10 Best Business VoIP Providers

RingCentral

RingCentral is a leading unified communications and VoIP provider offering business phone, video meetings, team messaging, and contact center tools in one cloud platform. It’s designed for companies that want scalable, feature-rich communications without managing on-premises hardware. Core features include unlimited calling in the U.S. and Canada, IVR/auto attendants, call queues, AI-powered call transcripts and summaries, and integrations with hundreds of business apps.

Pros:

Very robust feature set and strong AI tools

Excellent integrations and collaboration features

Scales well from small teams to large enterprises

Cons:

Pricing can be higher than some competitors

Advanced features and contact center tools are locked to upper-tier plans

Best for: Businesses that prioritize reliability, collaboration, and advanced call handling, and are willing to pay a bit more for a full-featured, scalable platform.

Vonage

Vonage is a long-standing VoIP and unified communications provider offering business phone, video meetings, messaging, and contact center solutions in the cloud. Its Vonage Business Communications (VBC) platform focuses on flexibility and customization, with 40+ voice and UC features, mobile and desktop apps, and strong integrations. It also offers communications APIs and a full contact center stack for companies that want to embed calling, SMS, and video into their own apps.

Pros:

Flexible, scalable VoIP and UCaaS with lots of add-ons and integrations

Solid mobile apps and intuitive admin portal

Strong APIs and contact center options for custom communication workflows

Cons:

Pricing climbs as you add advanced features and add-ons

No true free plan; best value often at higher tiers

Some users report occasional call quality or app experience issues

Best for: Small to mid-sized businesses and growing companies that want a customizable, API-friendly communications platform with room to expand into contact center and omnichannel experiences over time.

Ooma

Ooma is a cloud-based VoIP and business phone provider built primarily for small and traditional brick-and-mortar businesses moving off landlines. Its Ooma Office platform focuses on simplicity and value: contract-free plans starting around $19.95 per user per month, 100+ built-in features, and plug-and-play hardware plus mobile and desktop apps. Core tools include a virtual receptionist, ring groups, digital/analog fax, music on hold, and unlimited calling in the U.S. and Canada (and often Mexico/Puerto Rico, depending on plan).

Very easy setup and admin, even for teams without IT staff

Affordable, transparent pricing with no long-term contracts

Rich feature set in base plans (virtual receptionist, fax, mobile/desktop apps, etc.)

Cons:

Fewer third-party integrations than many larger competitors

Some collaboration tools, SMS, and video features are only in higher-tier plans

Less suited for enterprises needing advanced analytics or AI-driven features 

Best for: Cost-conscious small and midsize businesses, or traditional offices transitioning from landlines to VoIP, that want an easy, reliable system with strong core calling features rather than deep integrations or enterprise-grade analytics.