At Astricon 2005 in Anaheim, CA I (Kristian Kielhofner) introduced the world's smallest VoIP enabled PBX. Here are the facts:

• Gumstix 400xm - 16mb flash, 64mb RAM, 400mhz xscale
• Root filesytem (with Asterisk) as low as 7mb with fun tools - 11mb
• uclibc, busybox, stripping
• Impressive performance (unless floating point codecs/features are used)
• Includes bluetooth support for the Gumstix -bt

The 11mb image includes everything needed to make a router, Asterisk, etc. server.


For more, make sure to check AstLinux