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Avoid costly and limited Roaming and keep your mobile number active and receive calls and SMS from your cell phone through our Advanced SIM Gateway
Global Reach and Local Rates: receive calls and SMS anywhere in the world at a fixed annual cost. Your customers, banks and financial institutions will be able to call your mobile number or send you SMS at local rates anywhere in the world at a fixed annual cost.
Easy Setup: No need to be a technology expert! Our user-friendly interface makes setup a breeze, getting you connected faster than ever.
Multi-SIM Compatibility: Manage multiple SIM cards effortlessly, choosing the most cost-effective option for each call.
Reliable Performance: Our state-of-the-art technology guarantees constant connectivity and excellent call quality at all times.
What is a SIM Gateway for and how does it work?
A SIM Gateway (also known as a GSM Gateway or SIM box) is a device used to connect SIM cards to cell phone networks and receive calls through these SIM cards using a VoIP (Voice over Internet Protocol) interface. Its main function is to allow calls to be routed between mobile networks and VoIP networks.
The operation of a SIM Gateway involves several steps
Connecting SIM cards: The device has multiple slots for inserting SIM cards from mobile operators. These SIM cards are used to establish mobile telephony connections.
VoIP connection: The SIM Gateway is also connected to a VoIP-based telephony network (our server).
Call handling: When someone makes a call over the VoIP network to a cell phone number, the SIM Gateway routes the call and forwards it to you free of charge. The SMS will arrive in your mailbox.
Protocol conversions: The SIM Gateway converts cell phone signals into the VoIP network.
In short, a SIM Gateway acts as a bridge between traditional mobile networks and VoIP networks, allowing you to receive calls to your SIM card (your cell phone) using the VoIP infrastructure. These devices are useful for those who spend a lot of time abroad and do not want to use expensive roaming. In addition, you can manage multiple SIM cards and take advantage of the flexibility and benefits of VoIP networks.
We keep your mobile number active all the time and you will not lose your phone number, calls or SIM messages from your social networks, financial institutions and banks.
How to keep your phone number active abroad without roaming?
Say goodbye to all the worries about how to keep your cell phone number working and not miss important text messages or calls while traveling.
When you move abroad, keeping your phone number active is one of the biggest challenges. You can’t rely solely on messaging platforms like WhatsApp, Telegram or even Skype. Why? Because banks, financial institutions and PayPal, social networks, often verify the user’s identity via text messages. Not having access to your phone number could mean losing access to your bank account, PayPal or social network.
So how can you continue to use your phone number even when you are abroad?
OPM offers this service in:
Latin America: Colombia, Panama and Venezuela.
Europe: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, United Kingdom.
Your country is not on the list? Don't worry.
We have options for any country. You just need to purchase a hosting device and connect it to a high quality Internet service and our server.
In addition, we have VoIP numbers that allow you to receive calls and SMS from various countries around the world such as Australia, Brazil, Israel, United Kingdom and United States.
With OPM, you will instantly receive any call or SMS on your phone number. There is no need to spend a fortune on Roaming services, which usually have short validity periods. You will always have a phone number at your disposal, no matter where you are.
