| 摘要 |
Known is a telecommunications system in which a cordless access subsystem is coupled to an automatic branch exchange. In the known system, the cordless access subsystem forms a microcellular system and a cordless terminal that is locked to the cordless access system has local roaming possibilities. Furthermore, call control is predetermined. In order that cordless terminals in the telecommunications system have access possibilities in accordance to their subscription, the telecommunications system has a call control protocol in which calls can be set up according to various scenarios, depending upon subscription. When the automatic branch exchange to which the cordless terminal is locked is coupled to another automatic branch exchange via an intervening network and the cordless terminal's home profile is in the other automatic branch exchange, a remote scenario can be carried out for allowing the cordless terminal to have access to all the features of its home profile. So, cordless terminals having various subscriptions can be dealt with in a different way. Processing of call control messages at the side of the cordless access subsystem can be made simpler when the cordless access subsystem sends a call control setup message to the rest of the network in the form of a single message containing terminal identification information and user provided information. |
