LTE Module Series
EC20 R2.0 AT Commands Manual
EC20 R2.0_AT_Commands_Manual Confidential / Released 4 / 217
3.4. AT+ICF Set TE-TA Control Character Framing .................................................................... 32
3.5. AT+IPR Set TE-TA Fixed Local Rate .................................................................................... 33
4 Status Control Commands ............................................................................................................... 35
4.1. AT+CPAS Mobile Equipment Activity Status ......................................................................... 35
4.2. AT+CEER Extended Error Report ........................................................................................ 36
4.3. AT+QCFG Extended Configuration Settings ........................................................................ 37
4.3.1. AT+QCFG="gprsattach" GPRS Attach Mode Configuration ....................................... 38
4.3.2. AT+QCFG="nwscanmode" Network Search Mode Configuration.............................. 38
4.3.3. AT+QCFG="nwscanseq" Network Searching Sequence Configuration ..................... 39
4.3.4. AT+QCFG="roamservice" Roam Service Configuration ............................................ 40
4.3.5. AT+QCFG="servicedomain" Service Domain Configuration ...................................... 41
4.3.6. AT+QCFG="band" Band Configuration ...................................................................... 42
4.3.7. AT+QCFG="hsdpacat" HSDPA Category Configuration............................................. 43
4.3.8. AT+QCFG="hsupacat" HSUPA Category Configuration ............................................ 44
4.3.9. AT+QCFG="rrc" RRC Release Version Configuration ............................................... 45
4.3.10. AT+QCFG="sgsn" UE SGSN Release Version Configuration ................................... 45
4.3.11. AT+QCFG="msc" UE MSC Release Version Configuration ....................................... 46
4.3.12. AT+QCFG="PDP/DuplicateChk" Establish Multi PDNs with the Same APN ............. 47
4.3.13. AT+QCFG="TDSCSQ" Set TDSCDMA RSSI Range ................................................. 47
5 SIM Related Commands .................................................................................................................... 49
5.1. AT+CIMI Request International Mobile Subscriber Identity (IMSI) ....................................... 49
5.2. AT+CLCK Facility Lock ......................................................................................................... 50
5.3. AT+CPIN Enter PIN .............................................................................................................. 52
5.4. AT+CPWD Change Password .............................................................................................. 54
5.5. AT+CSIM Generic SIM Access ............................................................................................. 55
5.6. AT+CRSM Restricted SIM Access ........................................................................................ 56
5.7. AT+QCCID Show ICCID ....................................................................................................... 57
5.8. AT+QPINC Display PIN Remainder Counter........................................................................ 58
5.9. AT+QSIMDET SIM Card Detection ....................................................................................... 58
5.10. AT+QSIMSTAT SIM Inserted Status Report ......................................................................... 60
6 Network Service Commands ............................................................................................................ 62
6.1. AT+COPS Operator Selection .............................................................................................. 62
6.2. AT+CREG Network Registration ........................................................................................... 64
6.3. AT+CSQ Signal Quality Report ............................................................................................. 66
6.4. AT+CPOL Preferred Operator List ........................................................................................ 68
6.5. AT+COPN Read Operator Names ........................................................................................ 69
6.6. AT+CTZU Automatic Time Zone Update .............................................................................. 70
6.7. AT+CTZR Time Zone Reporting ........................................................................................... 71
6.8. AT+QNWINFO Query Network Information .......................................................................... 72
7 Call Related Commands .................................................................................................................... 75
7.1. ATA Answer an Incoming Call ............................................................................................... 75
7.2. ATD Mobile Originated Call to Dial a Number ...................................................................... 76
