ˌcall ˈwaiting BrE AmE noun [uncountable]
a telephone service that allows you to receive another call when you are already talking on the telephone, without ending the first call
ˌcall ˈwaiting BrE AmE noun [uncountable]
a telephone service that allows you to receive another call when you are already talking on the telephone, without ending the first call
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012