Shenzhen Etross Telecom Co., Ltd.
Main products:gsm fwt,gsm gateway,goip,gsm fax,gsm modem,gsm alarm,Gsm module,gsm fwp,gsm asterisk card,modem pool,gsm terminal,cdma terminal,fixed wireless terminal,billing meter,asterisk card,pc station,pc multi user share,pc share,phone adapter,antenna &accesorr
Contact Us
  • Contact Person : Mr. Zhou Frank
  • Company Name : Shenzhen Etross Telecom Co., Ltd.
  • Tel : 86-755-28167031
  • Fax : 86-755-23040460
  • Address : Guangdong,Shenzhen,202, 2/f, Block B, Yuetong Comprehensive Bldg., Meilong Road, Longhua Town, Bao'an District, Shenzhen City, Guangdong Province. China
  • Country/Region : China
  • Zip : 518109

Mini power Wireless GSM GPRS SIM module 900

Mini power Wireless GSM GPRS SIM module 900
Product Detailed
-GSM/GPRS850/900/1800/1900MHZ -Control via AT commands -low power consumption -GSM/GPRS module -GPRS wireless module

The SIM900 Quad-band GSM/GPRS module is part of SIMCom’s new Surface Mount Technology (SMT) series, 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 x3 mm, SIM900 can fit almost all the space requirements in your M2M application, especially for slim and compact demand

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 * 3 mm

•Weight: 7g

•Control via AT commands (GSM 07.07 ,07.05 and

SIMCOM enhanced AT Commands)

•SIM application toolkit

•Supply voltage range 3.4 ... 4.5 V

•Low power consumption

•Normal Operation temperature: -30 °C to +80 °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


•Non transparent mode



Specifications for SMS via GSM/GPRS

• Point to point MO and MT

•SMS cell broadcast

•Text and PDU mode



•MUX Driver

Specifications for Voice


– Half rate (HR)

– Full rate (FR)

– Enhanced Full rate (EFR)

•Hands-free operation

(Echo suppression)



•Interface to external SIM 3V/ 1.8V

•analog audio interface

•RTC backup

•SPI interface

•Two Serial interfaces

•Antenna pad







•AT cellular command interface










Mini power Wireless GSM GPRS SIM module 900

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