Nmap scan report for access04.sbc.cspirevoice.com (162.210.119.196) Host is up (0.057s latency). Not shown: 999 filtered tcp ports (no-response) PORT STATE SERVICE VERSION 5060/tcp open sip SIP/2.0 (Status: 200 OK) |_sip-methods: PRACK, INVITE ,ACK, BYE, CANCEL, UPDATE, SUBSCRIBE,NOTIFY, REFER, MESSAGE, OPTIONS | fingerprint-strings: | SIPOptions: | SIP/2.0 200 OK | Call-ID: 50000 | CSeq: 42 OPTIONS | From: ;tag=root | ;tag=sip+2+cb5502fc+c28bed38 | Via: SIP/2.0/TCP nm;received=208.76.253.234;branch=foo | Server: SIP/2.0 | Content-Length: 0 |_ Accept: application/sdp, application/dtmf-relay 1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service : SF-Port5060-TCP:V=7.92%I=7%D=9/3%Time=68B8ED5D%P=x86_64-redhat-linux-gnu%r SF:(SIPOptions,10C,"SIP/2\.0\x20200\x20OK\r\nCall-ID:\x2050000\r\nCSeq:\x2 SF:042\x20OPTIONS\r\nFrom:\x20;tag=root\r\nTo:\x20 SF:;tag=sip\+2\+cb5502fc\+c28bed38\r\nVia:\x20SIP/2\.0/TCP\x20nm;received= SF:208\.76\.253\.234;branch=foo\r\nServer:\x20SIP/2\.0\r\nContent-Length:\ SF:x200\r\nAccept:\x20application/sdp,\x20application/dtmf-relay\r\n\r\n"); Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port Device type: general purpose Running: Linux 3.X|4.X OS CPE: cpe:/o:linux:linux_kernel:3 cpe:/o:linux:linux_kernel:4 OS details: Linux 3.10 - 4.11 Network Distance: 13 hops TRACEROUTE (using port 5060/tcp) HOP RTT ADDRESS 1 0.19 ms 208.76.251.177.rdns.ColocationAmerica.com (208.76.251.177) 2 7.22 ms gw.mcom-colocationamerica.com (208.64.231.81) 3 0.63 ms r2b4.n1.p1401.lax.multacom.net (64.69.46.11) 4 ... 5 10.90 ms be2931.ccr31.phx01.atlas.cogentco.com (154.54.44.85) 6 19.98 ms be5471.ccr21.elp02.atlas.cogentco.com (154.54.166.57) 7 31.04 ms be3821.ccr31.dfw01.atlas.cogentco.com (154.54.165.25) 8 37.83 ms port-channel8121.ccr91.jan02.atlas.cogentco.com (154.54.40.250) 9 38.84 ms be2632.rcr71.jan01.atlas.cogentco.com (154.54.168.210) 10 46.94 ms 38.104.250.50 11 47.29 ms et-0-0-0.jcsncr04.cspire.net (198.28.137.17) 12 47.94 ms 198.28.138.161 13 57.28 ms 162.210.119.196 OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 63.35 seconds