System and method for controlling and managing sessions between endpoints in a communications system

In a communications system having at least one service entity and a plurality of endpoints each comprising a logical entity and a terminal, a method for facilitating a session between at least two of the endpoints, comprising:

• receiving, by the at least one service entity, a first message having information that includes a request for a session between a first endpoint comprising a non-dispatch terminal and a group to which at least one other endpoint comprising a dispatch terminal is affiliated;
• detecting, by the at least one service entity, that the first endpoint comprises a non-dispatch terminal as a function of the first endpoint being unable to affiliate with the group;
• and
• causing the group affiliation to be performed on behalf of the first endpoint by the at least one service entity for facilitating the session between the first endpoint and the at least one other endpoint.