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Telephone operator: Quiz


Question 1: As well as those employed by the public networks, operators are also needed at ________ to answer incoming calls and connect them to the correct extension.
Integrated Services Digital NetworkPrivate branch exchangeCentrexIP PBX

Question 2: For example, users of a mobile phone will register with a mobile phone operator to receive ________.
Network switching subsystemMobility managementGSM servicesGeneral Packet Radio Service

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