OKI site.
VOIP telephone chipsets

        http://www2.okisemi.com/site/applications/VoIPPhone.html

VOIP Codec

    Intro

        http://www2.okisemi.com/site/productscatalog/telecomics/linearcodecs/Intro-9995.html

    Datasheet (1.2 MB pdf)(64 pin QFP)

A-law and ulaw CODECs, including (surprise) some in DIP.

        http://www2.okisemi.com/site/productscatalog/telecomics/pcmaulawcodecs/TelecomTables-4.html



        RM

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