LVS and Asterisk


I have heard a lot about putting Openser on Asterisk, so they can use load balancing. But what about LVS I went to there website: and on the site said that it can be used for VoIP. I was wondering if anyone has used it and how it performed. Would this be a better solution to add load balancing to Asterisk instead of adding Openser?
Please tell me what you think