Hello ,

I am using Freeswitch 1.6.5V to accomplish video conference through veto client provided by Freeswitch.

When i am dialing 3500 (default dialplan extension) the user is connecting into video conference but if I increase the number of users upto 3 itself  CPU usage crosses 160% + 

Currently i am using Centos 6.7, 4GB RAM and Intel Pentium Dual 2GHz processor.

Can anyone suggest me 

-->  what is the system requirements (like OS, RAM, Processor..........)?

-->  i would like to know how many conferences(with max members in each conference) was supported by freeswitch.

Please tell me above information.