[discontinued] SIMCOM SIM900 GPRS+GSM QUAD-Band Modul+Entwicklerboard für AVR MCU ARM

SPECIFICATION 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 Special firmware:  FOTA  MMS  Java (cooperate with Iasolution)    Embedded AT 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  REACH Carrier Approvals:  AT&