Blogroll for tag telecom
Asterisk - An open source PBX running on Linux
Trixbox - A easy to install and configure business class IP PBX system based on Asterisk (formerly Asterisk@home)
Spread Spectrum Scene - Information on CDMA based wireless
Introduction to data communication
GoogleTel (Telecom's Tsunami) - Ubiquisys (Femtocells) + Bandwidth (Dark Fiber and 700MHz Spectrum) + Grand Central (One Number ID)
Ribbit - A new kind of "phone company" that provide a platform to build and use the service the way user/developer like it.
Can Ribbit Finally Bring Web & Voice Together? (GigaOM)
SIP Express Router/Media Server - A SIP server suite with free IP Telephony service
OpenSER SIP Server
GNU Radio - A open source GSM BTS air interface program for UNIX
Long Term Evolution presentation