- CH1782A - Small 2400 Bps/V.22 Bis
- CH1782AFamily - Small 2400 Bps/V.22 Bis
- CH1786 - Low Speed Modem
- CH1786ET - Low Speed Modem
- CH1786ET/PD - Family of Ultra Small 2400 BPS Modems
- CH1786Family - Family of Ultra Small 2400 BPS Modems
- CH1786FX - Low Speed Modem
- CH1786FXNE - Low Speed Modem
- CH1786J - Low Speed Modem
- CH1786JET - Low Speed Modem
- CH1786LC - Family of Ultra Small 2400 BPS Modems
- CH1786LCNE - Low Speed Modem
- CH1786NE - Low Speed Modem
- CH1786NH - Low Speed Modem
- CH1794 - 14.4K BPS Speed
- CH1794ET - 33.6K BPS Speed
- CH1794ETBR - 14.4K BPS Speed
- CH1794TBR - 14.4K BPS Speed
- CH1799 - 33.6K BPS Speed
- CH1799ET - 33.6K BPS Speed
- CH1799ETBR - 33.6K BPS Speed
- CH1799LL - 33.6K BPS Speed
- CH1799TB - 33.6K BPS Speed
- CH1799TBR - 33.6K BPS Speed
- CH1804 - Line Detector Monitor
- CH1804A - Line Detector Monitor
- CH1809 - Line Detector Monitor
- CH1809A - Line Detector Monitor
- CH1817 - Family of Low Profile Daa Modules
- CH1817C - Family of Low Profile Daa Modules
- CH1817-D - Family of Low Profile Daa Modules
- CH1817-DM - Family of Low Profile Daa Modules
- CH1817L - Family of Low Profile Daa Modules
- CH1817-LM - Family of Low Profile Daa Modules
- CH2056 - 56K BPS Speed
- CH2056ET - 33.6K BPS Speed
- CH2056ETBR - 33.6K BPS Speed
- CH2056TBR - 56K BPS Speed
- CH2124 - Send and Retrieve Email (2400 Bps)
- CH2156 - Send Email Only (56K)
- CH2160 - Send & Retrieve Email (56K)
- CH2161E - Send & Retrieve Email (56K) External Modem With Case
