A cellular telephone system and a method of conducting an inter-system soft handoff

Describes a soft switching method and device for honeycomb-shaped telephone system in the operational support performing system. Monitoring and a base station (22A…) 22D guide groove; the user unit (20) with a pilot strength measuring report. When the receiving pilot frequency measurement intensity report's base station controller (24A, 24B) and base station (24A, 24B) is the honeycomb-shaped system for part, generated in the system the soft switching request. The admissible control subsystem (44) receiving system soft switch, moreover and second honeycomb-shaped telephone system, according to the telephone flow rank, granted or denies request according to a link load message determining telephone flow rank of the admissible control subsystem (44) periodically is received from, and a second honeycomb-shaped telephone system the interface is slot (46) coupling's (32f) on the first honeycomb-shaped telephone system with the link load message. Link load message comprises peak queue and middle frame rate information.