The endpoint cannot join the conference

Hi, dear!
Welcome to our community!
The information you provided is too little. Could you describe your problem in detail?

Hi friend!

This is generally caused by poor network environment.
Network disconnection, firewall on the network, or port or route limitation configured on network devices may cause signaling interaction errors. As a result, the endpoint fails to join the conference.

Thanks!

when I make a conference and add the endpoint, the call is normal.
Only when I join the conference through conference ID and IP address of VP9630, the problem will occur.
It's very strange.

Hello, dear!

Please try this solution, thanks!