CALLING LOCAL TELEPHONE COMPANY BUSINESS OFFICES TO DETERMINE THE RESIDENTIAL STATUS OF A WIDE CLASS OF UNRESOLVED TELEPHONE NUMBERS IN A RANDOM-DIGIT-DIALING SAMPLE Gary Shapiro, Abt Associates Inc.; Michael P. Battagli

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Date: 2010-11-17 10:55:28 Answering machine Public switched telephone network Electronic engineering Electronics Human communication Telephony Telephone numbers in the United Kingdom Telephone call		CALLING LOCAL TELEPHONE COMPANY BUSINESS OFFICES TO DETERMINE THE RESIDENTIAL STATUS OF A WIDE CLASS OF UNRESOLVED TELEPHONE NUMBERS IN A RANDOM-DIGIT-DIALING SAMPLE Gary Shapiro, Abt Associates Inc.; Michael P. Battagli Add to Reading List Source URL: www.cdc.gov Download Document from Source Website File Size: 241,50 KB Share Document on Facebook