Contents
APPLICABILITY TABLE 2
1. INTRODUCTION 26
Scope 26
Audience 26
Contact Information, Support 26
Symbol Convention 27
2. COMMANDS 29
Definitions 29
AT Command Syntax 30
2.2.1. String Type Parameters 31
2.2.2. Command Lines 31
2.2.2.1. ME Error Result Code - +CME ERROR: <err> 32
2.2.2.2. Message Service Failure Result Code - +CMS ERROR: <err> 40
2.2.3. Information Responses and Result Codes 42
2.2.4. Command Response Time-Out 43
2.2.5. Command Issuing Timing 43
Storage 43
2.3.1. Factory Profile and User Profiles 43
AT Command Short Overview Table 45
AT Commands Availability Table 46
3. AT COMMANDS REFERENCES 69
Call & DTMF 69
3.1.1. AT+CHUP - Hang Up Call 69
3.1.2. AT+CSTA - Select Type of Address 70
3.1.3. AT+FCLASS - Select Active Service Class 72
3.1.4. AT#ACAL - Automatic Call 73
3.1.5. AT#ACALEXT - Extended Automatic Call 75
3.1.6. AT#ECAM - Extended Call Monitoring 77
3.1.7. AT#ECAMURC - Extended Call Monitoring Unsolicited Response mode 80
3.1.8. AT#CFF - Call Forwarding Flags 82
3.1.9. AT#CESTHLCK - Call Establishment Lock 84
3.1.10. AT+VTS - DTMF Tones Transmission 85
3.1.11. AT+VTD - Tone Duration 87
3.1.12. AT+CMOD - Call mode 89
3.1.13. AT#CODECIMS - Codec for IMS 91