8 Best Business VoIP providers in 2025 (with top features)

VOIP Providers

You’re running an E-commerce business. You’ve got orders piling up, a few new employees, and a customer service phone that never stops ringing. 

Now, you’re worried your old landline is costing too much, dropping calls, and making you sound like a robot to your customers due to low voice quality. 

You’re looking for something that helps you save money, scale quickly, and keep customers happy. 

That’s where a business  VoIP phone system comes in.

In this post, you’ll learn about the best VoIP phone solutions available in 2025. We’ll dig into how VoIP works, why it’s often more affordable than traditional phone lines, and which providers offer the right solution for your use case. 

What is a VoIP Phone System?​

VoIP (Voice over Internet Protocol) is a term for making phone calls over the Internet instead of using old-school phone lines, similar to how emails or messages are transmitted.

You talk into your phone, and your voice becomes data that zips across the internet. Then, on the other side, someone hears your voice in real time.

VoIP is very useful for businesses. A research report by  Spherical Insights & Consulting projects that the global VoIP market size will expand from $40.2 billion in 2022 to $108.5 billion by 2032.

Why? Because VoIP helps you cut costs, add excellent calling features, and keep everyone in your team connected from anywhere with a Wi-Fi connection or cellular data.

How VoIP Actually Works (Behind the Scenes)​

Imagine you’re placing a call to a prospect who’s in another country. You pick up your VoIP phone, which is connected to the internet, (or open a phone app on your computer). Here’s what’s happening under the hood:

1. Registration

Your VoIP phone or software says, “Hi, I’m here and ready,” to a special server on the Internet. The server saves your information so it can send calls to you.

2. Establishing a Connection

When you dial a number, the server checks where that person is, whether they’re on another VoIP line or a regular phone line. Then, it sets up a path for your voices to travel back and forth.

3. Sending and Receiving Voice Data

Your words become little pieces of data, like sending a bunch of tiny letters. These get sent through the internet at lightning speed. Then, your prospect’s phone or computer pieces them back together and plays your voice out loud.

4. Ending the Call

When you’re done talking, you (or your prospect) hang up. A message goes to the server saying “We’re done here,” and the connection closes.

Benefits of Using VoIP for Businesses​

Why do businesses swear by VoIP? Here are a few reasons:

1. Cost Savings

You can save up to 90% on international call costs using VoIP because you don’t pay hefty long-distance fees. You also save on hardware and maintenance costs in the long run.

2. Scalability

Adding a new person to your team? Give them a VoIP extension with a few clicks. You don’t need to install new phone lines. Scaling your team down is equally easy.

3. Security

Many VoIP providers include encryption and firewalls. That means your calls are protected from unauthorized access.

4. Advanced Call-Handling Features

VoIP often includes call recording,  routing, and analytics, which traditional phone systems usually charge extra for.

5. Global Connectivity

With VoIP, you can connect team members in Tokyo, New York, and Berlin on the same system, enabling seamless communication and collaboration across borders as if everyone were sharing an office.

Signs You Need to Update or Replace Your Old Business VoIP Phone System​

Already have VoIP but fear it might be falling short? Check these signs:

1. Frequent Call Drops and Poor Call Quality

If you often hear echoes or crackling noises, your current system might be outdated. Dropped calls and poor voice quality make your business look unprofessional, lower customer satisfaction and can cost you clients.

2. Lack of Essential Features

Lacking essential features like call recording, advanced security or automated call routing could hold your business back. Without these tools, you may struggle to keep up with competitors who offer a more seamless customer experience.

3. High Operational Costs

Older VoIP setups sometimes come with overpriced plans, hidden upgrade fees, or expensive add-ons.

4. Scalability Issues

If you can’t quickly add or remove users, you risk slowing down growth or paying for licenses you’re not even using.

5. Inadequate Customer Support

Imagine you have to call a high-value lead in an hour, and your phone system stops working. If your provider’s support is unresponsive, slow to resolve issues, or MIA after 6 PM, that’s a problem.

6. Security Concerns

If your VoIP system doesn’t have encryption or up-to-date security patches, you risk data leaks.

How to Choose the Right VoIP Provider​

Picking a VoIP provider is a big decision. Here’s a quick checklist to help you make the right choice:

1. Assess Your Business Needs

Do you need basic calling, or call recordings, analytics, and integrations with a CRM?

2. Evaluate Cost and Pricing Plans

Check if the plan is a pay-per-user or a monthly bundle. If the vendor has tiers, compare which one offers the features you need. 

3. Identify Essential Features

For instance, do you need texting, video calling, or an  interactive voice response (IVR) menu?

4. Check Reliability and Call Quality

Look for providers who offer HD voice. An uptime guarantee of 99.99% will ensure your communication stays uninterrupted.

5. Review Customer Support and Service

It’s nice to have 24/7 support, especially if you operate globally or outside of your vendor’s business hours. Evaluate also the type of support and if it’s based on your pricing plan –  some providers only offer chat or tickets for their basic plans, while others have more options, like phone and email.

6. Scalability and Flexibility

Make sure your VoIP can grow with you. Scalability and flexibility are especially important for seasonal businesses or those with varying call center demand.

7. Security Features

Encryption, password protection, and secure data centers keep your calls and customer data private.

Comparison Chart of the 8 Best VoIP Providers​

Below is a quick snapshot of the top eight solutions we’ll explore. Each offers unique strengths.

Provider
Best For
Key Features
Rating (GetApp)

Businesses of all sizes

High voice quality, skill-based routing, IVR, CRM integration

4.9

RingCentral logo symbol

Large-scale call centers & enterprises

Skills-based routing, auto-attendant

4.3

8x8 logo symbol

Businesses looking for strong security

Encryption, compliance, IVR

4.0

Nextiva logo symbol

Businesses looking for call analytics & remote conferencing

Auto-attendant, advanced analytics

4.5

Small & medium businesses

Unlimited calls, AI assistant

4.3

Home offices & startups

Virtual receptionist, HD audio

4.5

Businesses looking for enterprise-level features with global coverage

Power dialer, sentiment analysis

4.4

Distributed teams

Call transcripts, voice intelligence

4.2

Top 8 Best Business VoIP Providers in 2025

Below is a quick snapshot of the top eight solutions we’ll explore. Each offers unique strengths.

Best For: Businesses of all sizes looking for a flexible cloud-based communication

Squaretalk is a cloud-based communications tool designed to speed up customer interactions. It offers VoIP services, SMS messaging, and smooth integrations with CRMs like  Salesforce and  Zoho

That means your team can handle calls and messages in one spot instead of juggling multiple platforms. 

Squaretalk also features call routing, IVR, and real-time analytics, which help you track performance.

Squaretalk is very easy to customize. You can set up skill-based routing so calls go directly to the right agent. You can also record calls to facilitate training and compliance needs. Squaretalk’s design is built for growth, so as your company expands, you can easily add more agents or features.

Top Features​

Pros​

  • High-quality VoIP calls with open SIP protocol
  • Easy-to-use interface
  • A rich set of call-handling features
  • Friendly, responsive customer support
  • Integrations with leading CRMs

Cons

  • Some advanced features may take a bit of time to learn

Ratings​

  • G2 Rating: 4.7/5
  • GetApp Rating: 4.9/5
  • Capterra Rating: 4.9/5

Best For: Call center operations for larger organizations

RingCentral is popular among call centers that handle large call volumes daily. It offers advanced call management tools.

The software also supports multi-level IVR menus, so customers can quickly find the right department. Teams can also view real-time metrics and customize dashboards.

RingCentral’s mobile app offers HD calling, team messaging, and file sharing. This helps remote or traveling employees stay productive. 

Top Features​

  • Skills-based call routing
  • Automatic call recording
  • Multi-level auto attendant
  • Videoconferencing
  • Advanced call analytics

Pros

  • Unlimited calling, conferencing, and messaging
  • Mobile-friendly
  • Quick to set up for teams
  • Strong security measures

Cons​

  • Pricey for small businesses
  • Sometimes call clarity isn’t consistent
  • Missing certain in-depth analytics, like sentiment analysis

Ratings​

  • G2 Rating: 4.0/5
  • GetApp Rating: 4.3/5
  • Capterra Rating: 4.3/5

Best For: Small and mid-sized businesses focused on security

8×8 stands out for its enterprise-level security. It complies with  GDPR HIPAA, and other privacy regulations. It uses  Secure Real-Time Transport Protocol (SRTP) for encrypted voice and video calls. 

That means your calls and customer data stay private. These security perks might be vital if you’re a healthcare clinic or a law office.

8×8 also provides multi-factor authentication and real-time monitoring. Their platform offers HD voice, voicemail transcription, and local phone numbers in multiple countries.

Top features

  • Multi-factor authentication
  • Global calling coverage
  • Video conferencing
  • IVR 
  • Analytics and reporting
  • Group intercom paging

Pros

  • Simple setup
  • HD conferencing for remote teams
  • Complies with major privacy standards

Cons

  • Some users struggle to operate the platform
  • Integration options can be limited
  • Some advanced features are limited to the Contact Center plans

Ratings

  • G2 Rating: 4.2/5
  • GetApp Rating: 4.0/5
  • Capterra Rating: 4.0/5

Best For: Businesses needing powerful call analytics and remote conferencing

Nextiva is known for its robust call analytics. You can easily see call volumes, identify trends, and track  customer satisfaction (CSAT)

It also has auto-attendants, voicemail-to-email, and video calls. The interface is user-friendly, which helps your team onboard quickly.

Many enterprises trust Nextiva for security and compliance.

Top features

  • Unlimited calling
  • Video conferencing
  • Auto attendant
  • Screen sharing
  • Call routing and forwarding
  • Advanced voicemail

Pros

  • Detailed analytics for easy insight
  • Modern dashboard design
  • Unlimited texting on top-tier plans
  • Sturdy features for enterprise needs

Cons

  • Missing certain mainstream integrations (e.g., Slack or Zapier)
  • No multi-factor authentication (MFA)
  • Pricier than other VoIP services

Ratings

  • G2 Rating: 4.5/5
  • GetApp Rating: 4.5/5
  • Capterra Rating: 4.6/5

Best For: Small and medium-sized businesses

Vonage offers flexible price plans and over 50 features, including voicemail, team messaging, and unlimited calling. 

If you’re looking for an AI-based virtual assistant, Vonage has you covered. The assistant can understand voice commands to route calls or perform tasks.

Vonage’s most significant advantage is its well-known name. Users can choose Basic, Premium, or Advanced packages to suit their needs.

Top features

  • CRM integrations
  • Voice and video conferencing
  • AI-based Virtual Receptionist
  • Extended call forwarding
  • Team messaging
  • Voicemail Plus

Pros

  • Friendly customer service
  • Easy to grow with your team
  • Solid AI features for call handling
  • A known brand with a broad reach

Cons

  • 24/7 customer support isn’t always available
  • Hidden fees sometimes pop up
  • Call quality can vary

Ratings

  • G2 Rating: 4.1/5
  • GetApp Rating: 4.3/5
  • Capterra Rating: 4.3/5

Best For: Home-based businesses and small teams

Ooma offers features like a virtual receptionist and ring groups so you can direct calls to specific departments. 

The user experience is designed to be plug-and-play.

Ooma’s biggest draws include free local or toll-free numbers, HD audio, and a mobile app that lets you take calls on the go.

Top features

  • Virtual receptionist (auto-attendant)
  • Ring groups
  • HD Audio
  • Video conferencing
  • Call monitoring
  • Enhanced call blocking

Pros

  • 800 free toll-free numbers
  • User-friendly interface
  • Over 50 call features
  • Competitive international call rates

Cons

  • Limited third-party integrations
  • Might not suit large-scale call centers
  • Some users experienced connectivity issues

Ratings

  • G2 Rating: 4.6/5
  • GetApp Rating: 4.5/5
  • Capterra Rating: 4.5/5

Best For: Enterprise businesses that need global coverage

CallHippo gives you virtual phone numbers worldwide, real-time analytics, and advanced routing. 

You can see which time zone or region is ideal for calling your leads. The platform also has a sentiment analysis feature to gauge customers’ feelings during calls.

CallHippo integrates nicely with CRMs like Zoho or HubSpot. If you’re growing fast and need an enterprise-level phone system, CallHippo might be a fit and an affordable choice for many global teams.

Top features

  • Power dialer
  • Real-time call monitoring and analytics
  • Call recording
  • Call forwarding
  • Call queuing
  • Sentiment analysis

Pros

  • Quick, responsible customer support
  • Easy to navigate dashboard
  • Affordable compared to some competitors
  • Straightforward to set up

Cons

  • Limited international calling capabilities in some regions
  • Occasional dropped calls
  • Reports and analytics are less customizable

Ratings​

  • G2 Rating: 4.4/5
  • GetApp Rating: 4.4/5
  • Capterra Rating: 4.4/5

Best For: Teams looking for AI-powered VoIP solutions

Dialpad offers phone calls, video meetings, and messaging in one app. The AI engine can transcribe calls in real time and highlight action items. 

Dialpad’s dual-cloud architecture lets you make crystal clear calls across different divides – cell phone, laptop, or IP desk phone. Besides, you get unlimited call recordings on even the least expensive plan which helps customer support training, sales rep coaching and more.

Top Features

  • AI-based conversation insights
  • Real-time transcription
  • Call routing
  • Customer scoring
  • Unlimited call recording
  • Voice Intelligence

Pros

  • Useful AI highlights for better coaching
  • Integrations with popular CRMs
  • Unlimited calling and texting in the U.S. and Canada
  • Suitable for remote teams

Cons

  • No predictive dialer for telemarketing
  • The user interface can be confusing
  • Certain advanced text features are add-ons

Ratings

  • G2 Rating: 4.4/5
  • GetApp Rating: 4.2/5
  • Capterra Rating: 4.2/5

Conclusion​

You’ve just explored eight top-notch VoIP providers that will rule the market in 2025. By now, you know that a VoIP system can lower costs, improve call quality, and bring your team together—even when everyone’s working in different zip codes. 

Whether you’re a small real estate business , a marketing research company, or a large financial institution, there’s a VoIP solution that fits your goals.

If you need a flexible, reliable, and user-friendly VoIP phone system, Squaretalk has you covered.  Let’s discuss your business needs and see how quickly you can scale up, save money, and start enjoying crystal-clear voice quality.

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Yulia Vushkova

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