The Telephone Historical Centre offers visitors an intriguing glimpse at various telephones and tools created over time since their invention. Children will especially enjoy seeing how far technology has advanced since first telephone was first invented!
The museum features working Panel and Crossbar electromechanical central-office switches, a Step-by-Step Private Automatic Branch Exchange system and hundreds of pieces of telephone equipment.
The History of the Telephone
Today, making phone calls seems effortless – with just the push of a button you are connected with your mother in Philadelphia or best friend in New York. But it wasn’t always so straightforward.
Early telephones weren’t great at working over long distances, but nonetheless were an incredible invention that helped people in many ways. For example, it allowed for improved privacy by replacing unexpected visits from relatives or door-to-door salesmen with calls on the telephone instead.
Alexander Graham Bell is often credited as being the one to invent the telephone, but other scientists were also working on similar technologies at that time. There has been much debate regarding who actually invented it.
Early Telephones
Starting as a simple handset that contained both transmitter and receiver components, the phone allowed for users to communicate without an operator being involved.
Chimu culture of Peru invented string telephones using gourds and stretched hide; an original example can be seen at the Smithsonian.
In 1876, Bell developed and patented an electromagnetic telephone that allowed for mechanically conveyed sounds over long wires and also featured a system for vocalization that enabled one person to speak over it.
Antonio Meucci and Phillip Reis worked on similar devices; however, their designs weren’t feasible on a commercial scale.
The telephone revolutionized communication, opening up real-time dialogue among individuals. This breakthrough revolutionised business and society alike; in 1915 the first long distance call took place between President of Bell Telephone and Telegraph Company (now AT&T) and Sir Evelyn P Murray from British General Post Office.
Modern Telephones
Visitors of the Telephone Historical Centre will discover a cavernous space filled with more retro telecom technology than an early James Bond movie. Tour guides don’t hesitate to let visitors try out everything from metal cans on wires to crank phones and multiple large switching systems – and allow visitors to explore each piece freely.
The museum features an impressive collection of phones, including an exact replica of Alexander Graham Bell’s first phone which played “Mr. Watson, Come Here! I Need You!,” modern videophones and working step switch private automatic branch exchange. In addition, there is a modern cellular phone exhibit which showcases how mobile technology has advanced from its early roots up until present day smartphones.
George Tanner, who established the museum, started collecting Knox County telephone memorabilia as a hobby at his own home. Over time his collection expanded to include wooden wall phones from 1890’s, various rotary dial and push button phones as well as old switches.
Switching Equipment
A large part of our collection consists of electromechanical switches. Thanks to volunteers who regularly exercise them, most remain operational.
We house one of only two functioning Strowger single-line step by step switches in existence – another can be found at the Telephone Museum in Ellsworth, Maine). Designed before modern automatic systems could recognize callers’ prefixes and join them into conversations seamlessly, this switch was built before we used computer programs to simulate calls in order to keep our equipment fit for service.
Sarah Autumn, one of our volunteer specialists, spent months reassembling this intricate panel switch system which covers several corridors with equipment racks. Sarah described it not as broken but as an example of “graceful engineering woven into an extraordinarily complex device.” Once used by a rural exchange and connecting up to 200 telephones simultaneously in a community.
