"central office" - related articles and key terms

Related terms: pbx   dial   bits   wire   modem   loop   tivadar   bell   trunk   dialing   overlay   switch   copper   bell labs   switchboard   signaling   signal   telegraph   telephone   exchange   toronto   customer   ontario   modulation   area code   long distance   frequency   telephone network   telephone exchange   communication

Wikipedia sources: Telephone exchange   Iglesia ni Cristo   Caller ID   T-carrier   Teleprinter   Area codes 416 and 647   Trunked radio system   Area codes 905 and 289   History of the telephone   1900 Galveston hurricane   Asymmetric digital subscriber line

Context for words: central   office