| 383441 | CMX639 | Consumer / Commercial CVSD Digital Voice CODEC | MXCOM |
| 383442 | CMX639D4 | CVSD digital voice codec | CONSUMER MICROCIRCUITS LIMITED |
| 383443 | CMX639D4 | Consumer/commercial CVSD digital voice CODEC | MXCOM |
| 383444 | CMX639E2 | CVSD digital voice codec | CONSUMER MICROCIRCUITS LIMITED |
| 383445 | CMX639E2 | Consumer/commercial CVSD digital voice CODEC | MXCOM |
| 383446 | CMX639P6 | CVSD digital voice codec | CONSUMER MICROCIRCUITS LIMITED |
| 383447 | CMX639P6 | Consumer/commercial CVSD digital voice CODEC | MXCOM |
| 383448 | CMX641A | DUAL SPM/SECURITY DETECTOR/GENERATOR | CML |
| 383449 | CMX641A | Dual SPM/Security Detector/Generator | CONSUMER MICROCIRCUITS LIMITED |
| 383450 | CMX641A | Dual SPM/Security Detector/Generator | CONSUMER MICROCIRCUITS LIMITED |
| 383451 | CMX641AD2 | Dual SMP/security detector/generator. | CONSUMER MICROCIRCUITS LIMITED |
| 383452 | CMX641AP4 | Dual SMP/security detector/generator. | CONSUMER MICROCIRCUITS LIMITED |
| 383453 | CMX644A | V.22 and Bell 212A Modem | CML |
| 383454 | CMX644A | V22 and Bell 212A Modem with DTMF Generator | CONSUMER MICROCIRCUITS LIMITED |
| 383455 | CMX644A | Bell 212A and V.22 Modem with Call Progress and DTMF | MXCOM |
| 383456 | CMX644AD2 | Bell 212A and V.22 modem with call progress and DTMF | MXCOM |
| 383457 | CMX644AD5 | Bell 212A and V.22 modem with call progress and DTMF | MXCOM |
| 383458 | CMX644AP4 | Bell 212A and V.22 modem with call progress and DTMF | MXCOM |
| 383459 | CMX649 | ADM Codec | CML |
|
| 383460 | CMX649D3 | ADM codec. | CONSUMER MICROCIRCUITS LIMITED |
| 383461 | CMX649E3 | ADM codec. | CONSUMER MICROCIRCUITS LIMITED |
| 383462 | CMX654 | V23 Transmit Modulator | CML |
| 383463 | CMX654 | V23 Transmit Modulator | CONSUMER MICROCIRCUITS LIMITED |
| 383464 | CMX654 | V.23 TRANSMIT MODULATOR | MXCOM |
| 383465 | CMX654D4 | V.23 transmit modulator | MXCOM |
| 383466 | CMX654P3 | V.23 transmit modulator | MXCOM |
| 383467 | CMX661 | PAIR GAIN DUAL SPM DETECTOR | CML |
| 383468 | CMX661 | Dual SPM Decoder for Pair Gain Applications | CONSUMER MICROCIRCUITS LIMITED |
| 383469 | CMX661 | Pair-Gain Dual SPM Detector | CONSUMER MICROCIRCUITS LIMITED |
| 383470 | CMX661D4 | Pair gain dual SPM detector. | CONSUMER MICROCIRCUITS LIMITED |
| 383471 | CMX661P3 | Pair gain dual SPM detector. | CONSUMER MICROCIRCUITS LIMITED |
| 383472 | CMX673 | Call Progress Tone Detector | CML |
| 383473 | CMX673 | CMX673 Suggested Applications | CONSUMER MICROCIRCUITS LIMITED |
| 383474 | CMX673 | Call Progress Tone Detector with Stutter Dialtone and VMWI capability | CONSUMER MICROCIRCUITS LIMITED |
| 383475 | CMX673 | Call Progress Tone Detector | MXCOM |
| 383476 | CMX673D4 | Call progress tone detector | CONSUMER MICROCIRCUITS LIMITED |
| 383477 | CMX673D4 | Call progress tone decoder | MXCOM |
| 383478 | CMX673E3 | Call progress tone detector | CONSUMER MICROCIRCUITS LIMITED |
| 383479 | CMX673E3 | Call progress tone decoder | MXCOM |
| 383480 | CMX673P1 | Call progress tone detector | CONSUMER MICROCIRCUITS LIMITED |
