Siemens AT Command Set Cellular Engines Wireless Modules MC35 ユーザーズマニュアル

MC35_ATC_01_V04.00

Page 14 of 238

02.04.2002

These AT Commands are related to ITU-T (International Telecommunication Union, Telecommunica-
tion sector) V.25ter document.
MC35 supports the registers S0-S29. You can change S0,S3,S4,S5,S6,S7,S8,S10,S18 by using the
appropriate ATSn commands. All the other registers are read-only and for internal usage only!

Execute command

A/

Response

Repeats previous command line. Line does not need to end with terminating
character.

Parameter

Reference

V.25ter

Note

•  After beginning with the character “a“ or „A“, a second character “t“ ,”T“ or “/“

has to follow. In case of using a wrong second character, it is necessary to
start again with character “a“ or “A“.

•  If autobauding is active (see +IPR, pg. 38) A/ (and a/) cannot be used.

Execute command

+++

Response

This command is only available during a CSD call or a GPRS connection. The
+++

character sequence causes the TA to cancel the data flow over the AT in-

terface and switch to command mode. This allows you to enter AT commands
while maintaining the data connection to the remote device or, accordingly, the
GPRS connection.

To prevent the +++ escape sequence from being misinterpreted as data, it must
be preceded and followed by a pause of at least 1000 ms. The +++ characters
must be entered in quick succession, all within 1000 ms.

Reference

V.25ter

Note:

•  To return from command mode to data or PPP online mode: Enter ATO as de-

scribed in Chapter 2.17.