KE LOGEM 928, Operation Manual

Page: 69 / 200

69
Operation Manual V.34 - Modems, Version 07/97
AT
Chapter 3
AT Commands
3.3 Telephone and Dialing Features
+++ Escape Sequence
The escape sequence consists of three characters defined in register S2
(default setting: = 2B (hex) = 43 (dec)) and is designed for switching from
transparent to command mode. The timeout before and after typing of
the escape sequence is defined in register S12.
Successful switching to command mode is indicated with an OK report.
At error protected connections this process may last max. 2 seconds.
You may use any other code for the escape sequence that can be specified
in register S12.
The modems do not terminate any existing dialing connection. Operating
parameters may only be changed during command mode, you have to
switch back then to transparent mode using the command ATO.
An existing connection may be terminated with the command ATH.
In direct mode a connection can be terminated by switching the the line
S1 (DTR). The S1 option (AT&D(n)) direct mode applications should be
set to the values 2 or 3.
ATA Answer
The ATA command is designed for manual acception of an incoming call.
The automatical call acception is deactivated if register S20 (count of
rings) is set to 0. You can accept an incoming call by:
• lifting the receiver and typing the command ATA after recognizing
the dial tone
• or typing the command ATA at an incoming call (ringing).
As an alternative a call can be accepted with the command ATS0=1
(activated automatical call acception).
ATD/Kurzname Dial Up with Short Name
The modem dials the dial character sequence xxx that is registered in the
number storage.
Example: AT&Z5=0511 xxx / ke-e (CR)
ATD/ke-e (CR)
The modem dials the telephone number 0511 xxx.