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The SIM300W is a complete Dual-band/Quad-band GSM/GPRS solution in a SMT module which can be embedded in the customer applications.

Featuring an industry-standard interface, the SIM300W delivers GSM900/1800MHz performance for Voice, SMS, Data, and Fax in a small form factor and with low power consumption.

The leading features of SIM300W make it ideal for applications such as WLL applications(Fixed Celullar Terminal), handled devices.

General features 
  - Dual-Band GSM 900/1800MHz 
  - GPRS multi-slot class 10/8 
  - GPRS mobile station class B 
  - Compliant to GSM phase 2/2+
     – Class 4 (2 W @ 900MHz)
     – Class 1 (1 W @ 1800MHz) 
  - Dimension: 33*33*3mm 
  - Weight: 8g 
  - 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: -20°C to +60°C 

Specifications for fax 
  - Group 3, class 1

Specifications for data:   
  - PBCCH support  
  - GPRS class 10: max, 85, 6 kbps(downlink) 
  - PPP-stack    
  - Coding schemes CS 1, 2, 3, 4     
  - CSD up to 14.4 kbps 
  - USSD 
  - Non transparent mode 

Specifications for SMS via GSM / GPRS 
  - Point-to-point MO and MT 
  - SMS cell broadcast 
  - Text and PDU mode

Specifications for voice 
  - Tricodec
     – Half rate (HR)
     – Full rate (FR)
     – Enhanced Full rate (EFR) 
  - Hands-free operation 
  - Echo cancellation 
  - AMR 

Drivers 
  - MUX Driver 

Interfaces 
  - Interface to external SIM 3V/1.8V 
  - Two analog audio interfaces 
  - RTC backup   
  - Serial Interface and debug interface 
  - LCD interface 
  - Keypad interface    
  - Antenna connector and antenna pad 

Compatibility 
  - AT cellular command interface