Best method for load balancing

Hello

I have been doing some research to see how I can load balance asterisk servers for a calling card service, I found out that it can be done with the load balancers from vovida.org , ultramonkey and openser Witch one is the best method to use?

Thank You

OpenSER is a popular solution- you put SER in front of * and it deals with all the external connections, then forwards them to * as needed…