User's Manual

5634BIF User’s Manual
26
Modem
Commands
Description
&Zn=Ax Stored up four telephone numbers in nonvolatile memory
n is the memory location (0-3)
A is T(for touch tone) or P (for pulse)
x is the phone number to be stored
To dial a stored number, use the ATDS=n command
Example : AT &Z0=T 1 818 555 2121
stores in memory position 0 the telephone number
1 818 555 2121, which will be Touch Tone (T) dialed.
%Xn Select Mode
1 Set mode 1 (Remote) - DTE connects to external line
2 Set mode 2 (Share) - local fax connects to external line
3 Set mode 3 (Local) - DTE connects to local fax
Table 5-2. MNP/V.42/V.42bis commands
MNP/
V.42/V.42bis
Commands
Description
\An Maximum MNP block size
This command has no effect on Class 3 and lower operations limit
maximum block size to 64 characters. This is command is used to
transmit smaller blocks of data when communicating over poor quality
telephone lines to avoid re transmissions of data and improve
throughput
0 Maximum block size 64 characters
1 Maximum block size 128 characters (default)
2 Maximum block size 192 characters
3 Maximum block size 256 characters
\Bn Send break to remote system
Equivalent to pressing the Break key on a host keyboard. For standard
(non-MNP) or V.42 connections, type a number from 1 to 9 after this
command to indicate how long the modem is to provide the break
signal. The number will be multiplied by 100 milliseconds and the
break signal provided for that duration. Default is 0, which sends a
break of 300 milliseconds. Ref. “\Kn” on page 40, defines how your
modem treats breaks.
%Cn Enable/disable MNP Class 5 data compression
0 Disable data compression
1 Enable MNP 5 data compression
2 Enable V.42bis data compression
3 Enable both V.42bis and MNP 5 data compression. (default)
%En Line Quality Monitor and Auto-retrain or Fallback/Fall Forward
This command determines whether your modem retrains automatically
and resynchronizes the flow of data if it detect telephone-line problems
that could adversely affect data.
0 Disable auto-retrain
1 Enable line quality monitor and auto-retrain
2 Enable line quality monitor and fallback/ fall forward. (default)