SIM5300E AT Command Manual V1.02
2. AT Commands According to V.25TER
These AT Commands are designed according to the ITU-T (International Telecommunication Union,
Telecommunication sector) V.25ter document.
2.1 Overview of ATC According to V.25TER
Command Description
A/ Re-issues the last command given
ATA Answer an incoming call
ATD Mobile originated call to dial a number
ATDL Redial last telephone number used
ATE Set command echo mode
ATH Disconnect existing connection
ATI Display product identification information
+++ Switch from data mode or ppp online mode to command mode
ATO Switch from command mode to data mode
ATQ Set result code presentation mode
ATS0 Set number of rings before automatically answering the call
ATS4 Set response formatting character
ATS7 Set number of seconds to wait for connection completion
ATV TA response format
ATX Set connect result code format and monitor call progress
ATZ Reset default configuration
AT&D Set DTR function mode
AT+GMI Request manufacturer identification
AT+GMM Request TA model identification
AT+GMR Request TA revision identification of software release
AT+GOI Request global object identification
AT+GSN Request TA serial number identification (IMEI)
AT+ICF Set TE-TA control character framing
AT+IFC Set TE-TA local data flow control
AT+IPR Set TE-TA fixed local rate
AT+HVOIC Disconnect Voice Call Only
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