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NCJRS Abstract

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NCJ Number: 67534 Find in a Library
Title: KEY TELEPHONE SYSTEM IMPROVES 911 SERVICE
Journal: TELEPHONE ENGINEER AND MANAGEMENT  Dated:(OCTOBER 15, 1977)  Pages:60-62
Author(s): R L HORLACHER
Corporate Author: Harcourt Brace Jovanovich
United States of America
Date Published: 1977
Page Count: 3
Sponsoring Agency: Harcourt Brace Jovanovich
New York, NY 10017
Format: Article
Language: English
Country: United States of America
Annotation: NEW FEATURES ADDED TO EMERGENCY TELEPHONE NUMBER 911 HELP SOLVE COMMUNICATIONS PROBLEMS THAT ARISE IN SUCH SITUATIONS AS A CALLER WHO HANGS UP WITHOUT GIVING AN ADDRESS, OR OTHER COMPLICATIONS.
Abstract: BASED ON THE SUGGESTIONS OF BELL OPERATING COMPANIES, THE 8A KEY TELEPHONE SYSTEM WAS DEVELOPED. THIS NEW SYSTEM HAS CENTRAL-OFFICE TRUNKS TO CONNECT 911 CALLS TO THE EMERGENCY ANSWERING BUREAU, INTRODUCES NEW FEATURES WHICH ALLOW ATTENDANTS TO CONTROL A CONNECTION REGARDLESS OF THE CALLER'S ACTIONS (CALLED-PARTY CONTROL) AND RINGS BACK AN EMERGENCY CALLER FOR MORE INFORMATION BY PRESSING A BUTTON (EMERGENCY RINGBACK). IT IS CAPABLE OF MONITORING THE STATUS OF CALLS PLACED ON HOLD (CALLED-PARTY STATUS) AND TRANSFERRING CALL DIRECTLY-TO FIRE DEPARTMENTS AND HOSPITALS, FOR EXAMPLE, (CALL-TRANSFER CAPABILITY). THE CALL-TRANSFER CONTROL FEATURE ALLOWS THE OPERATOR TO DISCONNECT A TRANSFER LINE WITHOUT DISCONNECTING THE 911 CALLER (TRANSFER RELEASE). THESE NEW FEATURES INVOLVE THE INSTALLATION OF NEW EQUIPMENT, INCLUDING WALL-MOUNTED DEVICES FOR EMERGENCY ANSWERING BUREAUS AND EXTERNAL DEVICES. AS OF 1977, 8A SYSTEMS WERE IN OPERATION AT THE LAW ENFORCEMENT CENTER IN ROCHESTER, MINN., AND IN FARGO, N.D. (LGR)
Index Term(s): Nine-one-one (911) emergency telephone number; Telephone equipment
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=67534

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