3.2.3.12. AT&V3 - Extended S Registers Display 144
3.2.4. DTE - Modem Interface Control 145
3.2.4.1. ATE - Command Echo 145
3.2.4.2. ATQ - Quiet Result Codes 146
3.2.4.3. ATV - Response Format 148
3.2.4.4. ATI - Identification Information 150
3.2.4.5. AT&C - Data Carrier Detect (DCD) Control 151
3.2.4.6. AT&D - Data Terminal Ready (DTR) Control 152
3.2.4.7. AT&K - Flow Control 153
3.2.4.8. AT&S - Data Set Ready (DSR) Control 154
3.2.4.9. AT+IPR - UART DCE Interface Data Rate Speed 155
3.2.4.10. AT#DTR - Data Terminal Ready (DTR) flow control 157
3.2.4.11. AT+IFC - DTE-Modem Local Flow Control 160
3.2.4.12. AT+ICF - DTE-Modem Character Framing 162
3.2.4.13. AT#SKIPESC - Skip Escape Sequence 164
3.2.4.14. AT#SETHEXSTR - Enable Input of Hex Coded Characters in String Constants
166
3.2.4.15. AT#E2ESC - Escape Sequence Guard Time 168
3.2.4.16. ATX - Extended Result Codes 169
3.2.5. Call (Voice and Data) Control 171
3.2.5.1. ATD - Dialup Connection 171
3.2.5.2. ATA - Answer Incoming call 175
3.2.5.3. ATH - Hang Up/Disconnect the Current Call 176
3.2.5.4. ATO - Return to ON-Line Mode 177
3.2.5.5. AT#ATDCECHECK - ATD CE Level Check 178
3.2.5.6. AT#DIALMODE - Set Dialing Mode 180
3.2.6. Modulation & Compression Control 182
3.2.6.1. AT%E - Line Quality and Auto Retrain 182
Network 183
3.3.1. AT+CNUM - Subscriber Number 183
3.3.2. AT+COPN - Read Operator Names 185
3.3.3. AT+CREG - Network Registration Status 187