telephonyintelligent network services beyond basic voice calling, such as caller ID (automatic number identification (ANI)), caller number blocking, automated call return, call blocking or screening. Different IXCs offer various services. Late in the 20th century the term was simplified to - LASS - .
Telephony
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Telephony - Service in America - Find Mobiles and Phone Companies
Telephony - Service in America - Find Mobiles and Phone Companies
Telephony America
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