Mailing the story:
Experimenting with Asterisk using a $20 SIP phone
If you'd like to play with Asterisk and need a cheap SIP phone, the VanAccess IP0020 can be obtained on eBay for as little as $20. But with no included manual and a SIP registration bug in the firmware, this phone can be tricky to configure. This article reviews the IP0020 and shows how to get it working with Asterisk.