sip:172.17.4
>   .22;lr=on;ftag=hssUA_3795992784-846>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z
>   9hG4bK9d8b.47c7ce13.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806
>   702784-846..Max-Forwards: 69..Proxy-Authorization: Digest
> username="613",re
>  
> alm="172.17.4.22",nonce="45fd6fdd9e385352f9c63342cc574c454939f3ca",uri="
> sip
>  
> :3525 at 172.17.4.22:5060",response="7156ea61b864a4ab937d17f42c7cd45a",algo
> rit
>   hm=md5..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Suppo
>   rted: replaces..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To: <
>   sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..Call-ID:
> 3795992784-846..C
>   Seq: 4 NOTIFY..Contact: <sip:203 at 172.17.2.11:5060>..Event:
> refer..Subscript
>   ion-State: active;expires=60..Content-Type:
> message/sipfrag..Content-Length
>   : 397....SIP/2.0 180 Ringing..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb
>   5cce9fbff0a22i1..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call
>   -ID: 3806597784-846..CSeq: 2 INVITE..Via: SIP/2.0/UDP
> 172.17.2.11:5060;rece
>   ived=172.17.4.22;branch=z9hG4bK3806642784-846..Record-Route:
> <sip:172.17.4.
>   22;lr=on;ftag=hssUA_3806597784-846;did=0e3.7c5bd92>..Server:
> Linksys/PAP2-3
>   .1.3(LS)..Content-Length: 0....
>
> U 2007/03/18 12:54:20.438291 172.17.2.14:5060 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK9d8b.47c7ce13.0.
>   .Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806702784-846..Record-Rou
>   te: <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..From:
> <sip:203 at 172.1
>   7.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645
>   575ae245b55..Call-ID: 3795992784-846..CSeq: 4 NOTIFY..User-Agent:
> Grandstre
>   am BT110 1.0.8.16..Contact: <sip:3525 at 172.17.2.14;user=phone>..Allow:
> INVIT
>   E,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Supported:
> replaces..
>   Content-Length: 0....
>
> U 2007/03/18 12:54:20.439954 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806702784-
>   846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..From:
>    <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:
>   5060>;tag=61645575ae245b55..Call-ID: 3795992784-846..CSeq: 4
> NOTIFY..User-A
>   gent: Grandstream BT110 1.0.8.16..Contact:
> <sip:3525 at 172.17.2.14:5060;user=
>   phone>..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..S
>   upported: replaces..Content-Length: 0....
>
> U 2007/03/18 12:54:23.312128 172.17.2.168:5061 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i
>   1..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call-ID:
> 380659778
>   4-846..CSeq: 2 INVITE..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK95c6.337d
>   9f56.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806642784-846..Rec
>   ord-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846;did=0e3.7c5bd92
>   >..Contact: 5524 <sip:5524 at 172.17.2.168:5061>..Server:
> Linksys/PAP2-3.1.3(L
>   S)..Content-Length: 210..Allow: ACK, BYE, CANCEL, INFO, INVITE,
> NOTIFY, OPT
>   IONS, REFER..Supported: x-sipura..Content-Type:
> application/sdp....v=0..o=-
>    23586680 23586680 IN IP4 172.17.2.168..s=-..c=IN IP4
> 172.17.2.168..t=0 0..
>   m=audio 16388 RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101
> telephone-e
>   vent/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 2007/03/18 12:54:23.313878 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 200 OK..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i
>   1..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call-ID:
> 380659778
>   4-846..CSeq: 2 INVITE..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3806
>   642784-846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846;
>   did=0e3.7c5bd92>..Contact: 5524 <sip:5524 at 172.17.2.168:5061>..Server:
> Links
>   ys/PAP2-3.1.3(LS)..Content-Length: 210..Allow: ACK, BYE, CANCEL, INFO,
> INVI
>   TE, NOTIFY, OPTIONS, REFER..Supported: x-sipura..Content-Type:
> application/
>   sdp....v=0..o=- 23586680 23586680 IN IP4 172.17.2.168..s=-..c=IN IP4
> 172.17
>   .2.168..t=0 0..m=audio 16388 RTP/AVP 0 101..a=rtpmap:0
> PCMU/8000..a=rtpmap:
>   101 telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..
>
> U 2007/03/18 12:54:23.355581 172.17.2.11:5060 -> 172.17.4.22:5060
> 27646 at 0:1480
>   ........NOTIFY sip:3525 at 172.17.2.14;user=phone SIP/2.0..Via:
> SIP/2.0/UDP 17
>   2.17.2.11:5060;branch=z9hG4bK3809632784-846..Route:
> <sip:172.17.4.22;lr=on;
>   ftag=hssUA_3795992784-846;did=55f.4491d5b2>..Max-Forwards:
> 70..Proxy-Author
>   ization: Digest
> username="613",realm="172.17.4.22",nonce="45fd6fdd9e385352f
>  
> 9c63342cc574c454939f3ca",uri="sip:3525 at 172.17.4.22:5060",response="7156e
> a61
>   b864a4ab937d17f42c7cd45a",algorithm=md5..Allow:
> INVITE,OPTIONS,CANCEL,ACK,B
>   YE,PRACK,INFO,REFER,NOTIFY..Supported: replaces..From:
> <sip:203 at 172.17.4.22
>   >;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae2
>   45b55..Call-ID: 3795992784-846..CSeq: 5 NOTIFY..Contact:
> <sip:203 at 172.17.2.
>   11:5060>..Event: refer..Subscription-State:
> terminated;reason=noresource..C
>   ontent-Type: message/sipfrag..Content-Length: 756....SIP/2.0 200
> OK..To: <s
>   ip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i1..From:
> <sip:203 at 172.
>   17.4.22>;tag=hssUA_3806597784-846..Call-ID: 3806597784-846..CSeq: 2
> INVITE.
>   .Via: SIP/2.0/UDP
> 172.17.2.11:5060;received=172.17.4.22;branch=z9hG4bK38066
>   42784-846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846;d
>   id=0e3.7c5bd92>..Contact: 5524 <sip:5524 at 172.17.2.168:5061>..Server:
> Linksy
>   s/PAP2-3.1.3(LS)..Content-Length: 210..Allow:
> ACK,BYE,CANCEL,INFO,INVITE,NO
>   TIFY,OPTIONS,REFER..Supported: x-sipura..Content-Type:
> application/sdp....v
>   =0..o=- 23586680 23586680 IN IP4 172.17.2.168..s=-..c=IN IP4
> 172.17.2.168..
>   t=0 0..m=audio 16388 RTP/AVP 0 101..a=rtpmap:0 PCMU/800
>
> U 2007/03/18 12:54:23.361462 172.17.4.22:5060 -> 172.17.2.14:5060
> 50085 at 0:1480
>   .....I..NOTIFY sip:3525 at 172.17.2.14;user=phone SIP/2.0..Record-Route:
> <sip:
>   172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..Via: SIP/2.0/UDP
> 172.17.4.22;
>   branch=z9hG4bKad8b.016fb321.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9h
>   G4bK3809632784-846..Max-Forwards: 69..Proxy-Authorization: Digest
> username=
>  
> "613",realm="172.17.4.22",nonce="45fd6fdd9e385352f9c63342cc574c454939f3c
> a",
>  
> uri="sip:3525 at 172.17.4.22:5060",response="7156ea61b864a4ab937d17f42c7cd4
> 5a"
>   ,algorithm=md5..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK,INFO,REFER,NOTIF
>   Y..Supported: replaces..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-84
>   6..To: <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..Call-ID:
> 379599278
>   4-846..CSeq: 5 NOTIFY..Contact: <sip:203 at 172.17.2.11:5060>..Event:
> refer..S
>   ubscription-State: terminated;reason=noresource..Content-Type:
> message/sipf
>   rag..Content-Length: 756....SIP/2.0 200 OK..To:
> <sip:5524 at 172.17.4.22;user=
>   phone>;tag=8cb5cce9fbff0a22i1..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_380659
>   7784-846..Call-ID: 3806597784-846..CSeq: 2 INVITE..Via: SIP/2.0/UDP
> 172.17.
>  
> 2.11:5060;received=172.17.4.22;branch=z9hG4bK3806642784-846..Record-Rout
> e:
>  
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846;did=0e3.7c5bd92>..Conta
> ct:
>    5524 <sip:5524 at 172.17.2.168:5061>..Server:
> Linksys/PAP2-3.1.3(LS)..Content
>   -Length: 210..Allow:
> ACK,BYE,CANCEL,INFO,INVITE,NOTIFY,OPTIONS,REFER..Suppo
>   rted: x-sipura..Content-Type: application/sdp....v=0..o=- 23586680
> 23586680
>    IN IP4 172.17.2.168..s=-..c=IN IP4 172.17.2.168..t=0 0
>
> U 2007/03/18 12:54:23.371944 172.17.2.11:5060 -> 172.17.4.22:5060
>   ACK sip:5524 at 172.17.2.168:5061 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;b
>   ranch=z9hG4bK3809647784-846..Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_38065
>   97784-846;did=0e3.7c5bd92>..Max-Forwards: 70..Proxy-Authorization:
> Digest u
>  
> sername="613",realm="172.17.4.22",nonce="45fd6fe80721e4ce9c9b2eef4c93a66
> ef8
>  
> 8b9f2c",uri="sip:5524 at 172.17.4.22",response="3fb20f7d6e67668e07b862b9941
> 216
>   2d",algorithm=md5..User-Agent: Claro BS3202 A454..From:
> <sip:203 at 172.17.4.2
>   2>;tag=hssUA_3806597784-846..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5
>   cce9fbff0a22i1..Call-ID: 3806597784-846..CSeq: 2 ACK..Contact:
> <sip:203 at 172
>   .17.2.11:5060>..Content-Length: 0....
>
> U 2007/03/18 12:54:23.372334 172.17.2.14:5060 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKad8b.016fb321.0.
>   .Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3809632784-846..Record-Rou
>   te: <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..From:
> <sip:203 at 172.1
>   7.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:5060>;tag=61645
>   575ae245b55..Call-ID: 3795992784-846..CSeq: 5 NOTIFY..User-Agent:
> Grandstre
>   am BT110 1.0.8.16..Contact: <sip:3525 at 172.17.2.14;user=phone>..Allow:
> INVIT
>   E,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Supported:
> replaces..
>   Content-Length: 0....
>
> U 2007/03/18 12:54:23.373917 172.17.4.22:5060 -> 172.17.2.168:5061
>   ACK sip:5524 at 172.17.2.168:5061 SIP/2.0..Record-Route:
> <sip:172.17.4.22;lr=o
>   n;ftag=hssUA_3806597784-846>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK95
>   c6.337d9f56.2..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3809647784-8
>   46..Max-Forwards: 69..Proxy-Authorization: Digest
> username="613",realm="172
>  
> .17.4.22",nonce="45fd6fe80721e4ce9c9b2eef4c93a66ef88b9f2c",uri="sip:5524
> @17
>  
> 2.17.4.22",response="3fb20f7d6e67668e07b862b99412162d",algorithm=md5..Us
> er-
>   Agent: Claro BS3202 A454..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-
>   846..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i1..Call-ID:
>    3806597784-846..CSeq: 2 ACK..Contact:
> <sip:203 at 172.17.2.11:5060>..Content-
>   Length: 0....
>
> U 2007/03/18 12:54:23.375179 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3809632784-
>   846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3795992784-846>..From:
>    <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..To:
> <sip:3525 at 172.17.4.22:
>   5060>;tag=61645575ae245b55..Call-ID: 3795992784-846..CSeq: 5
> NOTIFY..User-A
>   gent: Grandstream BT110 1.0.8.16..Contact:
> <sip:3525 at 172.17.2.14:5060;user=
>   phone>..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..S
>   upported: replaces..Content-Length: 0....
>
> 4. ******   The message BYE doesn't have the did parameter.
> U 2007/03/18 12:54:23.490685 172.17.2.14:5060 -> 172.17.4.22:5060
>   BYE sip:203 at 172.17.2.11:5060 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z
>   9hG4bKa419f2aaf11a7b40..Route:
> <sip:172.17.4.22;lr=on;ftag=61645575ae245b55
>   >..From: <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172
>   .17.4.22>;tag=hssUA_3795992784-846..Supported: replaces..Call-ID:
> 379599278
>   4-846..CSeq: 323 BYE..User-Agent: Grandstream BT110
> 1.0.8.16..Max-Forwards:
>    70..Allow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Cont
>   ent-Length: 0....
>
> U 2007/03/18 12:54:23.494656 172.17.4.22:5060 -> 172.17.2.11:5060
>   BYE sip:203 at 172.17.2.11:5060 SIP/2.0..Record-Route:
> <sip:172.17.4.22;lr=on;
>   ftag=61645575ae245b55>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK2751.609
>   47d11.0..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bKa419f2aaf11a7b40..From:
>    <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.22
>   >;tag=hssUA_3795992784-846..Supported: replaces..Call-ID:
> 3795992784-846..C
>   Seq: 323 BYE..User-Agent: Grandstream BT110 1.0.8.16..Max-Forwards:
> 69..All
>   ow:
> INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE..Content-Leng
>   th: 0....
>
> U 2007/03/18 12:54:23.517688 172.17.2.11:5060 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bK2751.60947d11.0,
>   SIP/2.0/UDP 172.17.2.14;branch=z9hG4bKa419f2aaf11a7b40..Record-Route:
> <sip:
>   172.17.4.22;lr=on;ftag=61645575ae245b55>..Server: Claro BS3202
> A454..From:
>   <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
> <sip:203 at 172.17.4.22>
>   ;tag=hssUA_3795992784-846..Call-ID: 3795992784-846..CSeq: 323
> BYE..Contact:
>    <sip:203 at 172.17.2.11:5060>..Allow:
> INVITE,OPTIONS,CANCEL,ACK,BYE,PRACK,INF
>   O,REFER,NOTIFY..Content-Length: 0....
>
> U 2007/03/18 12:54:23.519138 172.17.4.22:5060 -> 172.17.2.14:5060
>   SIP/2.0 200 OK..Via: SIP/2.0/UDP
> 172.17.2.14;branch=z9hG4bKa419f2aaf11a7b40
>   ..Record-Route: <sip:172.17.4.22;lr=on;ftag=61645575ae245b55>..Server:
> Clar
>   o BS3202 A454..From:
> <sip:3525 at 172.17.4.22:5060>;tag=61645575ae245b55..To:
>   <sip:203 at 172.17.4.22>;tag=hssUA_3795992784-846..Call-ID:
> 3795992784-846..CS
>   eq: 323 BYE..Contact: <sip:203 at 172.17.2.11:5060>..Allow:
> INVITE,OPTIONS,CAN
>   CEL,ACK,BYE,PRACK,INFO,REFER,NOTIFY..Content-Length: 0....
>
> U 2007/03/18 12:54:29.780666 172.17.2.11:5060 -> 172.17.4.22:5060
>   BYE sip:5524 at 172.17.2.168:5061 SIP/2.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;b
>   ranch=z9hG4bK3816062784-846..Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_38065
>   97784-846;did=0e3.7c5bd92>..Max-Forwards: 70..Proxy-Authorization:
> Digest u
>  
> sername="613",realm="172.17.4.22",nonce="45fd6fe80721e4ce9c9b2eef4c93a66
> ef8
>  
> 8b9f2c",uri="sip:5524 at 172.17.4.22",response="3fb20f7d6e67668e07b862b9941
> 216
>   2d",algorithm=md5..User-Agent: Claro BS3202 A454..From:
> <sip:203 at 172.17.4.2
>   2>;tag=hssUA_3806597784-846..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5
>   cce9fbff0a22i1..Call-ID: 3806597784-846..CSeq: 3 BYE..Content-Length:
> 0....
>
> U 2007/03/18 12:54:29.784698 172.17.4.22:5060 -> 172.17.2.168:5061
>   BYE sip:5524 at 172.17.2.168:5061 SIP/2.0..Record-Route:
> <sip:172.17.4.22;lr=o
>   n;ftag=hssUA_3806597784-846>..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKa5
>   c6.704043c7.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3816062784-8
>   46..Max-Forwards: 69..Proxy-Authorization: Digest
> username="613",realm="172
>  
> .17.4.22",nonce="45fd6fe80721e4ce9c9b2eef4c93a66ef88b9f2c",uri="sip:5524
> @17
>  
> 2.17.4.22",response="3fb20f7d6e67668e07b862b99412162d",algorithm=md5..Us
> er-
>   Agent: Claro BS3202 A454..From:
> <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-
>   846..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i1..Call-ID:
>    3806597784-846..CSeq: 3 BYE..Content-Length: 0....
>
> U 2007/03/18 12:54:29.804689 172.17.2.168:5061 -> 172.17.4.22:5060
>   SIP/2.0 200 OK..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i
>   1..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call-ID:
> 380659778
>   4-846..CSeq: 3 BYE..Via: SIP/2.0/UDP
> 172.17.4.22;branch=z9hG4bKa5c6.704043c
>   7.0..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3816062784-846..Record
>   -Route: <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846>..Server:
> Linksys/
>   PAP2-3.1.3(LS)..P-RTP-Stat:
> PS=146,OS=34640,PR=303,OR=48162,PL=1,JI=0,LA=10
>   ,DU=6,EN=G711u,DE=G711u..Content-Length: 0....
>
> U 2007/03/18 12:54:29.806174 172.17.4.22:5060 -> 172.17.2.11:5060
>   SIP/2.0 200 OK..To:
> <sip:5524 at 172.17.4.22;user=phone>;tag=8cb5cce9fbff0a22i
>   1..From: <sip:203 at 172.17.4.22>;tag=hssUA_3806597784-846..Call-ID:
> 380659778
>   4-846..CSeq: 3 BYE..Via: SIP/2.0/UDP
> 172.17.2.11:5060;branch=z9hG4bK3816062
>   784-846..Record-Route:
> <sip:172.17.4.22;lr=on;ftag=hssUA_3806597784-846>..S
>   erver: Linksys/PAP2-3.1.3(LS)..P-RTP-Stat:
> PS=146,OS=34640,PR=303,OR=48162,
>   PL=1,JI=0,LA=10,DU=6,EN=G711u,DE=G711u..Content-Length: 0....
>
> As you can see, the dialog (callid=3795992784-846) still exists...
>  /usr/local/sbin/openserctl fifo dlg_list
> 200 OK
> hash=3925, label=727521604, ptr=0x405c2d78
>         state=3, timeout=236218
>         callid='3795992784-846'
>         from uri='sip:203 at 172.17.4.22', tag='hssUA_3795992784-846'
>         to uri='sip:3525 at 172.17.4.22:5060', tag='61645575ae245b55'
>
> Thnk you in advance,
> Leonid Fainshtein
>
> -----Original Message-----
> From: Bogdan-Andrei Iancu [mailto:bogdan at voice-system.ro] 
> Sent: Friday, March 16, 2007 2:51 PM
> To: Leonid Fainshtein
> Cc: users at openser.org
> Subject: Re: [Users] Problem with dialog module
>
> Hi Leonid,
>
> what do you mean by "removes"?. When sequential requests are processed, 
> the Route header corresponding to your server will be completely
> removed.
>
> regards,
> bogdan
>
> Leonid Fainshtein wrote:
>   
>> Hi,
>> I see that when Openser 1.1 receives re-INVITE it removes parameter
>> "did=" from header field Route before sending it to the second call
>> party.
>> Any idea?
>>
>> Thank you in advance,
>> Leonid
>>
>>
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>>
>>   
>>     
>
>
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>
>
>   





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