Analog Telephone Information

Analog phones

Many VOIP systems (e.g. Asterisk) support ordinary analog telephones. This page is a collection of information about analog phone technology

Phone Circuits

• Discover Circuits – Telephone Excellent list of URLs to telephone-related circuits.
• Inside the Phone Wiring – explains how phones are wired internally — applies mostly to older analog phones.
• Phrack
• PSTN and POTS fundamentals Training, video/DVD courses, free online tutorials on telephony, digitization, related topics
• Techlib Telephone circuits
• Telephone circuits and projects
• Telephone circuits/projects

Door Phones

This is now on the page Asterisk phone door.

Rotary Dial to DTMF converters

• Addressed on separate page Dial Pulse to Touchtone DTMF Converters

Phone Tools and Equipment

• https://www.cordless4u.com/ – Cordless Telephone line transfer up to 100km
• http://www.sandman.com/ – Telecom tools and door phones, and more
• https://www.cordless4u.com/ – Long Range phones and Telecom tools

History

• Telephone Tribute extensive collection of historical and technical information on the telephone industry
• Telephones UK

Information

• epanorama Great collection of information on PSTN technology
• Phone systems – A comprehensive guide to phone systems
• PBXMechanic Excellent online collection of telephone manuals, PBX phone guides and PBX programming manuals for free download
• VoIP vs Landline