David writes in with his latest open source telephony project –
The IP04 is an IP-PBX that runs Asterisk on a Blackfin processor in a tiny embedded form factor. It has been designed by an international team of telephony/DSP hackers using the “open hardware” philosophy. The IP04 has now gone into production – one of the first “open hardware” real-world, products that I know of.
Building an embedded Asterisk PBX – Link.
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