Quectel EC25 Command Manual page 6

6.3. AT+CSQ Signal Quality Report .......................................................................................... 78
6.4. AT+CPOL Preferred Operator List ...................................................................................... 79
6.5. AT+COPN Read Operator Names ...................................................................................... 81
6.6. AT+CTZU Automatic Time Zone Update ............................................................................ 81
6.7. AT+CTZR Time Zone Reporting ......................................................................................... 82
6.8. AT+QLTS Obtain the Latest Time Synchronized Through Network .................................... 84
6.9. AT+QNWINFO Query Network Information ........................................................................ 85
6.10. AT+QSPN Display the Name of Registered Network ......................................................... 87
7 Call Related Commands ................................................................................................................. 89
7.1. ATA Answer an Incoming Call ............................................................................................. 89
7.2. ATD Mobile Originated Call to Dial a Number .................................................................... 90
7.3. ATH Disconnect Existing Connection ................................................................................. 92
7.4. AT+CVHU Voice Hang up Control ...................................................................................... 92
7.5. AT+CHUP Hang up Call ..................................................................................................... 93
7.6. +++ Switch from Data Mode to Command Mode ................................................................ 93
7.7. ATO Switch from Command Mode to Data Mode ............................................................... 94
7.8. ATS0 Set Number of Rings before Automatically Answering Call ....................................... 95
7.9. ATS6 Set Pause before Blind Dialing ................................................................................. 96
7.10. ATS7 Set Time to Wait for Connection Completion ............................................................ 96
7.11. ATS8 Set the Time to Wait for Comma Dial Modifier .......................................................... 97
7.12. ATS10 Set Disconnection Delay after Indicating the Absence of Data Carrier ................... 98
7.13. AT+CBST Select Bearer Service Type ............................................................................... 98
7.14. AT+CSTA Select Type of Address .................................................................................... 101
7.15. AT+CLCC List Current Calls of ME .................................................................................. 101
7.16. AT+CR Service Reporting Control .................................................................................... 103
7.17. AT+CRC Set Cellular Result Codes for Incoming Call Indication ..................................... 104
7.18. AT+CRLP Select Radio Link Protocol Parameter ............................................................. 105
7.19. AT+QECCNUM Configure Emergency Call Numbers ...................................................... 106
7.20. AT+QHUP Hang up Call with a Specific Release Cause .................................................. 108
8 Phonebook Commands ................................................................................................................ 110
8.1. AT+CNUM Subscriber Number ......................................................................................... 110
8.2. AT+CPBF Find Phonebook Entries ................................................................................... 111
8.3. AT+CPBR Read Phonebook Entries ................................................................................. 112
8.4. AT+CPBS Select Phonebook Memory Storage ................................................................. 113
8.5. AT+CPBW Write Phonebook Entry.................................................................................... 114
9 Short Message Service Commands ............................................................................................ 116
9.1. AT+CSMS Select Message Service .................................................................................. 116
9.2. AT+CMGF Message Format .............................................................................................. 117
9.3. AT+CSCA Service Center Address .................................................................................... 118
9.4. AT+CPMS Preferred Message Storage ............................................................................. 119
9.5. AT+CMGD Delete Message ............................................................................................. 121
9.6. AT+CMGL List Messages ................................................................................................. 122
9.7. AT+CMGR Read Message ............................................................................................... 125
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EC25&EC21 AT Commands Manual
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