Best Data Smart One 56FW92, Руководство пользователя

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SMART ONE V.92 MODEM 31
Problem: The modem speaker volume is too low or too high.
Solution: If the software allows you to control the vo lume, make sure the speaker is
enabled and set to a comfortable volume. If the software does not have speaker settings,
add one of the
AT commands listed below to the initialization string:
L1 for low volume
L2 for medium volume
L3 for highest volume
For example, if you want the volume low and the software uses the initialization string
AT &F , change it to AT &F L1 .Dial Troubleshooting
Problem: The modem does not automatically dial a call when you send a Dial
command.
Solution: Make sure the modem speaker is turned on in your software so that you can
hear dialing sounds. Also make sure that the phone line is plugged in. Make sure that
you are dialing a valid phone number, including any required dial prefixes. If you are
using tone dialing on a line that requires pulse dialing, the line may not be able to accept
tone-dialed calls. Select Pulse dialing in your software or make sure software dialing
prefix is
ATDP (for pulse dialing). Make sure your communications software and
modem are configured for the same COM port. Make sure your modem has hung up from
the previous call. Select
Hang Up in your software; or type ATH in terminal mode.
Problem : The modem can connect to some modems, but not to others.
Solution: If a remote modem does not respond because of the extended negotiation
process, you may have to disable part or all of the negotiation process. In the following
table, “protocol” means error correction and data compression. Note that the first two
lines in the table are likely to be the most valuable.
Note 1: In the command strings shown in the table that follows, the character after N is
zero, not the le tter “O.”
To force a different
communication speeds…
Use these commands
Set to factory default setting AT &F
Connect at 56000 bps (V.90) AT +MS=V90
Connect at 33600 bps (V.34) AT +MS=V34
Connect at 14400 bps (V.32bis) AT +MS=V32B
Connect at 9600 bps (V.32) AT +MS=V32
Note 2: You may find it helpful to include +MR=2 in your initialization string. This
enables the responses of CARRIER (telephone line speed) and PROTOCOL , as well as
the CONNECT messages.
Note 3: Some software allows these commands to be added to the list of dial prefixes.
There are other configurations that can be forced as well. If you need to select a particular
configuration, use the AT command strings shown below. You can always return to the
modem’s default configuration by typing
AT &F and pressing the Enter key. Remember
that if you do this, the modem will not have received the command in your software’s
initialization string.