Using the Internal Modem 7-9
Writer: Carey Gregg Saved by: Rebecca Wiggins Saved date: 02/06/98 11:07 AM
Part Number: 314932-001 File name: Ch07.doc
Setting S Register Default Values
The S register default values function reliably under most
circumstances. However, these values may be modified if
necessary.
For example, it may take an especially long time to get a dial tone
in your office, so you may choose to reset S7 for a longer wait
time.
Modifying an S Register
You can modify or change the value of an S register from
command mode (terminal mode) or from a standard data or fax
communication application. For example:
■
Type
ATS11 = 70
then press
Enter
.
This sets S11 to a value of 70.
■
If you then enter
AT = 95
,
it resets S11 to a value of 95, since
the modem remembered that S11 was the last register
referenced.
■
If you enter an
S
=
command with no parameter (value), the
register number defaults to zero and the modem changes the
value of
S0
. Therefore, the following commands are
equivalent:
ATS0
=
3
and
ATS = 3
.
Reading an S Register
To read the contents of a given S register in the terminal mode
(command mode), type
ATSn?
(where n is the number of the
register) then press
Enter
.
When modifying a register, the modem also remembers the
location of the last inquiry. For example, the following sequence
of commands display the contents of the S11 register.
ATS11?
This command displays the value of S11.
AT?
This command also displays the value of S11.
When you use an S? with no value, the register number defaults to
zero and the modem responds with the value of S0 (for
example
ATS
?
).