SIM900B - GSM/GPRS module

1)SIM900B, GSM GPRS GPS module,GSM GPRS module SIM900B SIM900 SIM900A SIM900D
2)SIM900B,GSM Wireless module

SIM900B, GSM GPRS GPS module,GSM GPRS module SIM900B SIM900 SIM900A SIM900D

- 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