[Asterisk-Users] Re: Ethernet Channel Bank idea

[Greg Boehnlein]

On Fri, 10 Dec 2004, nik martin wrote:

> news.gmane.org wrote:
> > Allied Telesyn VoIP Access Device
> > http://www.alliedtelesyn.co.uk/site/files/documents/datasheet/VP624FXS_euro.pdf 
> > 
> > 
> > This is a 24-port FXS 1u device, conveniently presented as a single 
> > RJ-21 TELCO connector.
> 
> yeah, but those are expensive as crap.  i was thinking about something 
> more competetive with a channel bank

You know, if someone had some time on their hands, was good at 
hardware/software hacking and had the will, the old Livingston/Lucent PM3 
platform would make an awesome 48 port IAX2 <-> PRI/T1 channel bank.

Basically, the PM3 has 2 T1 ports that can be configured for ISDN PRI. The 
core of the system runs on an AMD x86 CPU. The plug in Modem cards have 
Lucent DSP's on them (up to 50 in a box). Flash size is 4 megs, and RAM is 
usually around 4 megs. That is still quite a bit of horsepower, and the 
boxes are under $400 now.

The DSP's could be used for Codec Translation, if neccessary, or for echo 
cancellation.

And, we can get access to the original Lucent ComOS Source code.

Anyone game? :)

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