
COMSPHERE 3800 Series Modems ± Model 3830
Table
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Model 3830 AT Commands
&Fn Select Factory Default Configuration Options (cont'd)
If ETC is installed and your modem is attached to a cellular telephone, use the &F5 command to configure the modem for cellular communications. &F5 sets the following configuration options:
AT Command | ||
Option | Value |
|
Maximum Frame Size | \A4 | |
Error Control Mode | \N4 | |
S0=3 | ||
No Answer Timeout | S7=120 | |
No Carrier Disconnect | S10=100 | |
V.32bis Train | S43=1 | |
V.32bis Autorate | S76=3 | |
V.42 ARQ Window Size | S89=9 | |
Cellular Enhancements | S91=1 |
If ETC is installed, and your modem is attached to a normal dial telephone line but sometimes communicates with a modem that is attached to a cellular phone, use the &F6 command. &F6 (Cellular(PSTN)) sets the following configuration options:
AT Command | ||
Option | Value |
|
Transmit Level | &I100 | |
Error Control Mode | \N4 | |
No Answer Timeout | S7=120 | |
No Carrier Disconnec | S10=100 | |
V.32bis Train | S43=1 | |
V.42 ARQ Window Size | S89=9 | |
Cellular Enhancements | S91=1 |
&Gn V.22bis Guard Tone
Determines whether the V.22bis guard tone is disabled, set to 550 Hz, or set to 1800 Hz.
&G0 Disable.
&G1 550 Hz.
&G2 1800 Hz.
August 1998 |