Business Phone Systems

VoIP for Mobile Explained 2026: Best Apps, Benefits & How It Works

By Ally Cox
2 years ago

VoIP for Mobile Explained 2026: Best Apps, Benefits & How It Works

Quick answer

VoIP for mobile allows you to make voice calls, video calls and send messages over the internet using a smartphone or tablet instead of traditional mobile networks.

For UK businesses, mobile VoIP offers:

lower call costs
remote working flexibility
business number access on mobile devices
advanced call features
CRM and Teams integrations

Modern VoIP mobile apps allow staff to make and receive business calls from anywhere using Wi-Fi, 4G or 5G.

👉 Compare mobile VoIP systems & save up to 40% →

Contents

Popular VoIP Apps

What is VoIP for Mobile?

Key Benefits of VoIP for Mobile

How VoIP for Mobile Works

How do we work?

Transparent, impartial, and data‑driven reviews made by a team of expert humans, never AI generated – here’s exactly how Compare Your Business Costs helps you find the best deals from trusted UK providers: click here

Authored by: Ally Cox (Business Technology & B2B Services Specialist 10+ Years’ Experience)

Reviewed by: James Ward (Telecoms Specialist, 12+ Years Experience)

Last Updated: May 2026

Key Takeaways

VoIP for mobile uses the internet rather than mobile networks to make calls
Significantly cheaper than traditional calls, especially international
Works on smartphones and tablets via dedicated VoIP apps
Supports advanced features like video calls, voicemail, conferencing and messaging
Ideal for remote workers, travellers and mobile business teams
Integrates with Cloud PBX, SIP and Microsoft Teams Phone systems

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Popular VoIP Apps

App	Best For	Key Features	Typical Cost
Zoiper	SIP users & advanced setups	SIP calling, video, messaging	Free-£2+/month
Bria Solo	Business users	Voicemail transcription, business calling	Free-£4+/month
Groundwire	CRM integrations	Push notifications, integrations	£5+/month
Linphone	Open-source users	Secure calling, video, SIP support	Free-£3+/month
Microsoft Teams	Hybrid businesses	Business calling, meetings, collaboration	Included with some plans
RingCentral	Business phone systems	Cloud PBX, mobile business calls	£15-£35/user/month
Zoom Phone	Teams already using Zoom	Video & VoIP combined	£10-£20/user/month

What is VoIP for Mobile?

VoIP for mobile allows users to make:

voice calls
video calls
conference calls
business calls
instant messages

using an internet connection rather than traditional phone lines or mobile carrier networks.

Instead of routing calls through standard mobile infrastructure, VoIP converts voice into digital data packets and sends them over the intead, which means users can take business calls from:

smartphones
tablets
laptops
softphone apps

from almost anywhere.

Mobile VoIP vs traditional mobile calls

Feature	Mobile VoIP	Traditional Mobile Calls
Uses internet	Yes	No
Lower international costs	Yes	No
Business integrations	Yes	Limited
Video calling	Yes	Limited
Remote working support	Excellent	Moderate
CRM integration	Yes	Rare
Requires internet stability	Yes	No

Key Benefits of VoIP for Mobile

Cost savings – apps are generally fee or require a much smaller cost per month compared to traditional VoIP.
VoIP for mobile comes with a range of advanced features that enhance communication – such as video calling, conference calls, messaging, voicemail.
With VoIP for mobile, you can make and receive calls from anywhere with an internet connection, and this flexibility is invaluable for remote workers, frequent travelers, and businesses with mobile workforces.
Many VoIP services integrate seamlessly with other business tools and applications, such as CRM systems, email, and project management software..

How VoIP for Mobile Works

Using VoIP on your mobile device is straightforward. Here’s a step-by-step overview of how it works:

Choose your app! Aside from our table above, popular options include Skype, WhatsApp, Zoom, and Google Voice.
Download said app.
Set up or sign into your account.
Connect to the internet.
Start taking and hosting your VoIP calls!

Who Is VoIP for Mobile Best For?

VoIP for mobile is particularly well suited to:

Remote and hybrid workers
Sales teams and field staff
Small businesses and startups
International callers and frequent travellers
Businesses using Cloud PBX or Teams Phone
But it isn’t great in areas with very poor internet connectivity.

FAQ Section

1. What is VoIP for mobile?

VoIP for mobile lets you make calls, video calls and send messages using an internet connection instead of traditional mobile networks.

2. Is VoIP for mobile cheaper than normal phone calls?

Yes. Most VoIP mobile apps are free or cost significantly less than traditional calls, particularly for international and long-distance communication.

3. Does VoIP for mobile require Wi-Fi?

No. VoIP for mobile works over any internet connection, including Wi-Fi, 4G and 5G mobile data. Call quality depends on connection speed and stability.

4. Can VoIP for mobile be used for business?

Yes. Many businesses use mobile VoIP for remote working, sales teams and field staff, often integrating it with Cloud PBX, SIP providers and CRM systems.

5. Is VoIP for mobile secure?

Most reputable VoIP apps use encryption and secure protocols. However, security levels vary, so businesses should choose trusted providers and use strong account controls.

6. Can I keep my business number on a mobile VoIP app?

Yes. Many VoIP providers allow number porting, enabling you to use your business number on a mobile device through a VoIP app.

7. What’s the difference between VoIP apps and mobile carrier calls?

Traditional calls use mobile networks, while VoIP apps use the internet. VoIP offers lower costs, more features, and better flexibility, but relies on internet quality.

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Ally Cox( Blogger )

Hi, I’m Ally Cox, a senior copywriter and blogger at CompareYourBusinessCosts.co.uk, the UK’s trusted platform for comparing business services.
With over a decade of experience in the B2B sector, I specialise in simplifying complex topics like leased lines, VoIP, business energy, HR and payroll solutions, accounting software, and EPOS systems.
Before joining CompareYourBusinessCosts, I worked across various industries, gaining hands-on experience in HR, copywriting, and business operations- from clocking-in systems to card machines and office technology.
My goal is simple: to help UK businesses make informed, confident decisions when choosing products and services that improve efficiency and save money.

compareyourbusinesscosts.co.uk/ally-cox-blogger-compareyourbusinesscosts-co-uk

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VoIP for Mobile Explained 2026: Best Apps, Benefits & How It Works

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