The call set-up technique of this invention is characterized by the use of channel information from both base station and subscriber terminal in determining the radio traffic channel upon which to set-up a new call. Communication between the base station and subscriber terminal is carried out on a signalling...http://www.google.com/patents/US5345597?utm_source=gb-gplus-sharePatent US5345597 - Call set-up in a radio communication system with dynamic channel allocation