Telecommunications

HOW TO – Wireless Networking in the Developing World

CoverFree PDF download “The massive popularity of wireless networking has caused equipment costs to continually plummet, while equipment capabilities continue to increase. By applying this technology in areas that are badly in need of critical communications infrastructure, more people can be brought online than ever before, in less time, for very little cost. We hope to not only convince you that this is possible, but also show how we have made such networks work, and to give you the information and tools you need to start a network project in your local community.” – [via] Link.

Phoning It In From ETel – Radio Handi Makes Its Debut

Phoning It In From ETel – Radio Handi Makes Its Debut

Letterbox2Brian McConnell on the Etel blog writes “Radio Handi enables people to create voice communities around any subject, place of interest or peer group, and to telecast live audio from MP3 feeds or conference phones. You can create a message board and party line for your club, for people who share an interest, or for your friends. With it, you can create an open party line that people can dial into from all over the world (30+ countries and 1 VoIP network to start with, much more to come). It’s also a great platform for ad hoc broadcasting. Just hook a microphone up to a Mac running Gizmo, and you can beam a live audio feed into a conference room that people can then dial into from all over the world (watch for a series of how-tos on ad hoc telecasting and other topics later this week).” [via] Link.

DIY Cellphone door opener

DIY Cellphone door opener

AutoitZerocool60544 in the AutoIT forums writes about a PC control project using a browser or cell phone “I use lego mindstorms’ motors, they don’t a lot of torque but I geared them down to be a little slower but stronger. The water bottles are the counter weights so their is always tension on the line. There are two motors on either side. (one near the closed position and one near the open position).” [via] Link.

“Call out” with Google Talk with the JabPhone

“Call out” with Google Talk with the JabPhone

JabphoneI’m going to try and get to ETel to check out this new JabPhone. Nat writes – “The Poly9 hackers who were at Where 2.0 in 2005, showed up at Emerging Telephony today with Jabphone, a service built on libjingle, Jabber, and Asterisk that lets you call out to regular telephone numbers from Google Talk. This is the power of open standards and open source, folks–they’ve been able to add the Skype Out feature to Google Talk without any assistance from Google.” [via] Link.

VOIP Phreaking…

VOIP Phreaking…

Event-565-128X128Intro to SIP hacking slides from the 22nd Chaos Communication Congress “Within the last year VoIP devices and applications flooded the market. SIP (Session Initiation Protocol) became the industry standard although it’s still under constant development. VoIP networks converge with the PSTN and thus offer ways and means for new (and old) attacks. The talk gives a brief introduction on how various components in the VoIP universe interact. The main part deals with implementation problems within SIP in both end user as well as ISP site devices and applications.” [via] Link.

DIY Bluetooth Retro Cellphone Handset

DIY Bluetooth Retro Cellphone Handset

Bt Retro01Chris writes “After reading this article about how to make a DIY Retro Cellphone Handset, I just had to post an article about how I made my Bluetooth Handset…surprisingly there is no how-to to do this (AFAIK). Although it’s very simple. Here is what you need: An old telephone or just the handset. I used an old telephone form former East Germany (GDR/DDR) called “Apart 2001″, produced in the VEB Fernmeldewerk Nordhausen/RFT in the year 1990.” Link.

Wake up calls for phones?

Wake up calls for phones?

CellphoneSean was looking for a service that would automatically call his phone with a text to speech message at a specified time “I would like to be able to program my computer to call my cell phone or a regular phone with text to voice messages–eg reminders, important appointments or wake up calls and for pranksters…The catch is that the other person should not require the same software to receive the call. Anybody know of any software that does this univocally?” I found a web service that does this (some free and some fee) here. I usually use my built in alarm clock on my phone, but it doesn’t of course talk to me or call anyone else.