How to randomize /jitsi generate room name every time?

Description

I have installed Jitsi Slash Command from Marketplace.
This generates jitsi room URL like below

Join the video call: https://jitsi.domain.com/RocketChatajiopewahip5AGSvbXKSvbonFrZw6pKuKd
Link generated by slashcommand /jitsi

This generates a fixed address (Not random).
How to configure generates random URL?
(FYI: In Slack, /jitsi command generates random URL every time.)

Server Setup Information

  • Version of Rocket.Chat Server: 3.7.1
  • Operating System: Ubuntu 20.04 LTS
  • Deployment Method: docker (docker-compose)
  • Number of Running Instances: 1
  • DB Replicaset Oplog: Enabled
  • NodeJS Version: 12.18.4 - x64
  • MongoDB Version: 4.0.20
  • Proxy: nginx
  • Firewalls involved: disabled UFW

Has anyone known this?