[Asterisk-Users] Quad T1 Card
Steve Underwood
steveu at coppice.org
Wed Jun 7 17:10:49 MST 2006
Andrew Kohlsmith wrote:
>On Wednesday 07 June 2006 11:19, Matt Florell wrote:
>
>
>>turned on and off as needed by it's firmware. The Digium card uses an
>>Oki chipset that has a smaller echo tail length and is hard-coded into
>>the firmware so you cannot change it.
>>
>>
>
>Actually Oki's just the fab. Oki is one of several manufacturers who will
>make you your custom silicon, if the quantities are right. We buy ASICs from
>an OEM for vector-control VFD products. The OEM has Oki fab and package the
>chip.
>
>
OKI produce a lot of telecoms chips of their own, and they also have a
foundry business. They do produce their own echo cancellers, as well as
other DSP functions for telecoms. What makes you think these are foundry
chips?
Steve
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