Set WebSocket Server URL to wss://web-conference-lar0053.duckdns.org/ws.
Leave ICE servers empty or use [{url:'stun:stun.l.google.com:19302'}], and tick Enable RTCWeb Breaker.
Fill Display name = 3044, Private identity = 3044, Public identity = sip:3044@web-conference-lar0053.duckdns.org, Password = 3044ab, Realm = web-conference-lar0053.duckdns.org.
Click Login, type 1000 in the call box and press Call.
sipML5 is old and only handles one video m-line, so it takes part in the audio mix and shows one remote video at most. The studio on this page handles the full Unified Plan renegotiation.
Linphone (desktop or mobile)
Add a SIP account with username 3001, password 3001ab, domain 82.70.77.39 (or the DuckDNS name), transport UDP.
Disable media encryption (or choose SRTP-SDES) and enable VP8 and H.264 under video codecs.
Call 1000 for the SFU room or 9999 for the echo test. Accounts 3002 and 3003 work the same way.
MicroSIP uses the same settings. Plain UDP SIP needs UDP 5060 and UDP 10000-10200 open in the Oracle Cloud security list.