direct distance dialing
noun
a telephone network service feature enabling customers to direct-dial their long-distance calls.
Words nearby direct distance dialing
direct current,
direct debit,
direct deposit,
direct diplopia,
direct discourse,
direct distance dialing,
direct dye,
direct evidence,
direct examination,
direct flap,
direct fracture
British Dictionary definitions for direct distance dialing
direct distance dialing
noun
US and Canadian
a service by which telephone subscribers can obtain long-distance calls by dialling direct without the aid of an operator
British equivalent: subscriber trunk dialling