U 2015/10/19 10:59:05.566757 192.168.76.1:5060 -> 192.168.76.155:5062 OPTIONS sip:331_yeal52p@192.168.76.155:5062 SIP/2.0. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK3ea0a3e9;rport. Max-Forwards: 70. From: "asterisk" ;tag=as4e2e9353. To: . Contact: . Call-ID: 268ffbc12e57f43d640d5f4b2a78df9e@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Asterisk PBX. Date: Mon, 19 Oct 2015 08:59:05 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE. Supported: replaces, timer. Content-Length: 0. . U 2015/10/19 10:59:05.640293 192.168.76.155:5062 -> 192.168.76.1:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK3ea0a3e9;rport. From: "asterisk" ;tag=as4e2e9353. To: ;tag=300243272. Call-ID: 268ffbc12e57f43d640d5f4b2a78df9e@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Yealink SIP-W52P 25.50.0.20. Content-Length: 0. . U 2015/10/19 10:59:47.122430 192.168.76.1:5060 -> 192.168.76.155:5063 OPTIONS sip:332_yeal52p@192.168.76.155:5063 SIP/2.0. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK00972980;rport. Max-Forwards: 70. From: "asterisk" ;tag=as31718921. To: . Contact: . Call-ID: 44b005ca0c6880ea06f3a9c97bfc0337@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Asterisk PBX. Date: Mon, 19 Oct 2015 08:59:47 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE. Supported: replaces, timer. Content-Length: 0. . U 2015/10/19 10:59:47.190843 192.168.76.155:5063 -> 192.168.76.1:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK00972980;rport. From: "asterisk" ;tag=as31718921. To: ;tag=742277585. Call-ID: 44b005ca0c6880ea06f3a9c97bfc0337@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Yealink SIP-W52P 25.50.0.20. Content-Length: 0. . U 2015/10/19 11:00:05.642405 192.168.76.1:5060 -> 192.168.76.155:5062 OPTIONS sip:331_yeal52p@192.168.76.155:5062 SIP/2.0. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK29ef4fa4;rport. Max-Forwards: 70. From: "asterisk" ;tag=as5f5ae4b8. To: . Contact: . Call-ID: 5d61d6756302ee6301c4ee7b4ff381ce@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Asterisk PBX. Date: Mon, 19 Oct 2015 09:00:05 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE. Supported: replaces, timer. Content-Length: 0. . U 2015/10/19 11:00:05.714548 192.168.76.155:5062 -> 192.168.76.1:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK29ef4fa4;rport. From: "asterisk" ;tag=as5f5ae4b8. To: ;tag=543504872. Call-ID: 5d61d6756302ee6301c4ee7b4ff381ce@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Yealink SIP-W52P 25.50.0.20. Content-Length: 0. . U 2015/10/19 11:00:47.192999 192.168.76.1:5060 -> 192.168.76.155:5063 OPTIONS sip:332_yeal52p@192.168.76.155:5063 SIP/2.0. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK4e000cbd;rport. Max-Forwards: 70. From: "asterisk" ;tag=as1d1295bd. To: . Contact: . Call-ID: 7ac8d5ce3abb72df6356b86314c84185@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Asterisk PBX. Date: Mon, 19 Oct 2015 09:00:47 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE. Supported: replaces, timer. Content-Length: 0. . U 2015/10/19 11:00:47.262745 192.168.76.155:5063 -> 192.168.76.1:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK4e000cbd;rport. From: "asterisk" ;tag=as1d1295bd. To: ;tag=923520601. Call-ID: 7ac8d5ce3abb72df6356b86314c84185@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Yealink SIP-W52P 25.50.0.20. Content-Length: 0. . U 2015/10/19 11:01:47.264607 192.168.76.1:5060 -> 192.168.76.155:5063 OPTIONS sip:332_yeal52p@192.168.76.155:5063 SIP/2.0. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK225c8993;rport. Max-Forwards: 70. From: "asterisk" ;tag=as5f37769f. To: . Contact: . Call-ID: 0874839c3d236a72587f575c18e33d50@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Asterisk PBX. Date: Mon, 19 Oct 2015 09:01:47 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE. Supported: replaces, timer. Content-Length: 0. . U 2015/10/19 11:01:47.334825 192.168.76.155:5063 -> 192.168.76.1:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK225c8993;rport. From: "asterisk" ;tag=as5f37769f. To: ;tag=1628536906. Call-ID: 0874839c3d236a72587f575c18e33d50@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Yealink SIP-W52P 25.50.0.20. Content-Length: 0. . U 2015/10/19 11:02:47.336301 192.168.76.1:5060 -> 192.168.76.155:5063 OPTIONS sip:332_yeal52p@192.168.76.155:5063 SIP/2.0. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK73817cab;rport. Max-Forwards: 70. From: "asterisk" ;tag=as0de72de5. To: . Contact: . Call-ID: 6305cdf61fd0b6c47f556ef44b8c71fe@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Asterisk PBX. Date: Mon, 19 Oct 2015 09:02:47 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE. Supported: replaces, timer. Content-Length: 0. . U 2015/10/19 11:02:47.404081 192.168.76.155:5063 -> 192.168.76.1:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.76.1:5060;branch=z9hG4bK73817cab;rport. From: "asterisk" ;tag=as0de72de5. To: ;tag=1868017999. Call-ID: 6305cdf61fd0b6c47f556ef44b8c71fe@192.168.76.1:5060. CSeq: 102 OPTIONS. User-Agent: Yealink SIP-W52P 25.50.0.20. Content-Length: 0. .