SIP/2.0 404 Not Found
Via: SIP/2.0/UDP nm;branch=foo;rport=26810;received=224.8.220.12
From: <sip:nm@nm>;tag=root
To: <sip:nm2@nm2>;tag=1021F3E3B8AFC949
Call-ID: 50000
CSeq: 42 OPTIONS
User-Agent: FRITZ!OS
Content-Length: 0

Plex Media Server1.41.4.9463-630c9f557

Unauthorized

HTTP/1.1 401 Unauthorized
X-Plex-Protocol: 1.0
Content-Length: 193
Content-Type: text/html
Connection: close
Cache-Control: no-cache
Date: Wed, 26 Feb 2025 05:43:15 GMT


Plex Media Server:
  Version: 1.41.4.9463-630c9f557
  Machine Identifier: 370a991d8385f9d7afead9d6c28b52de4a580d5e