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Appendix E - MMH2834 Modem S-Registers
Appendix E - MMH2834 Modem S-Registers
Introduction
This section describes the MMH2834 memory locations called S-registers, where certain
MMH2834 modem configurations are stored. Each S-register is assigned a number (S0, S1, S2,
etc.). Use the S command to read and/or change the value stored in an S-register (ATSr? to read
and ATSr= to change S-register values).
S0
Number of Rings Until Modem Answers
Unit: 1 count
Range: 0–255
Default: 1
Description: S0 defines the number of rings the modem waits before answering an incoming
call. The default value is one ring, which means that the modem answers the call immediately
after the first ring. The maximum number of rings that can be configured is 255. Setting the value
to zero (0) disables auto-answer completely.
S6
Wait Time for Dial Tone
Unit: 1 second
Range: 2–255, 4–255**, 4–7***
Default: 2, 4**,4***
Description: S6 sets the time the modem waits after the RETURN key is pressed before
executing a dial command. The default setting is two seconds (Decimal 2).
S8
Pause Time for Comma
Unit: 1 second
Range: 0–255, 4–255**, 4–7***
Default: 2, 4**, 4***
Description: S8 sets the length of the pause caused by a comma in a dialing command. The
default setting is two seconds (Decimal 2) or four seconds, where each unit is one second. S8
may be set for up to 255 seconds.
S8 also sets the time the modem waits before retrying a call after detecting a busy signal. Some
computer systems need more than two seconds to reset (in which case you should increase the
value of S8).