Tele-Communication (Telecom) Terms Glossary and Dictionary
TAB: Telephone Answering Bureau
Telephone Answering Bureau (TAB), also called Telephone Answering Service, is a supplementary feature of telephone services whereby incoming calls on central office, Centrex Service, Inward Wide Area Telecommunications Service, Airport Telephone Service, and Administrative Terminal Lines may be answered at a common point through the use of answering lines and equipment. The service is available only where selective ringing is used. Various Telephone Answering Services are provided based on equipment, line configuration, and types of equipment used.