---
product_id: 82426086
title: "OSTENT GSM Modem with Wavecom Q2303A Module USB Interface at Commands SMS"
brand: "ostent"
price: "533 kr"
currency: DKK
in_stock: true
reviews_count: 13
category: "Ostent"
url: https://www.desertcart.dk/products/82426086-ostent-gsm-modem-with-wavecom-q2303a-module-usb-interface-at
store_origin: DK
region: Denmark
---

# Dual GSM 900/1800 MHz bands USB interface for plug & play AT command control for custom setups OSTENT GSM Modem with Wavecom Q2303A Module USB Interface at Commands SMS

**Brand:** ostent
**Price:** 533 kr
**Availability:** ✅ In Stock

## Summary

> 📡 Stay connected globally with industrial strength and plug-and-play ease!

## Quick Answers

- **What is this?** OSTENT GSM Modem with Wavecom Q2303A Module USB Interface at Commands SMS by ostent
- **How much does it cost?** 533 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/82426086-ostent-gsm-modem-with-wavecom-q2303a-module-usb-interface-at)

## Best For

- ostent enthusiasts

## Why This Product

- Trusted ostent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Complete Kit:** Includes USB cable, DB antenna, and sliding SIM slot—everything you need to get started, right out of the box.
- • **Global GSM Compatibility:** Seamlessly connect across Europe, Asia, Australia, Middle East & Africa with dual-band GSM 900/1800 MHz support.
- • **Plug & Play USB Interface:** Instantly integrate with your systems via a reliable USB port—no bulky adapters needed.
- • **Industrial-Grade Durability:** Built with a robust aluminous shell and wide temperature tolerance (-20°C to +55°C active) for mission-critical environments.
- • **Advanced Control via AT Commands:** Empower your tech stack with flexible command control, supporting SMS, fax, and voice switching.

## Overview

The OSTENT GSM Modem leverages the industrial-grade Wavecom Q2303A module to deliver dual-band GSM 900/1800 MHz connectivity via a USB interface. Designed for professional use, it supports AT command control for SMS, fax, and voice, housed in a durable aluminous shell with wide temperature tolerance. Ideal for global deployments across Europe, Asia, Australia, Middle East, and Africa, this compact modem kit includes all essentials for immediate integration.

## Description

Before taking this item, please check whether your region is covered by anyone of GSM 900MHZ/1800MHZ.GSM (Groupe Special Mobile) - Global System for Mobile communications - most popular standard for mobile phones in the world. GSM 900 / GSM 1800 MHz are used in most parts of the world: Europe, Asia, Australia, Middle East, Africa. GSM 850 / GSM 1900 MHz are used in the United States, Canada, Mexico and most countries of S. America.GSM Modem Product ListThe whole product includes following list of articles:1. One USB cable2. One DB Antenna, 80mm3. Modem Body: white aluminous shell4. One Sliding SIM Card SlotTechnical Parameters Specification for GSM Modem1. TypeGSM Modem with industrial-grade Wavecom Q2303A module.2. Technological Specifications*Support dual frequency: GSM 900/1800MHz*Conform to ETSI GSM 2+ standard*Output Power: Class4 (2W @ 900 MHz)Class5 (1W @ 1800 MHz)*Power Source: USB*Temperature Range: -20 Centigrade Degree ~ +55 Centigrade Degree active status-25 Centigrade Degree ~ +70 Centigrade Degree preserved condition*Product Size: standard3. Basic Features*Asynchronous, Transparent or Non-transparent, The highest baud rate: 14400bits/s*Serial Baud Rate: 300-115200bits/s*Automatic Baud Rate: from 2,400 to 19,200bits/s*Support Group 3 Document Facsimile Transmission*Support Switching between Voice and Fax*V.42,V.42bis*USB Interface*Control via AT Commands (GSM 07.07, 07.05)*Compatible with SMS Studio, SMS Caster

Review: DEFAULT BAUD RATE MISLEADS PEOPLE TO CONDEMN THIS MODEM - I had to troubleshoot on my own and discovered that this modem by default uses 115200,8,n,1 as opposed to the common 9600,8,n,1 listed on the prolific driver default settings in Windows after installation. One other extremely very important thing to make it work, make sure you Assert the RTS Handshaking Line in your comport to true as opposed to NONE which is default. Once this is done, this modem start working like a charm if you know your AT commands of course. I suspect lack of this info on these default settings is why it never responds or works for most users who buy it and end up condemning it. For those it works for first time, I also suspect it will simply have been by chance that they will have got the bound rate and handshaking correct first time. Its sad that this very basic info should have been readily supplied / marked on this otherwise beautiful device by the manufacturer. So I gave 5 starts to the modem but 1 start to the manufacturer for lack of documentation. This good modem has no owner in this regard.
Review: The device manager in Windows looked fine, I could see the "Prolific USB-to-Serial Comm Port ... - I bought two modems and none of them worked. I tested them in a laptop with Windows 10 and in a laptop with Ubuntu 16.04. I followed the instructions: downloaded the driver PL2303 and installed it. The device manager in Windows looked fine, I could see the "Prolific USB-to-Serial Comm Port (COM3)". However, I was not able to send AT commands to the router using PUTTY. The terminal window froze. In the case of Ubuntu, the command dmesg | grep tty returned "pl2303 converter now attached to ttyUSB0", however I was not able to use it with gammu/wammu nor kannel. It was not recognized. It seems that the modem is not compatible with the most common software.

## Features

- Industrial-Grade GSM Modem
- Based on Wavecom Q2303A Module
- USB Port Interface
- Control via AT Commands
- Support Dual Frequencies: GSM 900/1800MHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BD0V57I |
| Best Sellers Rank | #101,177 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #292 in Computer Networking Modems |
| Customer Reviews | 3.7 3.7 out of 5 stars (75) |
| Date First Available | February 8, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9.9 ounces |
| Item model number | 028400 |
| Manufacturer | OSTENT |
| Package Dimensions | 6.54 x 5.43 x 1.34 inches |

## Product Details

- **Brand:** OSTENT
- **Color:** white
- **Compatible Devices:** Personal Computer, Laptop, Router
- **Connectivity Technology:** USB
- **Number of Ports:** 2

## Images

![OSTENT GSM Modem with Wavecom Q2303A Module USB Interface at Commands SMS - Image 1](https://m.media-amazon.com/images/I/61N7eS-8+YL.jpg)

## Questions & Answers

**Q: do you know how many sms can send in 1 hour? manual with at commands is include?**
A: I wasn't able to make this one work.  But for this kind of modems it is dependent on the service provider.  Here in Costa Rica it is about 300 sms by hour.  The modem do not comes with any documentation.  I do not recommend to buy this thing if you are trying learn how to use it.  I needed to search the internet for similar modems to find manuals.  Even though I had experience with similar modems, I could not make this work.  I don't have support either, so if any fails no body will help you.

**Q: it comes with power supply and antenna?**
A: No external power supply as its USB powered. Comes with an antenna.

**Q: Does this work in the united states with tmobiles gsm sim cards?**
A: No, you should buy the 4G modems:
Serial port: http://www.amazon.com/dp/B07JPF96ZC
USB port: http://www.amazon.com/dp/B07JPFKDL6

**Q: Can you connect this to a travel router?**
A: This modem is mostly used to connect to PC USB port. You need a software to support this modem.
I think travel router doesn't have this kind of software, so this modem can't work with travel router.

## Customer Reviews

### ⭐⭐⭐⭐⭐ DEFAULT BAUD RATE MISLEADS PEOPLE TO CONDEMN THIS MODEM
*by K***A on July 23, 2020*

I had to troubleshoot on my own and discovered that this modem by default uses 115200,8,n,1 as opposed to the common 9600,8,n,1 listed on the prolific driver default settings in Windows after installation. One other extremely very important thing to make it work, make sure you Assert the RTS Handshaking Line in your comport to true as opposed to NONE which is default. Once this is done, this modem start working like a charm if you know your AT commands of course. I suspect lack of this info on these default settings is why it never responds or works for most users who buy it and end up condemning it. For those it works for first time, I also suspect it will simply have been by chance that they will have got the bound rate and handshaking correct first time. Its sad that this very basic info should have been readily supplied / marked on this otherwise beautiful device by the manufacturer. So I gave 5 starts to the modem but 1 start to the manufacturer for lack of documentation. This good modem has no owner in this regard.

### ⭐ The device manager in Windows looked fine, I could see the "Prolific USB-to-Serial Comm Port ...
*by A***. on March 7, 2017*

I bought two modems and none of them worked. I tested them in a laptop with Windows 10 and in a laptop with Ubuntu 16.04. I followed the instructions: downloaded the driver PL2303 and installed it. The device manager in Windows looked fine, I could see the "Prolific USB-to-Serial Comm Port (COM3)". However, I was not able to send AT commands to the router using PUTTY. The terminal window froze. In the case of Ubuntu, the command dmesg | grep tty returned "pl2303 converter now attached to ttyUSB0", however I was not able to use it with gammu/wammu nor kannel. It was not recognized. It seems that the modem is not compatible with the most common software.

### ⭐⭐⭐⭐⭐ Received before delivery date and work fine
*by E***B on November 28, 2022*

Work fine with my RaspiSMS. Here my gammu.rc file : [gammu] port = /dev/ttyUSB0 model = connection = gammuloc = utf8

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-20*