From Longman Dictionary of Contemporary Englishtelephone bankingˌtelephone ˈbanking noun [uncountable] a service provided by banks so that people can find out information about their bank account, pay bills etc by telephone rather than by going to a bankFrom Longman Business Dictionarytelephone bankingˌtelephone ˈbankingBANKING when customers have an arrangement with a bank to be able to find out by telephone how much money they have in their account, ask for payments to be made etc → banking