Land Line Telephony

Found a good "Land Line Telephony" link? Let Us Know!

Doing your own telephone wiring Note: this page describes the phone wiring conventions in the United States. I'm not familiar with the phone wiring conventions outside the U.S., so the information here may not apply in your country.

Field telephones are mobile telephones intended for military use, designed to withstand wartime conditions. They can draw power from their own battery, from a telephone exchange (via a central battery known as CB), or from an external power source. Some need no battery, being sound-powered telephones. Field telephones were first used in the First World War to direct troops. They replaced flag signals and the telegraph as an efficient means of communication. The first field telephones had a wind-up generator, used to power the telephone's ringer & batteries to send the call, and call the manually-operated telephone central. This technology was used from the 1910s to the 1960s. Later the ring signal has been made electronically operated by a pushbutton, or automatic as on domestic telephones. The manual systems are still widely used, and often compatible with the older equipment.

Cheap Field Telephone - Paul R. Jorgenson NSS 39382 FE: I recently purchased a desk telephone at a swap meet for $2 US. It is the type of phone that is used as an extension phone (no dialing capability) at hotels or businesses. It has a bell type ringer and a neon light that flashes when the line is ringing. I was hoping that it would be a suitable candidate for use as a surface phone on a field telephone network. My starting reference was the article by John Halleck, in SPELEONICS 12, on cave rescue telephones.

Sound-Powered Telephone Talkers Manual ~ The purpose of this manual is to provide a training reference for telephone talkers and a qualification procedure for those assigned to telephone talker duties.

Sound-Powered Telephone Talkers’Training Manual - NAVEDTRA 14232: This self-study course is organized into subject matter areas, each containing learning objectives to help you determine what you should learn along with text and illustrations to help you understand the information. The subject matter reflects day-to-day requirements and experiences of personnel in the rating or skill area. It also reflects guidance provided by Enlisted Community Managers (ECMs) and other senior personnel, technical references, instructions, etc., and either the occupational or naval standards, which are listed in the Manual of Navy Enlisted Manpower Personnel Classifications and Occupational Standards, NAVPERS 18068.

DSL Installation Tutorial - HomeTech Solutions

PhoneMan.com: This guy put alot of work in on this site and provides all this info for free! A donation may be in order...
Things to Check Before Calling Your Phone Company Repair Service | What do all the wire colors mean? | Add a Jack | Wire 2nd Line | Wire 3rd Line | Wire DSL | Wire Colors | Wiring Block Techniques and Tips | Safety Cautions | Color Codes | Network Interface (NID) | Jacks/Adapters | 2 Line Jacks | Repair Service | Cable Routing | Tools | DSL Splitter at NID | DSL Splitter at Star Hub | DSL Splitter at the Router | DSL Splitter and Alarm Systems | Why do wiring? | Why more lines? | Manufacturers and Vendor/Distributors for Jacks and Tools

Telecom Tidbits from Wil Dixon

National ISDN Council

Low Voltage Home Pre-Wire Guide This article is intended to present ideas, discuss experiences, and generally assist those building or remodeling a house, who plan on installing low voltage wiring for audio, video, home automation, phone, and data communications. It is based on the adventures of our family doing such wiring ourselves on a new home, but is hopefully usable by others contemplating similar wiring tasks. This article is not intended by any means to be an authoritative source on any topic discussed. Information contained here must be used with the understanding that the author is not liable for omissions, errors, or misunderstandings in any way. [Link Recovered 5/7/11]

Home Automation Index of useful links maintained by Dan Hoehnen (has telephone stuff too)

"Structured Wiring How-To" information by Bob Catanzarite (includes info on phone wiring).

The Antique Telephone Collectors Association & Telephone Collectors International

MILITARY TELEPHONES- EE-8 FIELD PHONE This is a surplus sales site, but they were good enough (and smart enough) to include an article on the operational aspects of the EE-8. See also: Wire Comm. Systems for a good components list. PDF Archive of schematics & wiring Diagram

TA-312 Field Phone The analog, 2-wire, battery operated TA-312/PT replaced and will interoperate with the World War II and Korean War EE-8 field phone. The rugged and reliable TA-312 was used from the 1950s through the 1980s before being superceded by the TA-838 analog field phone. TA-312's continue in use throughout the U.S. forces as well as many allied countries.

Military Phones a web page all about field phones. Not a ton of info on the entry page, but perhaps there is more if you dig a little.

Field telephone system - Patent 4847888

The TA-1088/PT Telephone is a neatly styled, lightweight, battery operated instrument which is suitable for connection to manual or automatic 2–wire field telephone system or central battery signaling exchanges. This highly flexible field telephone is extremely rugged and provides excellent battery life from easily replaceable standard “C” size cells.

SALOME SIGNAL DEPOT - A Division Of VTS INDUSTRIAL COMPANY - Old or Antique Telephone Repair, Military Telephone Repair & Repair Parts: Basically, we're here to keep your EE-8 or EE-91, and associated apparatus working as it did when it was current. Obviously, your handset has the most wear & tear, but we also have the ability to get your magneto and ringer back in shape. Take advantage of our nearly 40 years experience with older telephones and military field telephones & switchboards. Bear in mind that we were raised in the aftermath of the first Great Depression, and are therefore ready to deal with the current economic calamity by offering low prices on parts and labor.

German Field Telephone Equipment Reference - Feldfernsprecher 33 / Field Telephone 33: Description ~ The feldfernsprecher 33 (FF33) is the standard field telephone of the German military forces of WWII. It is a general purpose field telephone designed for wired communications. It was introduced in 1933 as a modern replacement for the previous WWI legacy field telephones the last of the series being the feldfernsprecher 26 (1926). The FF33 can also be connected to the Torn. Fu. D2 and Torn. Fu. Bl, and F series radio sets to act as a remote handset.

The Invention of the Telephone This site is an attempt to reconstruct, in fine-grained detail, the path taken by Alexander Graham Bell, with links to other inventors and ideas. Click on the buttons at the top of the page to begin to explore this growing resource, whose initial development was funded, in part, by a grant from the History and Philosophy of Science program of the National Science Foundation.

Early Work on Dial Telephone Systems by R.B. Hill - The following article by Bell Telephone Laboratories' Roger B. Hill was published in the January, 1953 Bell Laboratories Record. (Volume XXXI No. 1, January, 1953. P. 22 et. seq.) It has been reprinted with the kind permission of John E. Donovan, Editor, Bell Labs Technology.

A sound-powered telephone is a communication device that allows users to talk to each other with the use of a handset, similar to a conventional telephone, but without the use of external power. This technology has been used for at least six decades for both routine and emergency communication on ships to allow communication between key locations on a vessel even if power, including batteries, is no longer available. A sound-powered phone circuit can have two or more stations on the same circuit. The circuit is always live, thus a user simply begins speaking rather than dialing another station. Sound-powered telephones are not normally connected to a telephone exchange.

Submarine Electrical Systems - Chapter 16 COMMUNICATION AND ALARM SYSTEMS

The HowlCall Explosion Proof Sound Powered Phone A sound powered phone for areas where normal phones can't operate. Operation without external power supply and complex equipment, sound-powered telephony is ideal for communications whenever there is no power supply available, e.g. at blast furnaces, in tunneling or mining, or offshore on oil rigs or high-sea steamers, and provides a direct connection to the switchboard, base, bridge or colleagues on the surface. Or wherever.

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