[SR-Users] Using multiple media proxy pools

I have a requirement that I hope can be accomplished. I have to connect to three providers who will be delivering a private IP Layer 2 ethernet endpoint. I need to be able to direct the SIP calls via Kamailio and have the RTP media process through mediaproxy. I also need to try and avoid using separate physical media proxy machines for each SIP provider. Is it possible to run multiple mediaproxy dispatchers bound to separate IP addresses, and run multiple relays with IP addresses corresponding to the various dispatcher subnets. Basically I want to identify pools of mediaproxy servers and choose them based on the provider origination or termination. Alternatively we could use RTP Proxy, though we do not have as much experience with RTP Proxy. Any suggestions that you may have is appreciated. Thanks Stagg