Method for providing virtual dedicated access to an inter-exchan

Method for routing a call

Method for routing a call

Method for routing a call

Method for routing in loaded telecommunication networks

Method for routing telephone calls to subscribers of different s

Method for routing telephone calls to subscribers of different s

Method for selectively routing enhanced calls

Method for telecommunications service-to-service...

Method for transferring a subscriber to a new local service prov

Method for transmitting information to remote site using...

Method for updating a local switch internal database in a system

Method for updating a local switch internal database in a system

Method for updating a local switch internal database in system h

Method of activating a station

Method of allocating international transit traffic among a plura

Method of and a system for delivering calls to plural...

Method of and apparatus for mediating common channel...

Method of and system for call routing compliant with internation

Method of and system for efficient use of telecommunication...