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***** WARNING:  Market-speak, Sales pitch *****

ZyXEL makes good, fast, and reliable modems.  Instead of using generic 
chipsets to produce modems, ZyXEL uses Texas Instrument Digital Signal
Processors (DSPs) in their modems.  This design allows new features and
bug fixes to be implemented in a simple manner.

It has a whole plethora of features:
        . ZyX 16.8, ZyX 19.2 kbps(on Plus models) data transmission speeds
        . V.32 (9.6 kbps), V.32bis (14.4 kbps) data transmission speeds
        . V.17 (14.4 kbps) fax transmission speeds
        . Automatic speed fall-back and fall-forward
        . V.42bis data compression
        . sending and receiving fascimiles
        . voice recording and playback
        . CallerID support
        . Distinctive Ring and Extended Distinctive Ring support
        . Remote configuration
        . Call-back security
        . etc, etc, etc.

***** End Warning *****

Reality:  ZyXEL makes a very good modem.  Bugs are fixed in a prompt manner.
Features are also added in a regular basis.

There are some deficiencies in the product.
        . The documentation is too technical at times, as well it has some
          English errors.  Currently it is being re-written in the form of
          both a user and a technical reference manual.  The new manual will
          hopefully solve this shortcoming.
        . Bugs!  (At least they are acknowledged!)

Some parts © 2009 Advameg, Inc.