Synxcom SM9234D, User Manual

Page: 122 / 216

AT Commands
Page 122
S-Parameters
The S-Parameters are summarized in Table A-14 along with their default values;
registers denoted with an '*' may be stored in one of the two user profiles by
entering the &W command. One of these profiles may be loaded at any time by
using the Z command. Registers or register fields quoted as “reserved” are
reserved for current or future use by the firmware, or are permanently overridden
by PTT limitations. For the latter, control of the equivalent functionality is
available with ConfigurACE Call Progress and Blacklisting options.
All bit-mapped registers are read-only. The appropriate AT command which
controls the relevant bits in the S-Parameter should be used to change the value.
S - Read/Write S-Parameter
The modem selects an S-Parameter, performs an S-Parameter read or write
function, or reports the value of an S-Parameter.
N Establishes S-Parameter n as the last register accessed.
n=v Sets S-Parameter n to the value v.
n? Reports the value of S-Parameter n.
The parameter n can be omitted, in which case the last S-Parameter accessed will
be assumed. The S can be omitted for AT= and AT?, in which case the last S-
Parameter accessed will be assumed. For example:
ATS7 establishes S7 as the last accessed register.
AT=40 sets the contents of the last register accessed to 40.
ATS=20 sets the contents of the last register accessed to 20.
If the number "n" is outside the range of the S-Parameters available, the modem
will return the ERROR message. If the value “v” is outside the range permitted
for a given S-Parameter, the modem will return the ERROR message. Input and
output are always in decimal format. Note that some S-Parameters are read-only.
In some cases, writing to the S-Parameter will appear to be accepted but the value
will not actually be written.
Due to country restrictions, some commands will be accepted, but the value may
be limited and replaced by a maximum or minimum value.
Minimum, maximum, and default values for S-Parameters may be altered with ConfigurACE.