® SX4e GSM - RACOman.com

Optional PC Data Connection - continued
Serial Port Protocol
The DB-9 port operates at a fixed baud rate of 19,200. Note that this rate only
applies to the serial interface; the over-the-air data rate is independent. The format
is one start bit, 8 data bits, one stop bit, and no parity. The interface supports the
necessary V.24 (RS-232) signals.
AT Command Set
The following is a list of the commands from the AT Command Set defined in GSM
07.07 Digital Cellular Communications System (Phase 2); AT Command Set for
GSM Mobile Equipment (ME).
Supported AT Commands from Description
GSM 07.07
ATS3 Command Line Termination Character
“ S4 Response Formatting Character
“ S5 Command Line Editing Character
“ S6 Pause Before Blind Dialing
“ S7 Connection Completion Timeout
“ S8 Comma Dial Modifier Time
“ S10 Automatic Disconnect Delay
ATA Answer
ATD Dial
ATDP Dial-Select Pulse Dialing
ATDT Dial-Select Tone Dialing
ATDL Dial-Monitor Speaker Loudness
ATDI Dial-Request Identification Information
ATE Command Echo
ATH Hook Control
ATI Request Identification Information
ATO Return to On-line Data State
ATQ Result Code Suppression
ATV DCE Response Format
ATX Result Code Selection and Call Progress
Monitoring Control
ATZ Reset To Default Configuration
AT & F Set to Factory-Defined Configuration
AT & V Display Current Profile
AT & W Write Current Profile to Stored Profile
AT + CBST Select bearer service type
AT + CEER Extended Error Report
AT + CGMI Request Manufacturer Identification
AT + CGMM Request Model Identification
SX4e GSM 1900 17 USER MANUAL