That's an open-ended question, it usually depends on your hardware and your configuration.

Here are some real-world examples.
https://freeswitch.org/confluence/display/FREESWITCH/Real-world+results

The only way to find the capacity of FreeSWITCH in your environment is through real-world usage, you should monitor your servers and in particular keep an eye on the load average. You want the load average to stay below the number of physical hardware CPU threads.


From: FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org> on behalf of Tahir Almas Dhesi <tahir@ictinnovations.com>
Sent: Wednesday, November 23, 2022 20:03
To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>
Subject: [Freeswitch-users] maximum cps limit of freeswitch server
 
what is the maximum cps limit of a good freeswitch  node (single node ) 

regards
Tahir Almas

Managing Partner
ICT Innovations
http://www.ictinnovations.com
Leveraging open source in ICT