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Table B-1. AT Command and S-Register List (22 of 34)
AT
Command/
Description
S-Register
&F
Select Factory Default and Enhanced Throughput
n
Cellular
&F0
&F5
&F6
&G
V.22 bis and V.22 Guard Tone
n
Determines the nature of the V.22 Guard Tone.
&G0 Disable
&G1 550 Hz
&G2 1800 Hz
&I
Transmit Level
n
Determines transmit level for data over dial lines.
Values can range from –10 dBm to –25 dBm.
There is no default setting for &I; the factory
setting for Transmit Level is Permissive mode
(&J).
Cellular setting (&F6) is –18 dBm.
(ETC
) Configuration Options
Loads factory configuration options into
Active memory.
Loads the ETC protocol. Use this setting
when the DataPort 2001 is attached
directly to a cellular telephone. An RJ11
adapter (which can be purchased from
your cellular telephone supplier) is required
for this configuration.
Loads the ETC protocol. Use this setting
when the DataPort 2001 is connected
directly to a normal telephone line, but
communicates with a remote modem that
is attached to a cellular telephone.
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