Two dialers active, each dialer at any particular moment will try to reserve/detect only half the number of agents at any particular time.
i.e Ex: if there are 2 dialers and 4 agents then, each dialer will try to reserve only 2 agents.(This is to make sure that a single dialer does not reserve all the agents when they are available and only reserve half of them).
Agent availability for a particular dialer is calculated by dividing the number of agents by number of dialers.
If there are only 3 agents(odd) available for 2 dialers, each dialer during skill balancing, observes only as 1 agent available.