Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 vii Ver. 1.00 – 10/29/2008
4.3.7. $MICES Echo suppression Control ...................................................... 221
4.3.8. $MICAEC Echo cancellation ................................................................ 223
4.4. INPUT/OUTPUT COMMANDS ............................................................................. 225
4.4.1. $IOCFG GPIO Configuration .............................................................. 225
4.4.2. $IOBLKS GPIO Block Configuration ................................................... 227
4.4.3. $IOGP(x) GPIO Bit Control ................................................................. 230
4.4.4. $IOGPA GPIO Byte Control ................................................................ 232
4.4.5. $IOPULEN GPIO Pullup Enable ......................................................... 234
4.4.6. $IOPULUP GPIO Pullup Settings ........................................................ 236
4.4.7. $IOADC1 Read Analog to Digital Converter ......................................... 238
4.5. UDP API COMMANDS ..................................................................................... 239
4.5.1. $UDPAPI Modem API Address ............................................................ 239
4.5.2. $APIPWD API Password ...................................................................... 240
4.5.3. $APIOPT Enable API Optional Header Fields ................................... 241
4.6. TCP API COMMANDS ...................................................................................... 244
4.6.1. $TCPAPI TCP API Control .................................................................. 244
4.6.2. $TCPSRC TCP API Source Ports ......................................................... 246
4.6.3. $TCPRETRYTO TCP API Retry Timeout .............................................. 247
4.6.4. $TCPIDLETO TCP API Idle Timeout ................................................... 248
4.6.5. $TCPSTATS TCP API Statistics ............................................................ 249
4.6.6. $TCPRESTRT TCP API Restart ............................................................ 251
4.7. DYNAMIC IP/WAKEUP-KEEP ALIVE ................................................................ 252
4.7.1. $WAKEUP Modem to Server Wakeup/Keep ........................................ 252
4.7.2. $ACKTM Acknowledgment Message Period ........................................ 254
4.7.3. $MDMID Modem ID............................................................................. 257
4.7.4. $FRIEND Modem Friends .................................................................... 258
4.8. PAD COMMANDS............................................................................................. 261
4.8.1. $PADDST PAD Destination IP/Port .................................................... 261
4.8.2. $PADSRC PAD Source Port ................................................................. 263
4.8.3. $ACTIVE TCP PAD State ..................................................................... 264
4.8.4. $PADBLK PAD Block Size ................................................................... 266
4.8.5. $PADBS PAD Backspace Character .................................................... 267
4.8.6. $PADFWD PAD Forward Character ................................................... 268
4.8.7. $PADTO PAD Timeout Value .............................................................. 269
4.8.8. $PADCMD PAD Command Features ................................................... 270
4.8.9. $CONNTO TCP PAD Connection Timeout .......................................... 271
4.8.10. $IDLETO TCP PAD Idle Timeout ........................................................ 272
4.8.11. DP Dial Command for UDP PAD ....................................................... 273
4.8.12. DT Dial Command for TCP PAD ........................................................ 275
4.8.13. $PADDISC PAD disconnect method selection ..................................... 277
4.8.14. $PADESC PAD Escape Character ....................................................... 279
4.8.15. $PDPACT PDP Activate........................................................................ 280
4.8.16. $PDPDEACT PDP Deactivate .............................................................. 281
4.9. EVENT PROCESSING COMMANDS ..................................................................... 282
4.9.1. $EVENT User Defined Input/Output .................................................... 282