9 Best VoIP Phone Services of 2026

RingCentral RingEX is the most complete replacement for a traditional office phone system on this list. The Core plan, $20 per user per month billed annually or $30 monthly, includes unlimited domestic calling, on-demand call recording, 100 toll-free minutes, 25 business texts per user and HD video meetings for up to 300 people, with the AI Virtual Assistant included. Advanced at $25 adds CRM integrations, multi-site connections, core reporting and 1,000 toll-free minutes, which matters for businesses with branch offices. Ultra at $35 adds 10,000 toll-free minutes, unlimited storage, device analytics and RingCentral Webinar. The trial lets up to five users test the service with two desk phones, which helps when you are deciding whether to keep handsets. The drawbacks are add-on pricing for the AI Receptionist and a big gap between annual and monthly rates. For a business that wants one vendor for calls, texts and meetings, it is the strongest all-round pick.

Dialpad Connect is the strongest choice here for teams that want AI on every call without paying extra for it. The Standard plan, listed at $15 per user per month, includes unlimited calls, HD calls and meetings, built-in messaging, real-time transcripts and instant call summaries, so staff can search what was said instead of taking notes. Voicemails are transcribed too, and Dialpad supports local numbers in more than 50 countries, which helps firms with staff or customers abroad. Pro at $25 adds key CRM integrations, 24/7 customer support and management for multiple offices. Enterprise adds SSO, user access controls, unlimited office locations and a 99.9% uptime commitment, but its price is only available from sales. The limits are that support is not round the clock on Standard and that multi-site admin needs Pro. A 14-day trial makes it easy to test before porting numbers.

Nextiva treats the business phone as part of a wider customer conversation tool. NEXT Core, $15 per user per month billed annually or $23 monthly, includes unlimited voice and video, 100 business texts per user, team collaboration, skills-based routing, a basic CRM with ticketing, shared team and personal inboxes and a customer flow builder. It also includes 50 AI transcriptions and 50 AI summaries, which is enough to try the features but not to cover a busy team. NEXT Engage at $25 adds live chat and a chatbot, 500 texts per user, 2,000 toll-free inbound minutes, SSO with Okta or Microsoft Entra ID and virtual fax. NEXT Scale at $75 adds unlimited texts and AI, 10,000 toll-free minutes and supervisor monitoring. Nextiva also says it handles the move for you, which helps an office switching off old lines. The trade-off is that useful extras such as fax and toll-free minutes sit one tier up.

Zoom Phone is the natural choice for a company that already runs its meetings on Zoom. Calls, meetings and team chat sit in one Zoom Workplace app, so staff do not learn a new tool, and the phone can be bundled with Workplace Pro or Business Plus. The entry Global Select plan gives unlimited calling within one of 48 countries and territories, with metered international calls and an optional add-on for unlimited calling to 19 countries. Zoom lists AI call summaries, voicemail transcripts turned into tasks, Push to Talk, fax from a Zoom Phone number, shared lines, call queues and an auto dialer. For IT teams, it offers PSTN service in more than 49 countries or bring your own carrier, a 99.999% uptime SLA and Local Survivability for failover. Live queue data needs the paid Customer Engagement Pack. Zoom's pricing page showed only zloty from our location, so we could not verify a USD price.

Ooma Office is built for small businesses that want a dependable phone line without a long setup or a contract. Essentials costs $19.95 per user per month with no contract and lists more than 100 standard features, including unlimited calling in the US, Canada, Mexico and Puerto Rico, a virtual receptionist, the mobile app, one free toll-free number and digital fax. That covers the basics an office loses when it drops its landlines. Pro at $24.95 adds the desktop app, up to 250 texts a month, video meetings for 25 people, call recording and enhanced call blocking. Pro Plus at $29.95 adds AI transcriptions and insights, CRM integration, up to 1,000 texts, team chat, hot desking and call queuing. Ooma also sells business phones, which helps offices that want physical handsets. The weak spot is that texting and recording are not in the entry plan, so many teams will end up on Pro.

Quo, from OpenPhone Technologies, is a lightweight business phone that suits small teams who call and text customers from laptops and mobiles. Starter costs $15 per user per month billed annually, or $19 monthly, and includes one new or ported number per user, calling and messaging to US and Canadian numbers, voicemail transcripts, the Quo API and email support. Every plan includes the Sona AI agent with 1,000 free automation credits, which Quo says covers about 10 calls. Business at $23 billed annually adds AI call summaries and transcripts, group calling, custom ring orders, call transfers, phone menus, HubSpot and Salesforce integrations, analytics, automatic call recording and live chat support. Scale adds AI call tags, onboarding and phone support. The limits show for offices replacing a full desk phone system: phone menus and transfers sit on Business, and the service focuses on US and Canadian calling.

Microsoft Teams Phone makes sense for organizations that already run on Microsoft 365 and live in Teams. Teams Phone Standard costs $10 per user per month paid yearly and adds a cloud phone system to Teams, with voice and video calls over the PSTN or the internet and call transfers between devices. The catch is that Standard does not include a phone line. You add service through a Microsoft Calling Plan, Operator Connect or Direct Routing, and Microsoft lists Teams Phone with pay-as-you-go calling at $13, with a US domestic Calling Plan at $17 and with domestic and international calling at $34, all per user per month paid yearly. A separate Teams license is also required. Microsoft backs the service with a 99.999% uptime SLA and offers a one-month trial of Standard. Setup is more involved than the small business services here, so it suits companies with an IT admin who already manages Microsoft 365.

GoTo Connect is a good fit for businesses that rely on traditional desk phone features and want them in the cloud. Every plan lists unlimited auto attendants, recorded greetings, customizable dial plans and ring groups, plus hot desking, E911, a virtual fax manager, voicemail to email, paging, intercom, call recording and multi-site support. Plans include 1,000 shared toll-free minutes, international calling to more than 50 countries and video meetings for up to 250 people, and GoTo offers 24/7 support on all of them. The Customer Experience plan adds WhatsApp, social, web chat, SMS campaigns, a team inbox and an attendant console, and CX Complete bundles the AI Receptionist with 100 credits. Our concern is pricing transparency: from our location the pricing page asked us to contact sales, and AI call summaries and transcripts are add-ons on the lower plans. Check the US price list before comparing it with the others.

Vonage Business Communications sells business phone service per line, with a 12-month promotion that cuts each plan by 30%. Mobile is listed at $19.99 per line per month, or $13.99 during the promotion, plus taxes and fees, and covers the desktop and mobile apps, unlimited domestic calling, SMS and MMS, voicemail, number porting and a virtual receptionist. For this list's audience the key detail is that desk phone support starts on Premium, at $29.99 or $20.99 during the promotion, which also adds team messaging, video meetings for up to 200 people, the VBC App Center with more than 20 integrations and single sign-on. Advanced at $39.99 adds on-demand call recording for 15 hours a month, visual voicemail with transcription and call groups. Vonage is a familiar name with phone and chat support, but once the promotion ends the per-line prices are higher than most rivals here, and taxes and fees are extra.