End of an Era | BT Heritage
22:28
”THE TELEPHONE EXCHANGE” 1982 BRITISH TELECOMMUNICATIONS DOCUMENTARY MONDIAL HOUSE XD47854
19:26
The Post Office Tower of London | BT Heritage
20:20
The Dial Comes To Town
25:34
'Night Mail 2' Documentary - 1986.
22:38
My vintage Strowger Telephone Exchange Demonstrator
17:12
BT Educational Service - call routing from UK to Australia
8:26
AT&T Archives: The Step-By-Step Switch
14:36