> Each call has two legs: one call leg inbound to the B2BUA and one call > leg outbound from the B2BUA. > > 1500/400 calls > 3000/800 call legs Those results track w/ my testing of a Dual Core 2.33 Mhz box. We are able to achieve about 200 concurrent SIP calls (400 legs) doing G711 to G729 before things start to fall apart.