Combining At Commands On The Same Command Line; Entering Successive At Commands On Separate Lines; Table 3: Illegal Combinations Of At Commands - Siemens MC35 Command Set

AT Command Set

1.4.2 Combining AT commands on the same command line

You may enter several AT commands on the same line. This eliminates the need to type the "AT" or
"at" prefix before each command. Instead, it is only needed once at the beginning of the command
line. Use a semicolon as command delimiter.
The command line buffer accepts a maximum of 391 characters. If this number is exceeded none of
the commands will be executed and TA returns ERROR.
The table below lists the AT commands you cannot enter together with other commands on the same
line. Otherwise, the responses may not be in the expected order.

Table 3: Illegal combinations of AT commands

V.25ter commands
GSM 7.07 commands
GSM 7.05 commands (SMS)
Commands starting with AT&
AT+IPR
Note: When concatenating AT commands please keep in mind that the sequence of processing may
be different from the sequential order of command input. Therefore, if the consecutive order of
the issued commands is your concern, avoid concatenating commands on the same line.

1.4.3 Entering successive AT commands on separate lines

When you enter a series of AT commands on separate lines, leave a pause between the preceding
and the following command until OK appears. This avoids sending too many AT commands at a time
without waiting for a response for each.
MC35_ATC_01_V05.00
FAX commands, Prefix AT+F
With
Siemens commands, Prefix AT^S
With
--- To be used standalone
--- To be used standalone
--- To be used standalone
Page 16 of 256 15.07.2002