Configure VoIP for international calls in 6 simple steps
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- Configure VoIP for international calls in 6 simple steps
Author: Gtphone
Date: 03/03/2025
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Is your company ready to enter the global market? Then you need to learn to Configure VoIP for international calls because this tool eliminates geographical barriers and optimizes business communication.
Imagine a very busy day: a customer in Germany calls to confirm an order, your supplier in Mexico reports a delay and your team in Colombia wait for a video conference.
Managing all this at the same time may be a challenge, but there is one solution: VoIP technology for companies, because with it you manage everything in real time and from your office or cell.
According to a Business Research Insights report Europe has a 58.8% share in the VoIP market, and it is no coincidence. It's just that a Virtual PBX helps reduce international call costs, optimizes your team's productivity and improves your customers' experience.
If you want to know how to implement this system in your business and make the most of its benefits, this step-by-step guide is for you.
Table of Contents
Discover the benefits and configure VoIP for international calls
The main benefits of VoIP are:
- Cost reduction, especially when it comes to international calls.
- Escalability, because it fits your business growth.
- HD voice quality that is indispensable in the digital age.
- Total mobility, as it allows making and receiving calls from anywhere.
These are the reasons why so many companies are migrating to VoIP.

How to set up a VoIP system for international calls? 6 simple steps
If you already have a VoIP PBX and plan to expand your business to other countries, half the way is already going!, because setting an international number is simple and done in minutes.
If this is the first time you'll be using cloud telephony for business, you don't have to worry either, because the process is very short.
Then we will explain in 6 simple steps how configure VoIP for international calls:
1. Evaluates international communication needs
The first thing you have to do is identify the countries in which you will need a virtual number presence and what are the functionalities you will need in the service.
Once you have this defined, then you must consider aspects such as:
- How many employees will need access to international calls?
- How many extensions will you need?
- Will the numbers be compatible with the management tools you use in your company?
This step is of great importance, because a poorly sized system in the cloud center can generate unnecessary costs or affect service quality.
2. Choose a reliable VoIP service provider
Choosing a good VoIP operator is essential, as it will directly impact the success of your business.
Why is this choice so important?
A good VoIP provider offers a call-making tool and a reliable, scalable and integrated system adapted to your brand's needs.
So, to choose a good supplier:
- Compare costs, especially with international calls.
- Check if the technology you use is compatible with your system.
- Seek assistance 24 / 7.
Finally, take as long as you need to choose an international VoIP provider, because it is a decision that can define the success of your global communications.
3. Acquisition and configuration of equipment
To make and receive international calls you only need two things: Internet and equipment. But which teams? We refer to IP phones or softphones, the choice between one or the other depends on the needs and working dynamics of each company.
IP phones vs. Softphones
- IP phones: are physical devices designed to manage VoIP calls with high audio quality and stability. They are ideal for high-volume call companies or customer service centres.
- Softphones: are applications you can install on the computer or on mobile devices. They are perfect for remote workers or companies that seek flexibility without additional hardware costs.
What if I have conventional phones?
If you have analog equipment, it's no problem. You'll only need ATA adapters for conventional phones, a small device that converts the analogue signal to digital to take advantage of IP telephony without changing the equipment.

4. Install and configure VoIP software
This is the time when you define how your system will work, who will have access and how it will integrate with the tools you already use.
This step is important, because a well-executed process guarantees high-quality VoIP calls. You must do the following:
- Assign users:Our recommendation is that you create individual accounts for each employee.
- Manage permits:defines roles and permissions for each employee. For example, some users can only receive calls, while others have access to international calls.
- Blinda access to digital telephony:creates strong passwords and, if possible, activates authentication in two steps for greater security.
5. Configure international numbers and activate plans
When you already have everything structured it is time to set up the numbers and for that you must do some things, such as:
- Verify legal requirements, as some countries require that you have a physical presence or specific documents.
- Define whether calls are directed to a virtual switch or to specific workers.
Now, how do you choose the right plan?
To choose the call plan without borders you have to:
- Make sure the plan covers countries where you have a client.
- Review the additional costs.
- Configure VoIP for international calls that allows you to choose more numbers.
6. Test the quality of calls
Finally, try the service your customers will receive. Every detail is important, so this is a checklist of what you need to review:
- Latency
- Jitter
- Loss of packages
- Bandwidth
- Audio understanding
Finally, do simultaneous call simulations from different teams and locations. Don't forget to ask your employees for a feedback, this will allow you to make the necessary adjustments.
The importance of all working well lies in the fact that this depends, to a large extent, on the growth of your business: a American Express study reveals that 70% of consumers are willing to spend more money in exchange for good service.
Why set VoIP for international calls today?
Configure VoIP for international calls is a smart strategy to transform the way your business communicates, because, among other advantages, it allows you:
- Reduce costs
- Optimize your team's productivity.
- Offer a brand experience to your customers.
- To be close to technological innovations.
Virtual numbers bring tangible and lasting benefits that mark a before and after in any business, no matter whether it is a Small and Medium Enterprise (PyME) or a large corporation.
Follow this guide and you will guarantee a global connectivity for your company.
Ready to take a new step? Contact us and set up VoIP for international calls today and let technology drive your business.
Author of this article: Gtphone. All rights reserved.
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