The number of calls that can be queued to an announcement depends on the size of the communication server. The capacity tables in the Avaya Aura® Communication Manager System Capacities Table have details for each communication server model.

Internal announcements are delivered by a multiport or channel announcement board, and a call receives an announcement only when the call connects to one of the announcement ports or channels. Therefore, all calls wait in a single queue to gain access to a channel on the announcement board regardless of the split announcement. The same announcement can be delivered over multiple channels. Announcements are delivered on demand, so a call that connects to a channel receives an announcement immediately and does not have to wait for the announcement to finish and start again.