Multi Tenant in our Rocket Chat Server

I would like to offer Rocket Chat service for different customer and not only for our Office, we are an small VoIP Company and we like to add value to our Telephony Customers.
How can we add/offer service to different Companies (Customers) from our own same server?

Server Setup Information

Version 3.4.0
Apps Engine Version 1.15.0
Database Migration 197
Database Migration Date July 1, 2020 12:24 PM
Installed at June 26, 2020 3:57 PM
Uptime 20 hours, 48 minutes, 22 seconds
Deployment ID bCd65Erh7AAtK36ic
PID 14950
Running Instances 1
OpLog Enabled

Runtime Environment

OS Type Linux
OS Platform linux
OS Arch x64
OS Release 4.15.0-108-generic
Node Version v12.14.0
Mongo Version 4.0.19
Mongo Storage Engine mmapv1
OS Uptime 5 days, 18 hours, 59 minutes, 48 seconds
OS Load Average 0.00, 0.00, 0.00
OS Total Memory 3.85 GB
OS Free Memory 495.55 MB
OS CPU Count 2

Build Environment

OS Platform linux
OS Arch x64
OS Release 5.3.0-1028-azure
Node Version v12.16.1
Date June 30, 2020 11:28 AM