WCDMA Module
5
1
Definitions and abbreviations
1.1 Command line
See figure 2 for general structure of a command line. Standardized basic commands are found only in
V.250 [14].
GSM/UMTS commands use syntax rules of extended commands. Every extended command has a
test command
(trailing =?) to test the existence of the command and to give information about the type of its
subparameters.
Parameter type commands also have a read command (trailing ?) to check the current values of
subparameters. Action
type commands do not store the values of any of their possible subparameters, and therefore do not
have a read
command.
If verbose responses are enabled with command V1 and all commands in a command line has been
performed
successfully, result code <CR><LF>OK<CR><LF> is sent from the TA to the TE. If numeric
responses are enabled
with command V0, result code 0<CR> is sent instead.
If verbose responses are enabled with command V1 and subparameter values of a command are not
accepted by the TA
(or command itself is invalid, or command cannot be performed for some reason), result code
<CR><LF>ERROR<CR><LF> is sent to the TE and no subsequent commands in the command line
are processed. If
numeric responses are enabled with command V0, result code 4<CR> is sent instead. ERROR (or 4)
response may be
replaced by +CME ERROR: <err> (refer clause 9) when command was not processed due to an error
related to MT
operation.
1.2 Information responses and result codes
The TA response for the example command line of figure 2 could be as shown in figure 3. Here,
verbose response
format is enabled with command V1. If numeric format V0 would have been used, <CR><LF> headers
