Zypcom Z34-PL, User Manual

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"Hn (V.42bis
Control)
Specifies whether the data in the LAPM frames are
compressed using V.42 bis data compression.
Compression can be negotiated to operate in one
direction or both.
C
OMMAND
D
ESCRIPTION
"H0 Disables V.42 bis.
"H1 Enables V.42 bis only when transmitting
data.
"H2 Enables V.42 bis only when receiving data.
"H3* Enables V.42 bis for both transmitting and
receiving data.
"On (V.42bis Word
Length)
This command sets the maximum number of characters
that can be compressed into one V.42bis word. The
default is 32 bytes. The range is 6 to 250 characters.
S-REGISTER
The L-Series modem has 30 status registers, commonly
referred to as S-registers, which can be used to control
specific modem functions. S-registers are memory
locations that hold values for various parameters. For
example, S-registers are counters, timers, and specific
ASCII characters used to configure and operate the
modem. S-registers impact the way a variety of modem
settings operate. S-registers control options that
determine the manner in which the modem dials, what
features and speeds the modem will negotiate with
remote modems, and how and when the call will
disconnect.