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Standard v.25ter at commands, A/ repeat previous command line, Switch from data mode to command mode – Siemens MC35 User Manual

Page 13: 2 standard v.25ter at commands, 1 a/ repeat previous command line, 2 +++ switch from data mode to command mode

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AT Command Set

MC35_ATC_01_V03.02

Page 13 of 228

13.03.2002

2 Standard V.25ter AT Commands

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!

2.1 A/ Repeat previous command line

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. 37) A/ (and a/) cannot be used.

2.2 +++ Switch from data mode to command mode

Execute command

+++

Response

This command is only available during data calls. The +++ character sequence
causes the TA to cancel the data flow over the AT interface and switch to com-
mand mode. This allows you to enter AT commands while maintaining the data
connection to the remote device.

OK

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 on-line command mode to on-line data mode: Enter ATO as de-

scribed in Chapter 2.17.