And this is the sip log of the HT841: I have to add some space in the log ip to be able to publish
HT841 — 2025-02-13 15:29:29. 395 RECEIVING FROM 10. 6. 10. 100:5060
INVITE sip : xxxxxxx101@10. 6. 10. 20:47754 SIP/2. 0
Via: SIP/2. 0/UDP 10. 6. 10. 100:5060;rport;branch=z9hG4bKPj4a13f591-0c02-4a17-9f7f-e2ea14d8c017
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=05b32886-2e7b-4fb2-9e8c-3c5802b3a9f7
To: <sip : xxxxxxx101@10. 6. 10. 20>
Contact: <sip : xxxxxxx7300@10. 6. 10. 100:5060>
Call-ID: cba4a9fc-35f6-48af-a495-68866f16c9f7
CSeq: 15713 INVITE
Allow: OPTIONS, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, MESSAGE, REFER
Supported: 100rel, timer, replaces, norefersub, histinfo
Session-Expires: 1800
Min-SE: 90
Max-Forwards: 70
User-Agent: FPBX-16. 0. 40. 11(20. 5. 2)
Content-Type: application/sdp
Content-Length: 328
v=0
o=- 460351312 460351312 IN IP4 10. 6. 10. 100
s=Asterisk
c=IN IP4 10. 6. 10. 100
t=0 0
m=audio 16494 RTP/AVP 0 8 18 4 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:4 G723/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=maxptime:150
a=sendrecv
HT841 — 2025-02-13 15:29:29. 398 SENDING TO 10. 6. 10. 100:5060
SIP/2. 0 100 Trying
Via: SIP/2. 0/UDP 10. 6. 10. 100:5060;rport=5060;branch=z9hG4bKPj4a13f591-0c02-4a17-9f7f-e2ea14d8c017
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=05b32886-2e7b-4fb2-9e8c-3c5802b3a9f7
To: <sip : xxxxxxx101@10. 6. 10. 20>
Call-ID: cba4a9fc-35f6-48af-a495-68866f16c9f7
CSeq: 15713 INVITE
Supported: replaces, path, timer, eventlist
User-Agent: Grandstream HT841 1. 0. 7. 3
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0
HT841 — 2025-02-13 15:29:29. 405 SENDING TO 10. 6. 10. 100:5060
SIP/2. 0 404 Not Found
Via: SIP/2. 0/UDP 10. 6. 10. 100:5060;rport=5060;branch=z9hG4bKPj4a13f591-0c02-4a17-9f7f-e2ea14d8c017
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=05b32886-2e7b-4fb2-9e8c-3c5802b3a9f7
To: <sip : xxxxxxx101@10. 6. 10. 20>;tag=1690782022
Call-ID: cba4a9fc-35f6-48af-a495-68866f16c9f7
CSeq: 15713 INVITE
Supported: replaces, path, timer, eventlist
User-Agent: Grandstream HT841 1. 0. 7. 3
Warning: 399 GS “Requested user ID is unknown”
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0
HT841 — 2025-02-13 15:29:29. 407 RECEIVING FROM 10. 6. 10. 100:5060
ACK sip : xxxxxxx101@10. 6. 10. 20:47754 SIP/2. 0
Via: SIP/2. 0/UDP 10. 6. 10. 100:5060;rport;branch=z9hG4bKPj4a13f591-0c02-4a17-9f7f-e2ea14d8c017
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=05b32886-2e7b-4fb2-9e8c-3c5802b3a9f7
To: <sip : xxxxxxx101@10. 6. 10. 20>;tag=1690782022
Call-ID: cba4a9fc-35f6-48af-a495-68866f16c9f7
CSeq: 15713 ACK
Max-Forwards: 70
User-Agent: FPBX-16. 0. 40. 11(20. 5. 2)
Content-Length: 0
HT841 — 2025-02-13 15:29:32. 139 SENDING TO 10. 6. 10. 100:5060
NOTIFY sip : 10. 6. 10. 100 SIP/2. 0
Via: SIP/2. 0/UDP 10. 6. 10. 20:47754;branch=z9hG4bK482821662;rport
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=632529678
To: <sip : 10. 6. 10. 100>
Call-ID: 2132233037-47754-14@BA. G. BA. CA
CSeq: 130 NOTIFY
Contact: <sip : xxxxxxx7300@10. 6. 10. 20:47754>
Max-Forwards: 70
User-Agent: Grandstream HT841 1. 0. 7. 3
Supported: replaces, path, timer, eventlist
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0
HT841 — 2025-02-13 15:29:32. 142 RECEIVING FROM 10. 6. 10. 100:5060
SIP/2. 0 401 Unauthorized
Via: SIP/2. 0/UDP 10. 6. 10. 20:47754;rport=47754;received=10. 6. 10. 20;branch=z9hG4bK482821662
Call-ID: 2132233037-47754-14@BA. G. BA. CA
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=632529678
To: <sip : 10. 6. 10. 100>;tag=z9hG4bK482821662
CSeq: 130 NOTIFY
WWW-Authenticate: Digest realm=“asterisk”,nonce=“1739456972/0de23efc391601c6f6eb627676861b29”,opaque=“4799553162c419e3”,algorithm=MD5,qop=“auth”
Server: FPBX-16. 0. 40. 11(20. 5. 2)
Content-Length: 0
HT841 — 2025-02-13 15:29:32. 144 SENDING TO 10. 6. 10. 100:5060
NOTIFY sip : 10. 6. 10. 100 SIP/2. 0
Via: SIP/2. 0/UDP 10. 6. 10. 20:47754;branch=z9hG4bK404702204;rport
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=632529678
To: <sip : 10. 6. 10. 100>
Call-ID: 2132233037-47754-14@BA. G. BA. CA
CSeq: 131 NOTIFY
Contact: <sip : xxxxxxx7300@10. 6. 10. 20:47754>
Authorization: Digest username=“xxxxxxx7300”, realm=“asterisk”, nonce=“1739456972/0de23efc391601c6f6eb627676861b29”, uri=“sip : 10. 6. 10. 100”, response=“5152614e904f6d05102628a4a3cf3dc7”, algorithm=MD5, cnonce=“14669459”, opaque=“4799553162c419e3”, qop=auth, nc=00000001
Max-Forwards: 70
User-Agent: Grandstream HT841 1. 0. 7. 3
Supported: replaces, path, timer, eventlist
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE
Content-Length: 0
HT841 — 2025-02-13 15:29:32. 146 RECEIVING FROM 10. 6. 10. 100:5060
SIP/2. 0 501 Not Implemented
Via: SIP/2. 0/UDP 10. 6. 10. 20:47754;rport=47754;received=10. 6. 10. 20;branch=z9hG4bK404702204
Call-ID: 2132233037-47754-14@BA. G. BA. CA
From: <sip : xxxxxxx7300@10. 6. 10. 20>;tag=632529678
To: <sip : 10. 6. 10. 100>;tag=z9hG4bK404702204
CSeq: 131 NOTIFY
Server: FPBX-16. 0. 40. 11(20. 5. 2)
Content-Length: 0