| C_SIM900APN | |
| C_SIM900CardAccount | |
| C_SIM900HTTPHeader | |
| C_SIM900HTTPRequest | |
| C_SIM900HTTPResponse | |
| C_SIM900Operator | |
| C_SIM900PhonebookCapacity | |
| C_SIM900RTC | |
| C_SIM900Signal | |
| CSIM900 | A class for interfacing with the SIM900 GSM/GPRS module using Arduino and SoftwareSerial |
| CSIM900APN | A structure representing Access Point Name (APN) configuration for mobile data |
| CSIM900CardAccount | A structure representing a card account, including name, number, type, and service information |
| CSIM900HTTPHeader | A structure representing an HTTP header key-value pair |
| CSIM900HTTPRequest | A structure representing an HTTP request |
| CSIM900HTTPResponse | A structure representing an HTTP response |
| CSIM900Operator | A structure representing mobile network operator information |
| CSIM900PhonebookCapacity | A structure representing the capacity of a phonebook memory type |
| CSIM900RTC | A structure representing real-time clock (RTC) information |
| CSIM900Signal | A structure representing signal strength and bit error rate information |