10 Best VoIP Providers for Small Businesses in the US (2026)

Zoom Phone, from San Jose-based Zoom (Nasdaq: ZM), passed 10 million seats in October 2025 and is one of the best values here if your team already meets on Zoom. The US & Canada Unlimited plan costs $16 per user a month billed annually ($18 monthly) and includes a business number, unlimited calling in the US and Canada, business texting, unlimited auto attendants and phone menus, voicemail transcription and AI call summaries. International calls are metered, and live phone support is reserved for accounts spending more than $200 a month. Best for: teams that want flat-rate US and Canada calling, texting and phone menus in the same app they use for meetings.

Nextiva, the privately held Scottsdale, Arizona company, now sells its business phone service on a platform called NEXT. The Core plan is advertised at $15 per user a month for businesses with 1 to 100 employees that sign a 12-month or longer agreement, and includes unlimited voice and video, 100 texts per user, and allowances of 50 AI call transcriptions and 50 AI summaries; toll-free numbers cost extra, and its XBert AI agent is billed at $1.50 per conversation. Read the terms carefully: the headline price depends on the one-year commitment, and add-ons can carry setup or usage fees. Best for: small businesses that want phone, texting and AI tools in one bundle and are happy to sign a one-year term.

Dialpad, a California company built around AI, puts real-time call transcription and automatic call summaries in every plan, not just the expensive ones. Standard starts at $15 per user a month and includes unlimited calling, AI-powered meetings and built-in messaging; Pro, at $25, adds CRM integrations and 24/7 support. Dialpad notes that prices can vary by region, so confirm your quote. In March 2026 it launched an agentic AI platform, and in November 2026 it announced it was joining forces with Ada, a maker of AI customer-service agents. Best for: teams that want AI transcripts and call summaries without paying for a premium tier.

Ooma, the publicly traded company behind Ooma Office, keeps business calling simple and contract-free. Essentials costs $19.95 per user a month with no contract and includes unlimited calls to the US, Canada, Mexico and Puerto Rico, a free toll-free number and a virtual receptionist that greets and routes callers. Texting (250 messages a month), video meetings and call recording start with Pro at $24.95, and AI transcriptions with Pro Plus at $29.95. Expect a one-time $29.95 activation fee, plus taxes and fees. Best for: very small offices that want a no-contract phone line with a receptionist and a toll-free number.

Google Voice is the cheapest way for a Google Workspace team to add business phone lines. Starter costs $10 per user a month on top of Workspace for up to 10 users and includes one number that rings on all your devices, unlimited domestic calling and US texting, voicemail transcription and, since November 2025, desk phone support and on-demand call recording. Starter has no auto attendant; that, ring groups and unlimited users come with Standard at $20 a month. International calls are billed per minute. Best for: Google Workspace teams of 10 or fewer that need simple, inexpensive business lines.

Microsoft Teams Phone turns the Teams app your staff already use into a business phone. Teams Phone Standard is a $10 per user a month add-on, paid yearly, to an eligible Microsoft 365 plan (up from $8 in April 2025), but it includes no phone number or outside calling: you add a Microsoft Calling Plan, which in the US gives users a pooled allowance of domestic minutes rather than unlimited calling, or connect a third-party operator. Auto attendants and call queues run on separate resource accounts, so setup takes more IT work than an all-in-one service. Best for: businesses already paying for Microsoft 365 that want calling inside Teams.

Quo, called OpenPhone until September 2025, when it rebranded and raised $105 million, is built for small teams that call and text customers from their phones and laptops. Starter costs $15 per user a month billed annually ($19 monthly) and includes a local or toll-free number for each user, unlimited calling and texting in the US and Canada under a fair-use policy, voicemail transcripts and its Sona AI agent with credits for about 10 calls. Phone menus, call transfers and automatic recording need a higher plan, extra numbers cost $5 a month, and business texting requires a one-time $19.50 carrier registration plus $1.50–$3 a month. Best for: small teams that text customers a lot and want simple per-user pricing.

GoTo Connect comes from Boston-based GoTo, the company formerly known as LogMeIn, and is a full business phone system rather than an app-only line: even the base Phone System plan includes unlimited auto attendants and call queues, local, toll-free and vanity numbers, texting, call recording, video meetings for up to 250 people and free calls to 50 countries. It doesn’t publish prices, so you need a quote, and toll-free minutes are capped at 1,000 shared across the account. Its AI Receptionist, an add-on, became generally available in March 2025. Best for: multi-person offices that need phone menus, call queues and international calling and don’t mind talking to sales.

Grasshopper, founded in 2003, gives solo owners and very small teams a professional business number that rings on the phones they already carry. True Solo costs $14 a month billed annually ($18 monthly) for one user, one number and one extension, priced per account rather than per user, and Solo Plus, at $25 a month billed annually, allows unlimited users and three extensions. Service is available only in the US and Canada, and it is a virtual phone line rather than a full office phone system. Best for: freelancers and solo business owners who want a separate business number without new hardware.