interface: eth0 (151.80.57.157/255.255.255.255) filter: ( port 5060 ) and ((ip || ip6) || (vlan && (ip || ip6))) match: 41615045719 ^C[root@vps-ede35d88 centos]# ngrep -qtW byline astpp4.4z.com port 5060 interface: eth0 (151.80.57.157/255.255.255.255) filter: ( port 5060 ) and ((ip || ip6) || (vlan && (ip || ip6))) match: astpp4.4z.com T 2021/05/26 11:08:35.088450 213.145.5.138:58733 -> 151.80.57.157:5060 [AP] #2 INVITE sip:7843973936@astpp4.4z.com;transport=TCP SIP/2.0. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---7ce140ab8cc5a565;rport. Max-Forwards: 70. Contact: . To: . From: ;tag=db63a559. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 1 INVITE. Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE. Content-Type: application/sdp. User-Agent: Z 5.4.12 v2.10.13.2. Allow-Events: presence, kpml, talk. Content-Length: 334. . v=0. o=Z 1622027307061 1 IN IP4 213.145.5.138. s=Z. c=IN IP4 213.145.5.138. t=0 0. m=audio 8000 RTP/AVP 106 9 98 101 0 8 3. a=rtpmap:106 opus/48000/2. a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1. a=rtpmap:98 telephone-event/48000. a=fmtp:98 0-16. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=sendrecv. T 2021/05/26 11:08:35.088735 151.80.57.157:5060 -> 213.145.5.138:58733 [AP] #3 SIP/2.0 100 Trying. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---7ce140ab8cc5a565;rport=58733;received=213.145.5.138. From: ;tag=db63a559. To: . Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 1 INVITE. User-Agent: ASTPP. Content-Length: 0. . T 2021/05/26 11:08:35.089679 151.80.57.157:5060 -> 213.145.5.138:58733 [AP] #4 SIP/2.0 407 Proxy Authentication Required. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---7ce140ab8cc5a565;rport=58733;received=213.145.5.138. From: ;tag=db63a559. To: ;tag=g8tDUc3j16UpH. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 1 INVITE. User-Agent: ASTPP. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: path, replaces. Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Proxy-Authenticate: Digest realm="astpp4.4z.com", nonce="b6d2d8f8-be12-11eb-8d17-cf4bbc7bbce3", algorithm=MD5, qop="auth". Content-Length: 0. . T 2021/05/26 11:08:35.140956 213.145.5.138:58733 -> 151.80.57.157:5060 [AP] #6 ACK sip:7843973936@astpp4.4z.com;transport=TCP SIP/2.0. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---7ce140ab8cc5a565;rport. Max-Forwards: 70. To: ;tag=g8tDUc3j16UpH. From: ;tag=db63a559. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 1 ACK. Content-Length: 0. . T 2021/05/26 11:08:35.231775 213.145.5.138:58733 -> 151.80.57.157:5060 [AP] #8 INVITE sip:7843973936@astpp4.4z.com;transport=TCP SIP/2.0. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---07443b28571c7467;rport. Max-Forwards: 70. Contact: . To: . From: ;tag=db63a559. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 2 INVITE. Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE. Content-Type: application/sdp. Proxy-Authorization: Digest username="8620826254",realm="astpp4.4z.com",nonce="b6d2d8f8-be12-11eb-8d17-cf4bbc7bbce3",uri="sip:7843973936@astpp4.4z.com;transport=TCP",response="2e6232ec4afa09e5ec7caf324c8b5c15",cnonce="26361d64ea7f443bb78fb37cb9efd915",nc=00000001,qop=auth,algorithm=MD5. User-Agent: Z 5.4.12 v2.10.13.2. Allow-Events: presence, kpml, talk. Content-Length: 334. . v=0. o=Z 1622027307061 1 IN IP4 213.145.5.138. s=Z. c=IN IP4 213.145.5.138. t=0 0. m=audio 8000 RTP/AVP 106 9 98 101 0 8 3. a=rtpmap:106 opus/48000/2. a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1. a=rtpmap:98 telephone-event/48000. a=fmtp:98 0-16. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=sendrecv. T 2021/05/26 11:08:35.232013 151.80.57.157:5060 -> 213.145.5.138:58733 [AP] #10 SIP/2.0 100 Trying. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---07443b28571c7467;rport=58733;received=213.145.5.138. From: ;tag=db63a559. To: . Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 2 INVITE. User-Agent: ASTPP. Content-Length: 0. . T 2021/05/26 11:08:35.626485 151.80.57.157:5060 -> 213.145.5.138:58733 [AP] #18 SIP/2.0 180 Ringing. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---07443b28571c7467;rport=58733;received=213.145.5.138. From: ;tag=db63a559. To: ;tag=HHm6v7KpyFj9c. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 2 INVITE. Contact: . User-Agent: ASTPP. Accept: application/sdp. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: path, replaces. Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Length: 0. . T 2021/05/26 11:09:20.826942 151.80.57.157:5060 -> 213.145.5.138:58733 [AP] #59 SIP/2.0 200 OK. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---07443b28571c7467;rport=58733;received=213.145.5.138. From: ;tag=db63a559. To: ;tag=HHm6v7KpyFj9c. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 2 INVITE. Contact: . User-Agent: ASTPP. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: path, replaces. Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer. Content-Type: application/sdp. Content-Disposition: session. Content-Length: 222. . v=0. o=FreeSWITCH 1622002836 1622002837 IN IP4 151.80.57.157. s=FreeSWITCH. c=IN IP4 151.80.57.157. t=0 0. m=audio 24524 RTP/AVP 0 101. a=rtpmap:0 PCMU/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. T 2021/05/26 11:09:20.881130 213.145.5.138:58733 -> 151.80.57.157:5060 [AP] #61 ACK sip:7843973936@151.80.57.157:5060;transport=tcp SIP/2.0. Via: SIP/2.0/TCP 172.18.5.255:34359;branch=z9hG4bK-524287-1---8fdf8854ac3b54fc;rport. Max-Forwards: 70. Contact: . To: ;tag=HHm6v7KpyFj9c. From: ;tag=db63a559. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 2 ACK. User-Agent: Z 5.4.12 v2.10.13.2. Content-Length: 0. . T 2021/05/26 11:10:12.326219 151.80.57.157:5060 -> 213.145.5.138:58733 [AP] #91 BYE sip:8620826254@213.145.5.138:34359;transport=TCP SIP/2.0. Via: SIP/2.0/TCP 151.80.57.157;rport;branch=z9hG4bK719etUmH8Hr3c. Max-Forwards: 70. From: ;tag=HHm6v7KpyFj9c. To: ;tag=db63a559. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 36459914 BYE. User-Agent: ASTPP. Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE. Supported: path, replaces. Reason: Q.850;cause=16;text="NORMAL_CLEARING". Content-Length: 0. . T 2021/05/26 11:10:12.383428 213.145.5.138:58733 -> 151.80.57.157:5060 [AP] #92 SIP/2.0 200 OK. Via: SIP/2.0/TCP 151.80.57.157;rport=5060;branch=z9hG4bK719etUmH8Hr3c. Contact: . To: ;tag=db63a559. From: ;tag=HHm6v7KpyFj9c. Call-ID: IFNb8q9xNDmQJ-YcbKstjg... CSeq: 36459914 BYE. User-Agent: Z 5.4.12 v2.10.13.2. Content-Length: 0. .