Question 4/XVII - Modems for the transmission of data and other digital
signals
on four-wire telephone-type leased circuits
(Continuation of Question 4/XVII, 1985-1988; revised title and wording)

1. Study of modems for signalling rates above 14400 bit/s.

2. Study of points arising from the implementation of existing V-Series
modems for use on four-wire leased telephone-type circuits.