ANDTech Focus on wireless module and hardware solution for 15 years.
SIM900D, GSM GPRS GPS module
- GPRS class 10: max. 85.6 kbps (downlink)
- PBCCH support
- Coding schemes CS 1, 2, 3, 4
- CSD up to 14.4 kbps
- USSD
- Non transparent mode
- PPP-stack
Specifications for SMS via GSM/GPRS
- Point to point MO and MT
- SMS cell broadcast
- Text and PDU mode
Drivers
- MUX Driver
Specifications for Voice
- Tricodec
– Half rate (HR)
– Full rate (FR)
– Enhanced Full rate (EFR)
- Hands-free operation
(Echo suppression)
Interface
- Interface to external SIM 3V/ 1.8V
- analog audio interface
- RTC backup
- SPI interface
- Two Serial interfaces
- Antenna pad
- I2C
- GPIO
- PWM
- ADC
Compatibility
- AT cellular command interface
Approvals(planning)
- CE
- FCC
- ROHS
- PTCRB
- GCF
- AT&T
- ICASA