ICE disconnected JVB frequently in call causing voice break

ICE disconnected JVB occurring in every 30 to 40 seconds which is causing voice breaking. Attaching logs for reference.

2023-04-05T13:08:41.356Z [modules/xmpp/JingleSessionPC.js] <peerconnection.oniceconnectionstatechange>: (TIME) ICE disconnected JVB: 315068.09999999776

2023-04-05T13:08:00.429Z [modules/connectivity/IceFailedHandling.js] <ml._actOnIceFailed>: ICE failed, enableForcedReload: undefined, enableIceRestart: undefined, supports restart by terminate: true

2023-04-05T13:08:00.430Z [modules/connectivity/IceFailedHandling.js] <ml._actOnIceFailed>: Sending ICE failed - the connection did not recover, ICE state: disconnected, use ‘session-terminate’: true

2023-04-05T13:08:00.662Z [modules/connectivity/IceFailedHandling.js] session-terminate for ice restart - done

2023-04-05T13:08:00.975Z [modules/xmpp/JingleSessionPC.js] <peerconnection.oniceconnectionstatechange>: (TIME) ICE checking JVB: 274690.30000000075

2023-04-05T13:08:01.761Z [modules/xmpp/JingleSessionPC.js] <peerconnection.oniceconnectionstatechange>: (TIME) ICE connected JVB: 275476.09999999776

once the ICE connected JVB, the conference starts working fine but this issue is coming frequently.

This is a network problem between the clients and the server, you need to investigate that part.

Can you help in knowing how to investigate that in detail as telnet we have tried

You can setup some iperf testing with an external service to monitor the connection between those and see is that stable.
Yeah, everything depends on the provider, tools, vms you use and debugging network problems is out of topic for this forum.

It can be problem with the server connectivity if everyone is experiencing this at the same time. Or it can be a problem with connectivity on the client side if just that client is experiencing it.