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Class B Terminal

Class B Terminal

In a GSM and UMTS system a class B mobile may be attached to both PS (Packet Switched) and CS (Circuit Switched) services, but the mobile can only operate one set of services at a time. When the mobile is in both idle mode (UMTS and GSM) and packet idle mode (GPRS) it should be able to monitor paging channels for both circuit switched and packet switched services depending on the mode of network operation.

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