PRX 205 - The World's Finest Reedswitch

Channel Islands Telegraph

Cable Radio and Television Relay in Jersey 

The Telecommunications Heritage Group

Light Straw

History of the Atlantic Cable

Museum voor Communicatie

ACTW Telefoon Museum

Ekco Works Malmesbury Memories

Peter Walker's Telephone Pages

Guernsey Telephone Museum

The Strowger Pages

The All 3000 type Relay PABX

Fundamentals of GPO Line Signalling

History of Telephone Kiosks in Jersey