The method of claim 15, wherein RTO.sub.max is determined using an equation: RTO.sub.max=(L.sub.q-D.sub.e-.alpha.j.sub.e)/(I+1), where L.sub.q is a transmission latency requirement, D.sub.e is a transmission transfer delay, .alpha. is apre-determined constant, j.sub.e is a jitter delay, and I is a number re-transmissions.19.