Please check out https://hackaday.io/project/6296/logs for example codes

Quad-band 850/900/1800/1900MHz

GPRS multi-slot class 12/10

GPRS mobile station class B

Meet the GSM 2/2 Standard

FM: Frequency range 76 ~ 109MHz, 50KHz tuning step

Size : 15.8 x 17.8 x 2.4 mm

Weight : 1.35g

Control via AT commands (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT command set )

SIM Application Toolkit

Supply voltage range : 3.4 ~ 4.3V

Low power consumption

Operating temperature range : -40 ~ 85'C

 

Fax

Group 3, class 1

 

Data transmission

GPRS class 12, max 85.6 kbps ( downlink / downstream )

Support PBCCH

Coding schemes CS 1, 2, 3, 4

PPP-stack

CSD up to 14.4 kbps

Support USSD

Nontransparent

 

SMS

Point MO and MT

SMS Broadcast

Text and PDU mode

 

Software features

0710 MUX protocol

Embedded TCP / UDP protocol

FTP / HTTP

MMS

E-mail

DTMF detection

Interference detection

 

Voice

Tricodec

- Half rate (HR)

- Full rate (FR)

- Enhanced Full Rate (EFR)

AMR

- Half rate (HR)

- Full rate (FR)

Supports echo suppression algorithm

 

Interface

88 LGA pads

Two analog audio interfaces

PCM interface

Support RTC

Serial Interface

USB interface

SIM card interface (3V / 1.8V)

Keyboard Interface

GPIO

ADC

GSM antenna pad

FM antenna pad

 

Compatibility

AT cellular command interface