When a voice call is made between two users (Caller and Callee), both of which may have access to multiple voice communication services, the connection is made automatically by the communication equipment through a selectable communication service, based upon characteristics of connection. Those characteristics may include the services available to the users, the day of the week, the time of day, the availability of the Callee on a service, the geographic locations of the Caller and Callee, and Caller pre-established service preferences. Preferably, Caller preferences and associations of callees with unique destination identifiers are stored in a database created for the Caller and available to his communication equipment. An ultimate callee identifier selected for a particular call includes an indication of communication service, and connection an appropriate interface for that service is then provided automatically for the Caller.