Multiple Accounting copies

Hi, I need to send copies of accounting packets going to multiple servers. I do not want to set this up as failover or load balancing. I was able to setup one home server in proxy.conf for accounting and that is working fine but I'm unable to send this to multiple servers.Do I need to have multiple copies of copy-acct-to-home-server in sites-available ? Also do I need to send accounting packets on different port for every server ? Thanks Shreya.