sim300 gsm module;
1.sim900 gsm gprs module hot selling
2.Quad-Band 850/ 900/ 1800/ 1900 MHz
3. original from simcom Stable

SIM900  (HOT selling !)

sim300 gsm module

SIM900
SIMCom presents an ultra compact and reliable wireless module-SIM900. This is a complete Quad-band GSM/GPRS module in a SMT type and designed with a very powerful single-chip processor integrating AMR926EJ-S core, allowing you to benefit from small dimensions and cost-effective solutions.   Featuring an industry-standard interface, the SIM900 delivers GSM/GPRS 850/900/1800/1900MHz performance for voice, SMS, Data, and Fax in a small form factor and with low power consumption. With a tiny configuration of 24mm x 24mm x 3 mm, SIM900 can fit almost all the space requirements in your M2M applications, especially for slim and compact demands of design.  

General features

* Quad-Band 850/ 900/ 1800/ 1900 MHz
* GPRS multi-slot class 10/8
* GPRS mobile station class B
* Compliant to GSM phase 2/2+
   Class 4 (2 W @850/ 900 MHz)
   Class 1 (1 W @ 1800/1900MHz)
* Dimensions: 24*24*3mm
* Weight: 3.4g
* Control via AT commands (GSM 07.07 ,07.05 and  
  SIMCOM enhanced AT Commands)
* SIM application toolkit
* Supply voltage range : 3.1 ... 4.8V
* Low power consumption: 1.5mA(sleep mode)
* Operation temperature: -40°C to +85 °C   

Specifications for Fax
* Group 3, class 1  

 Specifications for Data
* 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  

Software features
* 0710 MUX protocol
* embedded TCP/UDP protocol
* FTP/HTTP( available at late July ,2010)
* FOTA ( available at July ,2010)
* MMS (available at July ,2010)
* Embedded AT (available at Q3,2010)  

Specifications for Voice

* Tricodec
  – Half rate (HR)
  – Full rate (FR)
  – Enhanced Full rate (EFR)
* Hands-free operation
  (Echo suppression)
* AMR
  – Half rate (HR)
  – Full rate (FR)   Interfaces
* Interface to external SIM 3V/ 1.8V
* analog audio interface
* RTC backup
* SPI interface (option)
* Serial interface
* Antenna pad
* I2C
* GPIO
* PWM
* ADC  

Compatibility

 
* AT cellular command interface  

 Certificates:
* CE
* FCC
* ROHS
* PTCRB
* GCF
* IC
* ICASA
* TA
* REACH * AT&T