class of service 造句

performs PABX data-base programming and regular service change to control class of service on all telephone sets in the hotel.

If the portion of traffic that requires encryption is relatively small, carving out a separate class of service for it might be appropriate.

A display on a phone or console showing calling phone number, called number, trunk number, type of call, class of service and perhaps, some other characteristics of the call.

Where an involuntary change of itinerary is made, a passenger shall be entitled to the free baggage allowance applicable to the class of service shown on the original ticket.