[Freeswitch-users] increase Max session

Dear All, My system running with FS 1.0.6 on debian over openvz x86_64. i'm seting up max session to 2000 after live traffic coming max session reduce to 917. FS run in none proxy mode and CPU use about 5% before start FS i use ulimit -s 240 and other So i want to know how to increase max session to 2000. BG Dome C.