Hi,
 
I'm looking for pointers on the following scenario.
 
I have two sites (A and B) and sip traffic is sent from A to B.  At each site there are a number of SIP (Asterisk) servers and a Kamailio server.
 
The two sites have various network routes (X, Y & Z) between them.  I have been asked to load balance the inter-site SIP traffic across the available links with a 20/20/60 traffic split (dispatcher, carrierroute).
 
Each Kamailio server has multiple IP addresses and these are used to direct traffic to specific routes (Kamailio at site A IP 111.111.111.1 to Kamailio site B 111.111.111.2 defines route X for example).
 
For any given call, the complete call (SIP and both RTP streams) should travel wholly over one route.  
 
I would welcome any suggestions about how best to route the whole call (sip & rtp) over a specific route,
 
I was working on a solution with multiple RTPProxy instances, but was wondering if this is the best solution.
 
Thanks in advance.
Mark