[Freeswitch-users] How to limit a certain gateway/extension

Hello Everyone Many thanks for helping me out. I got most of the switch setup. The mod_cdr works well now. I got some ideas of the routing patterns. I have1 question and would greatly appreciate your help in resolving this issue. How can i limit a certain extension/gateway to only able to initiate a predefined number of calls. For example extension 1000 connects to the switch. And now that extension can only make 24 concurrent calls. How can i set this up. Best Regards Hareem. Haque