Ozeki 4G LTE SMS Modem

The Ozeki 4G LTE USB SMS modem is an excellent device for sending and receiving SMS messages on 4G mobile networks. It works reliably with Windows and Linux systems and is compatible with all Ozeki SMS softare products, such as Ozeki 10 SMS Gateway, and Ozeki NG SMS Gateway. If you are not sure which modem to use, choose this model. You will not regret it.

To see this modem in action, check out the Ozeki 4G LTE SMS Modem Setup Instructions page.

These modems in addition to sending and receiving SMS messages can also be used to connect a computer to the 4G mobile network for high speed data connectivity.

Hardware information

This modem is based on the Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTA-E chipset.

Modem speed

The Ozeki 4G LTE modem is an LTE-Advanced Cat-6 embedded device, that delivers up to 100 Mbps download speed and supports most 4G LTE bands in the market providing coverage for the Americas and Europe and other EMEA countries on a single SKU.

Package contents

The package contains the modem itself, a USB cable and two SMA GSM antennas. The modem is powered from the USB port of the PC, so no external power supply is needed. The package does not include a SIM card. You need to buy a SIM card from your local mobile network operator. (Hint: When you purchase your SIM card, ask for a price plan with unlimited text messages.)

SIM card slot

The modem supports both 6 pin and 8 pin SIM cards. The supported sim card is the standard 25mm x 15mm size SIM. This is also often called as 2FF sim card form. The modem support 5V, 3V and 1.8V SIM cards. Note, that the SIM card is not part of the package. If you send SMS messages with this modem, you need to purchase a SIM card from your local mobile network operator. You cannot use the modem without a SIM card. The modem does not contain any operator locks.

When you purchase a SIM card from a mobile network, you need to "prepare" it for use. We recommend you to put it in a standard mobile phone first, and get it to activate on the network. Following this disable any PIN codes that is enabled on the SIM, and if you primarily want to send SMS messages, we recommend you to divert voice calls to another number.

SMS modem USB connector

The Ozeki 4G SMS modem comes with an USB data cable, that can connect to an USB 2.0, USB 2.1 or USB 3 port. The USB connector is USB type "A". Once the modem is connected the operating system will recognize the modem as an USB port. On Windows System, the port will be presented as a COM port, on Linux systems, the port will be presented as a /dev/ttyUSB port.

Compatible software

• Ozeki 10 SMS Gateway
• Ozeki NG SMS Gateway
• Ozeki 10 SMS Gateway
• Ozeki Alarm System
• Ozeki Chat
• Ozeki Sensor Gateway

Supported operating systems

These GSM modems work reliably on the following operating systems:

• Windows 11
• Windows 10
• Windows Server 2022
• Windows Server 2019
• Ubuntu Linux 22.04
• Ubuntu Linux 23.04

When you connect this modem to a Linux computer, you don't need to install any additional dirver software. The modem will show up as an USB serial port. You will find it under /dev/ttyUSB. Note, that on Ubuntu Linux and most other modern Linux distributions, the ModemManager of Linux will automatically recognize and take over the control of this modem. If you wish to use this modem with Ozeki SMS Gateway for Linux, you need to disable the modem manager using the following commands:

systemctl stop ModemManager
systemctl disable ModemManager

COM port for AT commands

The Ozeki SMS Gateway communicates with this modem using standard modem AT commands used for SMS messaging. These AT commands are sent through a COM port. When the device is plugged into a PC, it will show up as a COM port in the Windows Device manager or a (/dev/ttyUSB port in Linux). To be able to send and receive SMS text messages, you need to select this port in Ozeki SMS Gateway.

AT command set

The modem is based on Sierra Wireless Airprime technology, and supports the corresponding AT command set. The full AT command interface guide can be downloade from the following URL:

Sierra_AT_Command_Interface_Guide_7.47.pdf

Specifications

Manufacturer	Ozeki Ltd.
Brand Name	Ozeki 4G LTE SMS Modem
Model	Single Sim, Small FF, Dual Antenna, Rev 2.02
Board	Sierra Wireless Airprime
Chipset	Qualcomm MDM9230 4G
Form Factor	M.2 (NGFF)
Dimensions	89*45*19 mm
Product weight	175g
Colour	Black
SIM cards	SIM 6pin/8pin card interface
Technologies	GSM, GPRS, UMTS, EDGE, HSDPA, HSPA+, LTE, DC-HSPA
Operating System	Windows 11, Windows 10, Windows Server 2022, Windows Server 2019, Windows Server 2016
Guaranteed software updates until	one year
Maximum Upload Speed	50 Mbps
Maximum Download Speed	100 Mbps
GSM Bands	850, 900, 1800, 1900 MHz
WCDMA Bands	B1 (2100), B2 (1900 PCS), B3 (1800 DCS), B4 (AWS-1700), B5 (850), B8 (900 GSM)
LTE Bands	B1 (2100), B2 (1900 PCS), B3 (1800+), B4 (AWS-1), B5 (850), B7 (2600), B12 (700 a), B13 (700 c), B20 (800 DD), B25 (1900+), B26 (850+), B29 (700 d), B30 (2300 WCS), B41 (TD 2600+)
Interfaces	ADC, I2C, SIM, SPI, UART, USB
GPS Support	Yes
GNSS Support	Yes
Voice Support	No
Automotive Support	No
Temperature	-40 C to 85 C
Are Batteries Included	No
Ozeki 4G/5G ModemDriver Installer	Available after product registration on https://myozeki.com
Carriers	AT&T, Rogers, Sprint, Telus, Verizon Wireless, Vodafone, Others (the modem is not locked to any carrier)
Certifications	CE, CE RED, FCC, GCF, IC, PTCRB

More information

• Ozeki 4G LTE SMS Modem
• Ozeki Dual Sim 4G GSM SMS Modem
• Ozeki Hardware SMS Gateway
• Ozeki SMS Gateway PLC
• Price list
• Other