16 Pages, 766 KB, Original- CMX639D4
- Cml Microcircuits (usa) Inc.
- CVSD, CVSD CODEC, PDSO16
8 Pages, 182 KB, Original- CMX639D4T/R
- Cml Microcircuits
- CMX639D4T/R
12 Pages, 842 KB, Original- CMX639D4
- Mx-com, Inc.
- Consumer/commercial CVSD digital voice CODEC
