In a communications system having at least one service entity and a plurality of endpoints each including a logical entity and a terminal, a method facilitates a session between at least two of the endpoints in the system. The method includes: receiving a first message having information that includes a request for a session between a first endpoint that includes a non-dispatch terminal and at least one other endpoint; detecting that the first endpoint includes a non-dispatch terminal as a function of the first endpoint being unable to perform at least one function; and causing the at least one function to be performed on behalf of the first endpoint by the at least one service entity to facilitate the session between the first endpoint and the at least one other endpoint.