Product data

USRobotics
Command Reference
Syntax and Procedures - 6
If the "=" is used, the new value to be stored in the S-parameter is specified in
decimal following the "=". If no value is given (i.e., the end of the command line
occurs or the next command follows immediately), the S-parameter specified may
be set to 0, or an ERROR result code issued and the stored value left unchanged.
The ranges of acceptable values are given in the description of each S-parameter.
If the "?" is used, the modem transmits a single line of information text to the DTE.
The text portion of this information text consists of exactly three characters, giving
the value of the S-parameter in decimal, with leading zeroes included.
Extended Syntax Commands
Command Naming Rules
Both actions and parameters have names, which are used in the related
commands. Names always begin with the character "+". Following the "+", from
one to 16 additional characters appear in the command name. These characters
will be selected from the following set:
A through Z (IA5 4/1 through 5/10)
0 through 9 (IA5 3/0 through 3/9)
! (IA5 2/1)
% (IA5 2/5)
- (IA5 2/13)
. (IA5 2/14)
/ (IA5 2/15)
: (IA5 3/10)
_ (IA5 5/15)
The first character following the "+" must be an alphabetic character in the range
of "A" through "Z". This first character generally implies the application in which a
command is used (e.g., F for Fax or V for voice).
The modem considers lower-case characters to be the same as their upper-case
equivalents.
Values
When subparameters are associated with the execution of an action, or when
setting a parameter, the command may include specification of values. This is
indicated by the appearance of <value> in the descriptions below.