Specifications

TC35i AT Command Set
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TC35i_ATC_V01.05 Page 17 of 278 04.08.2003
2 Standard V.25ter AT Commands
These AT Commands are related to ITU-T (International Telecommunication Union, Telecommunica-
tion sector) V.25ter document.
TC35i 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 Chapter 2.47) A/ (and a/) cannot be used.
2.2 +++ Switch from data mode to command mode
Execute command
+++
Response
This command is only available during a data call. 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 command mode to data mode: Enter ATO as described in Chapter
2.17.