Best 12 Providers for VoIP International Calls 2025

In the digital and globalised era we find ourselves in, companies are constantly seeking to expand their operations beyond national borders and enter new international markets. However, this process of internationalisation can present unique challenges, especially when it comes to enterprise communication.

In this article, we explore the impact of international VoIP on companies, analysing how it has managed to transform the way organisations communicate globally.

Table: Top 12 VoIP international call software

List: Best 12 VoIP international calls services

1. Ringover

Ringover provides cloud VoIP services for businesses of all sizes. There are three affordable plans listed, which allow you to choose the option best for your business's current needs, and scale as it grows.

Thanks to this flexibility, and a wide variety of features and integrations, Ringover has proved itself to be one of the best options on the market.

Ringover Advantages➕

• Free 7-day trial
• Unlimited calls
• Performance analytics for easy reporting
• Many integrations available

Ringover Disadvantages➖

• May not be the best for entrepreneurs

Ringover Pricing💲

Ringover has three plans available. The most affordable option is the Smart plan, which begins at £19 per user/month. The mid-tier Business plan is £39 per user/month, while the Advanced plan is £49 per user/month.

2. Nextiva

Founded in 2006, Nextiva is a large company which provides services beyond just VoIP, including phone system hardware. However, the features included in Nextiva's plans can be quite high, and there is little information available about the integrations they have available.

Nextiva Advantages➕

• Scalable plans

Nextiva Disadvantages➖

• Pricing not very transparent
• Little information regarding integrations
• Occasional reliability issues

Nextiva Pricing💲

There are three options listed online, and fees can change depending on how many users are listed on the plan. As such, it's difficult to give specific figures.

3. 8x8

This communication platform for businesses has all the necessary features like video calls, analytics, and APIs. Plus, if you are running a contact centre, they have software available.

8x8 Advantages➕

• International calling options

8x8 Disadvantages➖

• Customer support isn't always quality
• Poor user experience

8x8 Pricing💲

Prices are on request only, so you'll need to reach out to their sales team for precise figures.

4. Zoom Phone

Zoom is best known as a video call platform, but it also launched a voice call service for those who need phone service. However, the voice call software is very light, lacking a few important features. For example, all the outbound calls are metered, so costs can balloon quickly.

Zoom Phone Advantages➕

• Easily connects with Zoom

Zoom Phone Disadvantages➖

• Not possible to get an international number
• Not possible to send or receive text messages
• Metered outbound calling

Zoom Phone Pricing💲

You can get the software for as little as £8 per user/month, but that won't be your final price if you use the software to make calls. That's because each call is metered, or charged per minute.

5. RingCentral

Though this business originally only offered telephone software, it has since expanded to other software like UCaaS. The company has also launched RingSense, which is an AI for business tool which uses conversation intelligence to support sales enablement.

RingCentral Advantages➕

• Multiple tools available from the same company

RingCentral Disadvantages➖

• High prices for services provided
• Reports of poor customer support
• Overwhelming interface for new users

RingCentral Pricing💲

Three options are listed on their website, one for £18 per user/month, another for £24 per user/month, and a final option for £29 per user/month.

6. Mitel

Mitel has many communication tools on offer, including options to support your call centre operations. Because it was founded in the 1970s, there is a large selection of hardware in addition to softphone software. In fact, they offer business phone systems as well as AI-based agents and WebRTC technology.

Mitel Advantages➕

• Decent selection of integrations

Mitel Disadvantages➖

• There's a confusingly large selection of plans
• Affordable plans missing key features
• Unclear pricing

Mitel Pricing💲

Prices are on request only.

7. Grasshopper

If you need to add an extra phone line or extension to your phone, Grasshopper could be a great option for you. There are a few features available as well, such as online faxing and toll-free numbers.

Grasshopper Advantages➕

• Relatively easy setup

Grasshopper Disadvantages➖

• Not very scalable
• Very basic feature selection
• Not suitable for those with complex communication needs

Grasshopper Pricing💲

Unfortunately,Grasshopper doesn't give pricing information in pounds. But you can get a general idea of the required budget by checking out their website.

There are three plans listed, which are billed annually at $26, $44, and $80. Just pay attention to what's included in each plan because the number of phone numbers and extensions are limited depending on which you choose.

8. Ooma

Originally meant to serve individuals and not businesses, Ooma launched their professional services in 2013. Now, if you have a small operation, you can subscribe to Ooma's UCaaS software with tools like call routing.

Ooma Advantages➕

• Affordable price for light plans

Ooma Disadvantages➖

• High international calling rates
• Lackin in customer support
• Very limited features

Ooma Pricing💲

Their pricing range is quite confusing, especially because the pricing is only available in dollars. Many users get confused by the large amount of add-ons listed, which can ultimately drive up the price.

9. Intermedia Unite

Based out of California, this is a cloud communication platform with the features you can normally expect from a VoIP service like video calls, internal messaging, and other options to manage inbound and outbound calls.

Intermedia Unite Advantages➕

• Integrations available

Intermedia Unite Disadvantages➖

• Could be prohibitively expensive for small businesses
• Potential for service outages
• Poor user experience

Intermedia Unite Pricing💲

Intermedia doesn't provide prices in pounds. But you can get a general idea of the necessary budget by checking out their website. There are two options available from this service, which don't have a big price difference. The two plans stand at about $28 and $33, though it's unclear if you'll be billed monthly or annually.

10. 3CX

This software sticks out among its competitors because it actually doesn't provide telephone service. Instead, it allows you to use VoIP features–and you'll have to contract with a service provider to make the calls or send messages.

3CX Advantages➕

• Flexibility to choose your own provider

3CX Disadvantages➖

• No phone service included
• Need technical knowledge to customise it to your needs

3CX Pricing💲

3CX bills annually, with the service beginning at £235 per year.

11. Five9

Five9 specialises in customer service, ensuring that your inbound call centre functions as efficiently as possible. With tools like interactive voice response (IVR) menus, you'll no longer get overwhelmed by incoming calls.

Five9 Advantages➕

• High level of flexibility because it's accessible via the Internet

Five9 Disadvantages➖

• Poor user experience
• Difficult to configure integrations

Five9 Pricing💲

To get an accurate idea of how much Five9's service costs, it's best to reach out. That's because they only list their prices in dollars. With that being said, there are multiple plans available, with prices beginning at $150 per month.

12. OpenPhone

Targeting small businesses, OpenPhone's main service is providing the ability for users to add a second phone number to their personal cell phone. That was the tool the company launched with, but the company has now expanded to offer cloud VoIP software suitable for small teams.

OpenPhone Advantages➕

• Offers a mobile app

OpenPhone Disadvantages➖

• High prices for international calls
• Text messages are charged per message

OpenPhone Pricing💲

Once again, OpenPhone doesn't give their plan prices in pounds. But to give you a general idea of the budget necessary, OpenPhone offers two plans, one at $19 per user/month and a second at $33 per user/month. Finally, if your business is very large, there is an option that is priced on request.

Table: VoIP telephony vs. Traditional telephony

VoIP telephony is a technology that allows voice calls to be made over the internet instead of using traditional telephone lines. This revolutionary solution has proven to be an indispensable tool for the internationalisation of companies, as it allows for cost reduction, simplification of communication management, and expansion of an organisation's global reach.

What are international VoIP calls?

International VoIP calls refer to voice communications made over the Internet using VoIP technology on an international level. Instead of using traditional telephone lines, VoIP technology converts voice into digital data and transmits it over the Internet. This allows international calls to be made more economically and efficiently compared to conventional telephone systems.

By using IP telephony and virtual numbers for international calls, companies can take advantage of seamless and high-quality connections, regardless of the geographical location of the parties involved. Additionally, using VoIP can help reduce communication costs, as international call rates are usually cheaper via VoIP.

In summary, international VoIP calls refer to making voice calls globally using VoIP features, which utilises the Internet for data transmission and enables efficient and cost-effective communication compared to traditional phone systems.

What are the advantages of using an international VoIP provider for businesses?

As mentioned earlier, using VoIP in international business communications offers several advantages:

• Cost savings: By using VoIP, companies can significantly reduce their communication expenses, especially in international calls. Internet calls are usually cheaper than traditional phone calls, allowing companies to save on international and long-distance call fees.
• Global reach: VoIP gives greater coverage, allowing companies to establish a virtual presence in different parts of the world. With international numbers, companies can easily connect with customers, partners, and employees from various countries, facilitating global expansion and improving international reach.
• Flexibility and scalability: VoIP software is highly flexible and scalable, allowing companies to adapt their communication needs as they expand internationally. Adding or removing phone lines, creating cloud-based PBX, and integrating with other communication tools is easier with VoIP technology.
• Advanced features: VoIP offers a wide range of advanced features and functionalities that enhance international communications. These include call forwarding, call routing, auto-attendant, voicemail transcription to email, video calls, and much more. These features facilitate efficient and effective communication with international teams and partners.

By leveraging VoIP for international communications, companies can not only achieve substantial cost savings but also improve global reach, flexibility, and overall communication effectiveness.

How do international VoIP numbers work?

International VoIP numbers work using VoIP technology. Instead of being associated with a traditional phone line, these numbers are linked to cloud-based phone systems. When a call is made to an international VoIP number, the audio signal is transformed into small data packets that are sent over the internet to the desired destination.

These international VoIP numbers can be acquired through cloud telephony service providers or VoIP switchboards. By obtaining an international VoIP number, you can choose the country and area code where you want to have international phone presence. These numbers can be available to receive calls and send text messages or can be used for international call management.

The benefits of using international VoIP numbers include cheaper rates compared to traditional calls, flexibility to receive and make unlimited calls from anywhere with a good internet connection, and the ability to use advanced features such as intelligent call routing and call recording.

It is important to note that, although international VoIP numbers can receive calls and text messages for businesses from anywhere in the world, the quality of communication may be affected by the internet connection quality of both the caller and the receiver.

Ringover's international VoIP solution for your business

Ringover's business communication solution can help implement an international VoIP service in a company in various ways:

• International calls: With Ringover, it is possible to make and receive international calls using IP voice technology. This means that companies can communicate with customers, business partners, and employees worldwide efficiently and economically.
• International phone numbers: Get virtual phone numbers with international area codes so you can establish a local presence in different countries. This makes it easier to communicate with international customers and makes it more convenient for them to contact the company.
• Scalability: Ringover's solution is scalable and adapts to the company's growth needs. This means that as the company expands its international presence, it can easily add more users and phone numbers to the platform seamlessly.
• Advanced features: Ringover offers a wide range of advanced business communication features, such as call waiting, call transfer, call recording, CRM integrations like Salesforce, Hubspot, Zoho, and much more. These features improve the company's productivity and enable better collaboration among teams, even at the international level.

In summary, Ringover is a business communication solution that allows you to implement an international VoIP service in your company, facilitating global communication, providing international phone numbers, offering flexibility when creating your contact centre, and providing advanced features to improve productivity.

Don't wait any longer and take advantage of your free trial to discover for yourself how cloud telephony can help your company's global expansion.