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Short Take: AT&T to do trials of ADC telephony products

ADC Telecommunications said that AT&T's Broadband & Internet Services has begun field trials of its cable telephony product in Denver. ADC's technology lets residents with cable TV service to make telephone calls over the Internet.

ADC Telecommunications said that AT&T's Broadband & Internet Services has begun field trials of its cable telephony product in Denver. ADC's technology lets residents with cable TV service to make telephone calls over the Internet.