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.
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