Designed for global market, SIM5320 is a quad-band GSM/GPRS/EDGE and dual-band UMTS /HSDPA that works on frequencies of GSM 850MHz, EGSM 900 MHz, DCS 1800 MHz, PCS 1900MHz and WCDMA 2100/ 900MHz, 2100/850 MHz or 1900/850MHz

SIM5320E:
- Dual-Band UMTS/HSDPA 900/2100MHz (3G Network)
- Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz (2G Network)

Features:

• Input voltage:5-9V
• Adapter current:1A or above
• 3.7V Lithium battery interface
• Communication interface is TTL level serial port(D2-TXD D3-RXD), which is fully compatible with Arduino.
• The SIM5320E can be controlled by level control (D7-ON / OFF)
• On-board three red LED lights to indicate power, status and network conditions;
• On-board lithium battery circuit to power the SIM5320E RTC;
• On-board active GPS antenna SMA interface;
• Onboard 3G antenna SMA interface;
• On-board Arduino expansion interface, fully support Arduino;
• Support four-band headphone jack (Type I);
• Support for updating SIM5320E firmware and AT command debugging via on-board MICRO USB.
• Onboard TVS, SIM card protection IC, two 470UF tantalum capacitors and other ways to make the development board performance and stability.
• Through the TTL level serial port to communicate with the external system, the default can directly communicate with the arduino system, no level matching.
• The communication interface (command) is an AT command. That is, the control module implements the function by AT command. For example, the control module dials ATD *******; (* stands for telephone number). We will provide a complete AT instruction set.

Document link : https://tinyurl.com/SIM5320E-Board

Video tutorial link https://youtu.be/4qMJK6Mxma4