Meta Description: Discover the top 10 business phone systems (VoIP) tools for 2025. Compare features, pros, cons, and pricing to find the best VoIP software for your business.

Introduction

In 2025, Voice over Internet Protocol (VoIP) systems have become the backbone of business communication, replacing outdated landlines with flexible, cloud-based solutions. These systems transmit voice and data over the internet, offering cost-effective, scalable, and feature-rich alternatives for businesses of all sizes. VoIP tools enable seamless calling, video conferencing, messaging, and integrations with platforms like CRMs, making them essential for modern workflows. With remote work and global operations on the rise, choosing the right VoIP system is critical for enhancing productivity and customer experience. When selecting a VoIP tool, prioritize call quality, integrations, scalability, ease of use, and pricing that aligns with your budget. This guide explores the top 10 business phone systems (VoIP) tools for 2025, detailing their features, pros, cons, and a comparison to help you make an informed decision.

Top 10 Business Phone Systems (VoIP) Tools for 2025

1. RingCentral

RingCentral Logo/Brand: RingCentral RingEX
Description: RingCentral is a leading VoIP provider offering a robust unified communications platform for businesses of all sizes, ideal for teams needing advanced call management and integrations.
Key Features:

• Unlimited calling and SMS in the US and Canada.
• Advanced call management (IVR, call queues, call park).
• Video conferencing with AI-powered summaries.
• Integrations with Salesforce, HubSpot, and Microsoft 365.
• Mobile and desktop apps for remote access.
• Real-time analytics and call monitoring.
• Toll-free numbers and virtual faxing.
  Pros:
• Comprehensive feature set, even on base plans.
• Seamless CRM integrations for sales teams.
• Reliable call quality with 24/7 support.
  Cons:
• Higher-tier plans can be pricey for small businesses.
• Customer support reviews are mixed.
• Some advanced AI tools require add-ons.
  Official Website: RingCentral

2. Nextiva

Nextiva Logo/Brand: Nextiva
Description: Nextiva provides a powerful VoIP solution with a focus on customer experience, ideal for small to medium businesses needing multi-channel communication.
Key Features:

• Unlimited calling in the US and Canada.
• AI-powered voicemail transcription and call pop.
• Integrations with Salesforce, Zendesk, and Slack.
• Mobile apps for remote work.
• Live chat and social media messaging support.
• Toll-free numbers and call routing.
• Real-time analytics for call performance.
  Pros:
• Excellent onboarding and customer support.
• Unified platform for voice, text, and video.
• Budget-friendly for small teams.
  Cons:
• Limited video meeting duration on lower plans.
• Some integrations require higher-tier plans.
• International calling rates can add up.
  Official Website: Nextiva

3. Zoom Phone

Zoom Logo/Brand: Zoom Phone
Description: Zoom Phone integrates seamlessly with Zoom’s video conferencing platform, perfect for businesses already using Zoom for meetings and needing robust VoIP features.
Key Features:

• Unlimited domestic calling (select plans).
• Auto-attendants and call queues.
• Integration with Google Workspace and Salesforce.
• One-click transition from chat to voice or video.
• Mobile and desktop softphone apps.
• Advanced video meeting tools (virtual backgrounds, breakout rooms).
• Call recording and analytics.
  Pros:
• Affordable pricing starting at $10/user/month.
• Seamless integration with Zoom Meetings.
• Strong for remote and hybrid teams.
  Cons:
• Limited international calling on base plans.
• Fewer integrations than RingCentral or Nextiva.
• Video-heavy focus may not suit all businesses.
  Official Website: Zoom Phone

4. Intermedia Unite

Intermedia Logo/Brand: Intermedia Unite
Description: Intermedia Unite is an all-in-one VoIP platform with strong collaboration tools, ideal for businesses seeking simplicity without sacrificing features.
Key Features:

• Unlimited calling, SMS, and faxing.
• HD audio/video conferencing.
• Team messaging and file sharing.
• Auto-attendant and call routing.
• Free device with standard plan.
• Integrations with Microsoft Teams and Salesforce.
• Mobile and desktop apps.
  Pros:
• Comprehensive features on base plans.
• Transparent pricing with no contracts.
• Easy setup and management.
  Cons:
• Toll-free numbers cost extra.
• Limited advanced AI features.
• Fewer integrations than competitors.
  Official Website: Intermedia

5. Ooma Office

Ooma Logo/Brand: Ooma Office
Description: Ooma Office is a cost-effective VoIP solution tailored for small businesses, offering simple setup and essential communication tools.
Key Features:

• Unlimited calling in the US, Canada, Mexico, and Puerto Rico.
• Free toll-free number with 500 minutes.
• Virtual receptionist and ring groups.
• Mobile app for remote calling.
• Video conferencing (Pro plan and above).
• Call forwarding and voicemail-to-email.
• Basic analytics on higher-tier plans.
  Pros:
• Affordable pricing starting at $19.95/user/month.
• No annual contracts required.
• Free toll-free number included.
  Cons:
• Limited video conferencing features.
• Outdated interface compared to competitors.
• Lacks advanced AI tools.
  Official Website: Ooma

6. OpenPhone

OpenPhone Logo/Brand: OpenPhone
Description: OpenPhone is a modern VoIP platform designed for startups and remote teams, emphasizing texting and shared phone numbers.
Key Features:

• Unlimited calling and texting in the US and Canada.
• Shared phone numbers for team collaboration.
• Auto-replies and AI message responses.
• Integrations with Slack, HubSpot, and Zapier.
• Mobile and desktop apps.
• Call recording and phone menus.
• International calling with transparent rates.
  Pros:
• Intuitive interface and easy setup.
• Strong texting capabilities for customer engagement.
• Affordable for small teams.
  Cons:
• Limited advanced call center features.
• CRM integrations require higher-tier plans.
• No emergency calling (e.g., 911).
  Official Website: OpenPhone

7. Dialpad

Dialpad Logo/Brand: Dialpad
Description: Dialpad leverages AI to enhance VoIP communication, ideal for larger businesses needing advanced analytics and call management.
Key Features:

• AI-powered call transcriptions and summaries.
• Unlimited domestic calling.
• Integrations with Google Workspace and Microsoft Teams.
• Mobile and desktop softphone apps.
• Call routing and IVR menus.
• Real-time analytics and coaching tools.
• Video conferencing for up to 10 participants.
  Pros:
• Strong AI features for call insights.
• Scalable for larger organizations.
• Reliable customer support.
  Cons:
• Limited video meeting capabilities.
• Higher pricing for advanced features.
• Occasional glitches reported.
  Official Website: Dialpad

8. 8×8

8×8 Logo/Brand: 8×8
Description: 8×8 offers a unified communications platform with a focus on call quality, suitable for businesses needing global support and multi-channel tools.
Key Features:

• Unlimited calling in up to 48 countries.
• HD voice and video conferencing.
• Call queues and real-time analytics.
• Integrations with Microsoft Teams and Salesforce.
• Mobile and desktop apps.
• AI-driven call management tools.
• Global support for multi-region businesses.
  Pros:
• Excellent call quality and reliability.
• Strong global calling capabilities.
• Scalable for enterprise needs.
  Cons:
• Limited SMS on lower-tier plans.
• Outdated website and sales process.
• Pricing less transparent than competitors.
  Official Website: 8×8

9. GoTo Connect

GoTo Logo/Brand: GoTo Connect
Description: GoTo Connect is a cloud-based VoIP platform with intuitive call routing, ideal for small to medium businesses needing flexible communication tools.
Key Features:

• Unlimited calling in the US and Canada.
• Drag-and-drop call routing editor.
• Video conferencing and screen sharing.
• Mobile and desktop apps.
• Integrations with Salesforce and HubSpot.
• Call queues and ring groups.
• Voicemail-to-email and call forwarding.
  Pros:
• Easy-to-use call routing tools.
• Affordable for small businesses.
• Reliable performance.
  Cons:
• Limited advanced AI features.
• Fewer integrations than RingCentral.
• Video meetings lack interactive tools.
  Official Website: GoTo Connect

10. Grasshopper

Grasshopper Logo/Brand: Grasshopper
Description: Grasshopper is a virtual phone system designed for solopreneurs and small teams, offering affordable VoIP with mobile-first features.
Key Features:

• Unlimited calling and SMS in the US.
• Virtual phone numbers and extensions.
• Call forwarding and voicemail-to-email.
• Mobile and desktop apps.
• Instant text responses and custom greetings.
• No hardware or desk phones required.
• Business texting and call transfers.
  Pros:
• Budget-friendly, starting at $14/month.
• Simple setup for solo users.
• No hardware costs.
  Cons:
• Lacks advanced routing features like IVR.
• No video conferencing capabilities.
• Limited integrations.
  Official Website: Grasshopper

Comparison Table

Which Business Phone Systems (VoIP) Tool is Right for You?

Choosing the right VoIP tool depends on your business size, industry, budget, and specific needs. Here’s a decision-making guide:

• Solopreneurs and Freelancers: Grasshopper is ideal for its low cost ($14/month) and mobile-first design, perfect for managing calls and texts without hardware. OpenPhone is another great choice for startups needing texting and shared numbers.
• Small Businesses (1–10 Employees): Ooma Office and GoTo Connect offer affordable plans ($19.95–$24/user/month) with essential features like virtual receptionists and call routing, ideal for budget-conscious teams.
• Medium Businesses (10–50 Employees): Nextiva and Intermedia Unite provide robust features like CRM integrations and team messaging, with transparent pricing and no contracts, suiting growing teams.
• Large Businesses (50+ Employees): RingCentral and Dialpad excel with advanced call management, AI tools, and scalability, perfect for enterprises with high call volumes or global operations.
• Remote Teams: Zoom Phone and OpenPhone shine for remote work, offering seamless mobile apps and integrations with collaboration tools like Slack.
• Sales and Customer Service Teams: Nextiva and RingCentral stand out with CRM integrations and real-time analytics, enhancing customer interactions.
• Global Businesses: 8×8 and RingCentral support international calling across many countries, ideal for businesses with a global presence.
• Budget-Conscious Teams: Zoom Phone ($10/user/month) and Grasshopper ($14/month) offer the lowest entry points without sacrificing core features.

Evaluate your call volume, integration needs, and whether you prioritize texting, video, or AI features. Most providers offer free trials or demos, so test a few to find the best fit.

Conclusion

In 2025, business phone systems (VoIP) tools are critical for streamlining communication, reducing costs, and enhancing customer experiences. From RingCentral’s robust call management to OpenPhone’s texting prowess, these platforms cater to diverse business needs. The VoIP landscape is evolving with AI-driven features, seamless integrations, and mobile-first designs, making it easier for businesses to stay connected globally. Whether you’re a solopreneur or a large enterprise, there’s a VoIP solution tailored for you. Take advantage of free trials or demos to test these tools and ensure they align with your workflow. Investing in the right VoIP system now will future-proof your communication strategy for years to come.

FAQs

What is a VoIP business phone system?
A VoIP (Voice over Internet Protocol) system allows businesses to make and receive calls over the internet, offering features like call routing, voicemail-to-email, and integrations with CRMs, unlike traditional landlines.

How much do VoIP systems cost in 2025?
VoIP systems range from $10–$75 per user per month, depending on features and scale. Grasshopper starts at $14/month, while premium plans like RingCentral can reach $65/user/month for advanced features.

Can VoIP systems support remote teams?
Yes, most VoIP systems, like Zoom Phone and OpenPhone, offer mobile and desktop apps, enabling remote teams to make calls, send texts, and join video meetings from anywhere with an internet connection.

Do VoIP systems integrate with other business tools?
Many VoIP systems, such as RingCentral, Nextiva, and Dialpad, integrate with CRMs (Salesforce, HubSpot), collaboration tools (Slack, Microsoft Teams), and productivity apps (Google Workspace) to streamline workflows.

Are VoIP systems reliable for business use?
VoIP systems are highly reliable with a stable internet connection, offering HD call quality and uptime. However, call quality depends on bandwidth, so ensure your network supports your team’s needs.