AT Commands Modem Terminated
149
5.2.1 Commands
ATA
Answer Incoming Call Command
ATH
Hook Control
ATD
Dial Command
5.2 Ensemble C3: Call Control
Description:
Answers and initiates a connection to an incoming call.
Execution command:
ATA
Possible responses:
CONNECT
CONNECT <text>
<text>
Description
28800
Connected with data bit rate of 28800 bits/s (HSCSD)
19200
Connected with data bit rate of 19200 bits/s (HSCSD)
14400
Connected with data bit rate of 14400 bits/s (HSCSD)
9600
Connected with data bit rate of 9600 bits/s
4800
Connected with data bit rate of 4800 bits/s
2400
Connected with data bit rate of 2400 bits/s
NO CARRIER
The mobile phone is not registered.
ERROR
If ATA is unsuccessfully executed by the phone.
Description:
Terminates a connection.
Execution command:
ATH
Description:
Initiates a phone connection, which may be data, facsimile (+FCLASS> 0), or voice
(phone number terminated by semicolon). The phone number used to establish the
connection will consist of digits and modifiers, or a stored number specification.
Execution command:
ATD
[<dial_string>][;] Dial the phone number specified in the <dial_string>
parameter.
ATD>ME
<l>[;] Dial the phone number stored in the mobile phone located by the
index<l>.
ATD>SIM
<l>[;] Dial the phone number stored in the SIM card located by the index
<l>.
ATD>LD
<l>[;] Dial the number stored in position <l> in the Last Dialled Number
list on the SIM card. The most recently dialled number is assumed to have <l>=”1”.
ATDL
Redial the last dialled phone number.