o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| INVITE with the illegal use of escaped headers in Request-URIINVITE sip:user@company.com?Route=%3Csip:sip.example.com%3E SIP/2.0To: sip:user@company.comFrom: sip:caller@university.eduCall-ID: 5@10.0.0.1CSeq: 1 INVITEVia: SIP/2.0/UDP 135.180.130.133Content-Type: application/sdpContent-Length: 165v=0o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| INVITE containing an unknown in the Request URIINVITE name:user SIP/2.0To: sip:user@company.comFrom: sip:caller@university.eduCall-ID: 6@10.0.0.1CSeq: 1 INVITEVia: SIP/2.0/UDP 135.180.130.133Content-Type: application/sdpContent-Length: 165v=0o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| OPTIONS with no LWS between display name and <OPTIONS sip:user@company.com SIP/2.0To: sip:user@company.comFrom: "caller"<sip:caller@example.com>Call-ID: 1234abcd@10.0.0.1CSeq: 1 OPTIONSVia: SIP/2.0/UDP 135.180.130.133| OPTIONS with extran LWS between display name and <OPTIONS sip:user@company.com SIP/2.0To: sip:user@company.comFrom: "caller"    <sip:caller@example.com>Call-ID: 1234abcd@10.0.0.1CSeq: 2 OPTIONSVia: SIP/2.0/UDP 135.180.130.133| INVITE with an illegal SIP Date format.INVITE sip:user@company.com SIP/2.0To: sip:user@company.comFrom: sip:caller@university.eduCall-ID: 7@10.0.0.1CSeq: 1 INVITEVia: SIP/2.0/UDP 135.180.130.133Expires: Fri, 01 Jan 2010 16:00:00 ESTContent-Type: application/sdpContent-Length: 165v=0o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| INVITE with Passed Expries TimeINVITE sip:user@company.com SIP/2.0To: sip:user@company.comFrom: sip:caller@university.eduCall-ID: 8@10.0.0.1CSeq: 1 INVITEVia: SIP/2.0/UDP 135.180.130.133Expires: Thu, 01 Dec 1994 16:00:00 GMTContent-Type: application/sdpContent-Length: 165v=0o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| INVITE with Max-Forwards Set to ZeroINVITE sip:user@company.com SIP/2.0To: sip:user@company.comFrom: sip:caller@university.eduCall-ID: 9@10.0.0.1CSeq: 1 INVITEVia: SIP/2.0/UDP 135.180.130.133Max-Forwards: 0Content-Type: application/sdpContent-Length: 165v=0o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| REGISTER with a Escaped Header in a Legal SIP URL of a ContactREGISTER sip:company.com SIP/2.0To: sip:user@company.comFrom: sip:user@company.comContact: sip:user@host.company.comCall-ID: k345asrl3fdbv@10.0.0.1CSeq: 1 REGISTERVia: SIP/2.0/UDP 135.180.130.133Contact: <sip:user@example.com?Route=%3Csip:sip.example.com%3E>| REGISTER with a Escaped Header in a Illegal SIP URL of a ContactREGISTER sip:company.com SIP/2.0To: sip:user@company.comFrom: sip:user@company.comContact: sip:user@host.company.comCall-ID: k345asrl3fdbv@10.0.0.1CSeq: 1 REGISTERVia: SIP/2.0/UDP 135.180.130.133Contact: sip:user@example.com?Route=%3Csip:sip.example.com%3E| INVITE with Long Values in HeadersINVITE sip:user@company.com SIP/2.0To: "I have a user name of extreme proportion" <sip:user@company.com:6000;other-param=1234567890somethingelselong1234567890>From: sip:caller@university.eduCall-ID: kl24ahsd546folnyt2vbak9sad98u23naodiunzds09a3bqw0sdfbsk34poouymnae004 3nsed09mfkvc74bd0cuwnms05dknw87hjpobd76fCSeq: 1 INVITEMy-State: sldkjflzdsfaret0803adgaasd0afds0asdaasdVia: SIP/2.0/UDP sip33.example.comVia: SIP/2.0/UDP sip32.example.comVia: SIP/2.0/UDP sip31.example.comVia: SIP/2.0/UDP sip30.example.comVia: SIP/2.0/UDP sip29.example.comVia: SIP/2.0/UDP sip28.example.comVia: SIP/2.0/UDP sip27.example.comVia: SIP/2.0/UDP sip26.example.comVia: SIP/2.0/UDP sip25.example.comVia: SIP/2.0/UDP sip24.example.comVia: SIP/2.0/UDP sip23.example.comVia: SIP/2.0/UDP sip22.example.comVia: SIP/2.0/UDP sip21.example.comVia: SIP/2.0/UDP sip20.example.comVia: SIP/2.0/UDP sip19.example.comVia: SIP/2.0/UDP sip18.example.comVia: SIP/2.0/UDP sip17.example.comVia: SIP/2.0/UDP sip16.example.comVia: SIP/2.0/UDP sip15.example.comVia: SIP/2.0/UDP sip14.example.comVia: SIP/2.0/UDP sip13.example.comVia: SIP/2.0/UDP sip12.example.comVia: SIP/2.0/UDP sip11.example.comVia: SIP/2.0/UDP sip10.example.comVia: SIP/2.0/UDP sip9.example.comVia: SIP/2.0/UDP sip8.example.comVia: SIP/2.0/UDP sip7.example.comVia: SIP/2.0/UDP sip6.example.comVia: SIP/2.0/UDP sip5.example.comVia: SIP/2.0/UDP sip4.example.comVia: SIP/2.0/UDP sip3.example.comVia: SIP/2.0/UDP sip2.example.comVia: SIP/2.0/UDP sip1.example.comVia: SIP/2.0/UDP host.example.com;received=135.180.130.133;branch=C1C3344E2710000000E2 99E568E7potato10potato0potato0Content-Type: application/sdpv=0o=mhandley 29739 7272939 IN IP4 126.5.4.3s=SIP Callt=3149328700 0c=IN IP4 135.180.130.88m=audio 492170 RTP/AVP 0 12m=video 3227 RTP/AVP 31a=rtpmap:31 LPC| OPTIONS with multiple headers.OPTIONS sip:135.180.130.133 SIP/2.0Via: SIP/2.0/UDP company.com:5604From: sip:iuser@company.comTo: sip:user@135.180.130.133Call-ID: 1804928587@company.comCSeq: 1 OPTIONSExpires: 3600Contact: sip:host.company.com| INVITE with large number of SDP attributes and telephone subscriber Request-URI (the content-length is also wrong)INVITE sip:+1-972-555-2222;phone-context=name%40domain;new=user?%22Route%3a%20X%40Y%3bZ=W%22@gw1.wcom.com;user=phone SIP/2.0Via: SIP/2.0/UDP iftgw.there.com:5060From: sip:+1-303-555-1111@ift.here.com;user=phoneTo: sip:+1-650-555-2222@ss1.wcom.com;user=phoneCall-ID: 1717@ift.here.comCSeq: 56 INVITEContent-Type: application/sdpContent-Length: 320v=0o=faxgw1 2890844527 2890844527 IN IP4 iftgw.there.coms=Session SDPc=IN IP4 iftmg.there.comt=0 0m=image 49172 udptl t38a=T38FaxVersion:0a=T38maxBitRate:14400a=T38FaxFillBitRemoval:0a=T38FaxTranscodingMMR:0a=T38FaxTranscodingJBIG:0a=T38FaxRateManagement:transferredTCFa=T38FaxMaxBuffer:260a=T38FaxUdpEC:t38UDPR| REGISTER with a contact parameter.REGISTER sip:bell-tel.com SIP/2.0Via: SIP/2.0/UDP saturn.bell-tel.comFrom: sip:watson@bell-tel.comTo: sip:watson@bell-tel.comCall-ID: 70710@saturn.bell-tel.comCSeq: 2 REGISTERContact: sip:+1-972-555-2222@gw1.wcom.com;user=phone| REGISTER with a url parameter.REGISTER sip:bell-tel.com SIP/2.0Via: SIP/2.0/UDP saturn.bell-tel.comFrom: sip:watson@bell-tel.comTo: sip:watson@bell-tel.comCall-ID: 70710@saturn.bell-tel.comCSeq: 3 REGISTERContact: <sip:+1-972-555-2222@gw1.wcom.com;user=phone>| INVITE with an Unquoted Display Name Containing Multiple Tokens (????)INVITE sip:t.watson@ieee.org SIP/2.0Via:     SIP/2.0/UDP c.bell-tel.comFrom:    A. Bell <sip:a.g.bell@bell-tel.com>To:      T. Watson <sip:t.watson@ieee.org>Call-ID: 31414@c.bell-tel.comCSeq:    1 INVITE| INVITE with an Unquoted Display Name Containg Non-Token Characters (should fail...)INVITE sip:t.watson@ieee.org SIP/2.0Via:     SIP/2.0/UDP c.bell-tel.comFrom:    Bell, Alexander <sip:a.g.bell@bell-tel.com>To:      Watson, Thomas <sip:t.watson@ieee.org>Call-ID: 31415@c.bell-tel.comCSeq:    1 INVITE| INVITE with Unknown (Higher) Protocol Version in Start LineINVITE sip:t.watson@ieee.org SIP/7.0Via:     SIP/2.0/UDP c.bell-tel.comFrom:    A. Bell <sip:a.g.bell@bell-tel.com>To:      T. Watson <sip:t.watson@ieee.org>Call-ID: 31417@c.bell-tel.comCSeq:    1 INVITE| INVITE with record-routeINVITE sip:+1-650-555-2222@iftgw.there.com;user=phone SIP/2.0Via: SIP/2.0/UDP ss1.wcom.com:5060; branch=2d007.1Via: SIP/2.0/UDP ift.here.com:5060Record-Route: <sip:+1-650-555-2222@iftgw.there.com; maddr=ss1.wcom.com>From: <sip:+1-303-555-1111@ift.here.com;user=phone>To: <sip:+1-650-555-2222@ss1.wcom.com;user=phone>Call-ID: 1717@ift.here.comCSeq: 17 INVITEContact: <sip:+1-303-555-1111@ift.here.com;user=phone>Content-Type: application/sdpContent-Length: 151v=0o=IFAXTERMINAL01 2890844527 2890844527 IN IP4 ift.here.coms=Session SDPc=IN IP4 iftmg.here.comt=0 0m=audio 3456 RTP/AVP 0a=rtpmap:0 PCMU/8000|SIP/2.0 407 Proxy Authorization RequiredVia: SIP/2.0/UDP here.com:5060From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>Call-ID: 12345600@here.comCSeq: 1 INVITEProxy-Authenticate: Digest realm="MCI WorldCom SIP", domain="sip:ss1.wcom.com", nonce="f84f1cec41e6cbe5aea9c8e88d359", opaque="", stale=FALSE, algorithm=MD5Content-Length: 0|INVITE sip:UserB@there.com SIP/2.0Via: SIP/2.0/UDP here.com:5060From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>Call-ID: 12345601@here.comCSeq: 1 INVITEContact: <sip:UserA@100.101.102.103>Authorization:Digest username="UserA", realm="MCI WorldCom SIP", nonce="wf84f1ceczx41ae6cbe5aea9c8e88d359", opaque="", uri="sip:ss1.wcom.com", response="42ce3cef44b22f50c6a6071bc8"Content-Type: application/sdpContent-Length: 140v=0o=UserA 2890844526 2890844526 IN IP4 here.coms=Session SDPc=IN IP4 100.101.102.103t=0 0m=audio 49172 RTP/AVP 0a=rtpmap:0 PCMU/8000|SIP/2.0 407 Proxy Authorization RequiredVia: SIP/2.0/UDP here.com:5060From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>Call-ID: 12345600@here.comCSeq: 1 INVITEProxy-Authenticate: Digest realm="WorldCom SIP", domain="sip:ss1.wcom.com", nonce="wf84f1cczx41ae6cbeaea9ce88d359", opaque="", stale=FALSE, algorithm=MD5Content-Length: 0|INVITE sip:UserB@there.com SIP/2.0Via: SIP/2.0/UDP here.com:5060From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>Call-ID: 12345600@here.comCSeq: 2 INVITEContact: <sip:UserA@100.101.102.103>Proxy-Authorization:Digest username="UserA", realm="WorldCom SIP", nonce="wf84f1ceczx41ae6cbe5aea9c8e88d359", opaque="", uri="sip:ss1.wcom.com", response="42ce3cef44b22f50c6a6071bc8"Content-Type: application/sdpContent-Length: 140v=0o=UserA 2890844526 2890844526 IN IP4 here.coms=Session SDPc=IN IP4 100.101.102.103t=0 0m=audio 49172 RTP/AVP 0a=rtpmap:0 PCMU/8000|SIP/2.0 407 Proxy Authorization RequiredVia: SIP/2.0/UDP ss1.wcom.com:5060;branch=230f2.1Via: SIP/2.0/UDP here.com:5060Record-Route: <sip:UserB@there.com;maddr=ss1.wcom.com>From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>;tag=838209Call-ID: 12345600@here.comCSeq: 2 INVITEProxy-Authenticate: Digest realm="MCI SIP", domain="sip:ss2.mci.com", nonce="c1e22c41ae6cbe5ae983a9c8e88d359", opaque="", stale=FALSE, algorithm=MD5Content-Length: 0|SIP/2.0 407 Proxy Authorization RequiredVia: SIP/2.0/UDP here.com:5060Record-Route: <sip:UserB@there.com;maddr=ss1.wcom.com>From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>;tag=2341dCall-ID: 12345600@here.comCSeq: 2 INVITEProxy-Authenticate: Digest realm="MCI SIP", domain="sip:ss2.mci.com", nonce="c1e22c41ae6cbe5ae983a9c8e88d359", opaque="", stale=FALSE, algorithm=MD5Content-Length: 0|INVITE sip:UserB@there.com SIP/2.0Via: SIP/2.0/UDP here.com:5060From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>Call-ID: 12345600@here.comCSeq: 3 INVITEContact: <sip:UserA@100.101.102.103>Proxy-Authorization:Digest username="UserA", realm="WorldCom SIP", nonce="wf84f1ceczx41ae6cbe5aea9c8e88d359", opaque="", uri="sip:ss1.wcom.com", response="42ce3cef44b22f50c6a6071bc8"Proxy-Authorization:Digest username="UserA", realm="MCI SIP", nonce="c1e22c41ae6cbe5ae983a9c8e88d359", opaque="", uri="sip:ss2.mci.com", response="f44ab22f150c6a56071bce8"Content-Type: application/sdpContent-Length: 140v=0o=UserA 2890844526 2890844526 IN IP4 here.coms=Session SDPc=IN IP4 100.101.102.103t=0 0m=audio 49172 RTP/AVP 0a=rtpmap:0 PCMU/8000|INVITE sip:UserB@there.com SIP/2.0Via: SIP/2.0/UDP ss1.wcom.com:5060;branch=230f2.1Via: SIP/2.0/UDP here.com:5060Record-Route: <sip:UserB@there.com;maddr=ss1.wcom.com>From: BigGuy <sip:UserA@here.com>To: LittleGuy <sip:UserB@there.com>Call-ID: 12345600@here.comCSeq: 3 INVITEContact: <sip:UserA@100.101.102.103>Proxy-Authorization:Digest username="UserA", realm="MCI SIP", nonce="c1e22c41ae6cbe5ae983a9c8e88d359", opaque="", uri="sip:ss2.mci.com", response="f44ab22f150c6a56071bce8"Content-Type: application/sdpContent-Length: 140v=0o=UserA 2890844526 2890844526 IN IP4 here.coms=Session SDPc=IN IP4 100.101.102.103t=0 0m=audio 49172 RTP/AVP 0a=rtpmap:0 PCMU/8000|