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Automatic Number Identification for Small Step-by-Step Offices

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1 Author(s)
H. Moore ; Bell Telephone Labs., NJ

With the aid of a new automatic number identification (ANI) system, direct distance dialing (DDD) is being provided to telephone customers served by small step-by-step offices. This paper describes this new system designated ANI Type-C. Electronic and electromechanical techniques are used with glow lamps serving as major circuit elements. A brief review of previous ANI developments is also included.

Published in:

IEEE Transactions on Communication Technology  (Volume:15 ,  Issue: 2 )