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By connecting a test telephone set, a technician calls the local telephone number of the automatic number announcement service. This call is connected to equipment at the central office that uses automatic equipment to announce the telephone number of the line calling in. The main purpose of this system is to allow telephone company technicians ...
Milliwatt test, a standardized 1004 Hz, zero dBm sinusoidal test tone used to measure line quality and transmission loss between stations. Ringback number, which causes the calling telephone to ring to verify an installation is working and the phone number routing properly. Some localities reserve only 958 or 959. [4] Each country uses ...
The test consists of calling a reverting calling telephone number (ringback number) or a vertical service code with a standard telephone. Upon answering the call, the exchange plays a unique signal tone as a signal for the installer to hangup the telephone. The exchange then places a reverting call to the originating line, causing the telephone ...
When connected to a line, a lineman's handset is essentially indistinguishable from regular subscriber equipment. The technician can monitor an active call, answer incoming calls, and make outgoing calls. Common tests include checking for dial tone, using ANAC to identify the line, and using a ringback number.
The International Airlines Travel Agent Network (IATAN) is a Miami-based trade association in the United States representing the interests of its member companies and the U.S. travel distribution network (travel agencies). [1] [2] It is an independent department of the International Air Transport Association (IATA). [3]
American Society of Travel Advisors (abbreviated as ASTA) is a trade association which was formed to represent and defend the business and regulatory public policy interests of travel intermediaries, including travel agencies (including traditional "brick and mortar" agencies, online portals, mega- and corporate agencies, and small and mid-market businesses) and tour providers (including ...
The carrier performs a database lookup using the caller's telephone number to obtain the name information for the caller ID service. If the data is with another carrier, then the terminating carrier must perform a lookup and pay a small dip fee to the carrier hosting the information. [ 4 ]
The number for this facility varies with country and provider: United States and Canada: Vertical service code *69; 1169 on rotary phone/pulse dial telephones. The prompt voice behind most U.S. AT&T implementations of this feature is Pat Fleet. Where available, it is offered on a per-call charge (typically 50¢) or an unlimited-use monthly ...