SIP Registration failed and got ‘404 Not Found’ code when SIP Account login to Yealink DECT W52P|W56P. But when SIP Account login with soft-phone (Zoiper), SIP Registration is Success.
Call Flow
Call flow for 4_2812107683@192.168.104.254 (Color by Request/Response)
│REGISTER sip:10.17.28.11:5060 SIP/2.0
10.17.28.7:5060 10.17.28.11:5060 │Via: SIP/2.0/UDP 10.17.28.7:5060;branch=z9hG4bK727295058;rport
──────────┬───────── ──────────┬───────── │From: "Extension Name" <sip:000024@10.17.28.11:5060>;tag=2478142817
│ REGISTER │ │To: "Extension Name" <sip:000024@10.17.28.11:5060>
07:00:49.382522 │ ──────────────────────────> │ │Call-ID: 4_2812107683@192.168.104.254
+0.000724 │ 404 Not Found │ │CSeq: 1 REGISTER
07:00:49.383246 │ <────────────────────────── │ │Contact: sip:000024@10.17.28.7:5060
│ │ │Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER
│ │ │SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
│ │ │Max-Forwards: 70
│ │ │User-Agent: Yealink W52P 25.81.0.60
│ │ │Expires: 3600
│ │ │Allow-Events: talk,hold,conference,refer,check-sync
│ │ │Line: 5
│ │ │Content-Length: 0
│SIP/2.0 404 Not Found
10.17.28.7:5060 10.17.28.11:5060 │Via: SIP/2.0/UDP 10.17.28.7:5060;rport=5060;received=10.17.28.7;branch=
──────────┬───────── ──────────┬───────── │hG4bK727295058
│ REGISTER │ │Call-ID: 4_2812107683@192.168.104.254
07:00:49.382522 │ ──────────────────────────> │ │From: “Extension Name” sip:000024@10.17.28.11;tag=2478142817
+0.000724 │ 404 Not Found │ │To: “Extension Name” sip:000024@10.17.28.11;tag=z9hG4bK727295058
07:00:49.383246 │ <────────────────────────── │ │CSeq: 1 REGISTER
│ │ │Server: VitalPBX
│ │ │Content-Length: 0
│ │ │
To: “Extension Name” sip:000024@10.17.28.11:5060
Call-ID: 4_2812107683@192.168.104.254
CSeq: 1 REGISTER
Contact: sip:000024@10.17.28.7:5060
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink W52P 25.81.0.60
Expires: 3600
Allow-Events: talk,hold,conference,refer,check-sync
Line: 5
Content-Length: 0
2022/10/29 07:00:49.383246 10.17.28.11:5060 → 10.17.28.7:5060
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP 10.17.28.7:5060;rport=5060;received=10.17.28.7;branch=z9hG4bK727295058
Call-ID: 4_2812107683@192.168.104.254
From: “Extension Name” sip:000024@10.17.28.11;tag=2478142817
To: “Extension Name” sip:000024@10.17.28.11;tag=z9hG4bK727295058
CSeq: 1 REGISTER
Server: VitalPBX
Content-Length: 0