11:16:06 2916608491mS SIP Rx: UDP 172.21.3.254:5060 -> 172.21.3.3:5060
REGISTER sip:172.21.3.3:5060 SIP/2.0
Via: SIP/2.0/UDP 172.21.3.254:5060;branch=z9hG4bK3012306721
From: "146" <sip:146@172.21.3.3:5060>;tag=2224301855
To: "146" <sip:146@172.21.3.3:5060>
Call-ID: 0_1031350048@172.21.3.254
CSeq: 1 REGISTER
Contact: <sip:146@172.21.3.254:5060>
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink W60B 77.85.0.25
Expires: 3600
Allow-Events: talk,hold,conference,refer,check-sync
Content-Length: 0
11:16:10 2916612371mS H323Evt: Recv: RegistrationRequest 172.21.3.20; Extn(142), time since last RRQ-KA 55003, Endpoints registered: 36; Endpoints in registration: 0
11:16:10 2916612507mS SIP Rx: UDP 172.21.3.254:5060 -> 172.21.3.3:5060
REGISTER sip:172.21.3.3:5060 SIP/2.0
Via: SIP/2.0/UDP 172.21.3.254:5060;branch=z9hG4bK3012306721
From: "146" <sip:146@172.21.3.3:5060>;tag=2224301855
To: "146" <sip:146@172.21.3.3:5060>
Call-ID: 0_1031350048@172.21.3.254
CSeq: 1 REGISTER
Contact: <sip:146@172.21.3.254:5060>
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink W60B 77.85.0.25
Expires: 3600
Allow-Events: talk,hold,conference,refer,check-sync
Content-Length: 0
Above log is for not registering
Below log is registering Extension
11:17:06 2916667893mS SIP Rx: UDP 172.21.3.201:5060 -> 172.21.3.3:5060
REGISTER sip:172.21.3.3:5060 SIP/2.0
Via: SIP/2.0/UDP 172.21.3.201:5060;branch=z9hG4bK2366631285
From: "112" <sip:112@172.21.3.3:5060>;tag=3354421427
To: "112" <sip:112@172.21.3.3:5060>
Call-ID: 0_1352118177@172.21.3.201
CSeq: 32352 REGISTER
Contact: <sip:112@172.21.3.201:5060>
Authorization: Digest username="112", realm="ipoffice", nonce="b03dd2e4fc57112a164d", uri="sip:172.21.3.3:5060", response="43604b9bc7048fad8450bcace4a4aa71", algorithm=MD5
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink W52P 25.80.0.15
Expires: 3600
Allow-Events: talk,hold,conference,refer,check-sync
Content-Length: 0
11:17:06 2916667898mS SIP Tx: UDP 172.21.3.3:5060 -> 172.21.3.201:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 172.21.3.201:5060;branch=z9hG4bK2366631285
From: "112" <sip:112@172.21.3.3:5060>;tag=3354421427
Call-ID: 0_1352118177@172.21.3.201
CSeq: 32352 REGISTER
User-Agent: IP Office 11.1.0.0.0 build 237
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,INFO,SUBSCRIBE,REGISTER,PUBLISH
Contact: <sip:112@172.21.3.201:5060>
Date: Mon, 02 Aug 2021 07:17:05 GMT
Expires: 180
Server: IP Office 11.1.0.0.0 build 237
Content-Length: 0
To: "112" <sip:112@172.21.3.3:5060>;tag=57a91a03d7444a95