Best Business Phone Systems (2026): Top 9 Compared

RingEX is RingCentral's business communications product, which the vendor presents as a single app for calls, meetings and chat. It sits beside RingCentral's separate contact centre product, RingCX, which is priced from $65 per user and is covered on the AI call center software page.

The pricing page describes three tiers. Core includes unlimited domestic calling, on-demand call recording, 100 toll-free minutes, 25 SMS per user per month and HD meetings with up to 300 participants, plus an AI Virtual Assistant for captions, transcriptions, notes and summaries. Advanced adds CRM integrations, the ability to connect multiple sites, core reporting, 1,000 toll-free minutes and 100 SMS per user. Ultra adds 10,000 toll-free minutes, 200 SMS per user, RingCentral Webinar, historical and real-time insights, unlimited storage and device analytics. A Customer Engagement Bundle adds a shared SMS inbox, reply templates, SMS compliance management and queue features such as callback from queue and wait-time alerts.

Add-ons listed on the same page include AI Receptionist, which answers and routes calls, books appointments and captures leads, and Conversational Intelligence for analysing sales calls. Additional local or toll-free numbers are listed at $4.99 per month and vanity numbers carry a $30 one-time fee. The page also lists LLM plugins and MCP connectors in the Core tier. Buyers should confirm which prices apply to their user count, since the page states that pricing changes with the number of users.

Nextiva sells business phone service as part of a wider communications and customer experience platform. Its pricing page states that every plan includes business phone and team messaging, and that AI can be added when a customer is ready.

For small businesses there are three plans. Core covers inbound and outbound voice, business SMS, video meetings, screen and file sharing, call routing, team chat and a mobile app. Engage adds customer-to-team SMS, a toll-free number and minutes, advanced reporting, an inbound call centre, and live chat with a chatbot. Scale is described as a full customer experience platform, adding voice and web chat, blended inbound and outbound calling, AI transcription and summaries, skills-based routing and journey orchestration.

A separate enterprise track covers contact centres. Essential is priced from $75 per agent per month and includes omnichannel capabilities, journey orchestration and skills-based routing. Professional adds advanced self-service, real-time supervisor support, PCI-DSS secure payment and progressive and predictive dialling. Premium adds workforce management, unlimited channels and in-conversation payments.

Every plan lists XBert, Nextiva's AI receptionist, as an add-on for answering calls, texts and chats around the clock. The page also advertises AI plans with unlimited calling from $99 per month. Nextiva states that it handles number migration for new customers. Buyers comparing Core with Engage should check which features they need, since toll-free numbers and reporting are the main differences.

Dialpad Connect is Dialpad's business phone product, described on the pricing page as an AI-powered communications platform for calls, messages and meetings. Dialpad sells separate products for contact centres, outbound sales and autonomous AI agents; the AI agent product is covered on the AI contact center platforms page.

All three Connect plans include unlimited calling, HD voice, one local number per user, a multi-level auto attendant, visual voicemail, call recording, custom call routing, three-way calling, spam call detection and number porting for local and toll-free numbers. Messaging covers SMS, MMS and team messaging with threading and file search. Meetings are unlimited, with up to 150 participants and a five-hour maximum duration. Real-time call transcription, voicemail transcription and real-time analytics are listed on every plan, as is a Google Workspace integration.

The step to Pro adds hold queues, extra local or international numbers, up to 25 ring groups and 10 offices, quality-of-service reports, open APIs and webhooks, and integrations with Salesforce, Microsoft Teams, HubSpot, ServiceNow, Zapier, Zendesk and Slack. Enterprise adds extensions, unlimited ring groups and offices, and single sign-on through Okta, Azure and OneLogin. Internet fax, meeting dial-in numbers and 1,500-participant meetings are add-ons on all plans. The page lists HIPAA and BAA compliance across the plan table. Buyers should note the seat minimums, which change the true entry cost of Pro and Enterprise.

Quo is the current name of the business phone product previously sold as OpenPhone; the Quo pricing page still refers to an OpenPhone workspace in its plan notes. The product combines calling and texting on shared business numbers, and the page lists a Sona AI agent and a ChatGPT and Claude MCP connector on every plan.

All plans include one new or ported local or toll-free number per user, calling and messaging to US and Canadian numbers under a fair usage policy, voicemail transcripts, the Quo API and email ticket support. Additional numbers are listed at $5 per month each, and number porting is free. Business adds AI call summaries and transcripts, group calling, custom ring orders, call transfers, HubSpot and Salesforce integrations, phone menus, analytics and reporting, automatic call recording and live chat support. Scale adds AI call tags, dedicated onboarding, priority live chat and email support, and inbound phone support.

Sona is Quo's AI agent for answering calls. Its usage is billed in credits, at 100 credits per call. Every plan includes 1,000 credits, which the page equates to 10 calls a month. Paid tiers add 4,000 to 60,000 credits for $25 to $199 per month, with overage per call falling from $1.00 on the free tier to $0.45 on the largest. The page offers a seven-day free trial. Taxes and fees are added at checkout, and the page states that all prices are in US dollars.

Aircall describes itself as an AI-powered cloud business phone system for sales and support teams, and its structured pricing data states 100-plus CRM and helpdesk integrations and 99.95% uptime. The pricing page groups its offer into three plans and a set of AI and analytics add-ons.

Essentials includes more than 250 integrations and API access, IVR, call recording, click-to-dial, SMS and MMS, desktop and mobile softphones, and unlimited simultaneous outbound calls. Professional adds all AI Assist features, Salesforce CTI integration, mandatory call tagging, advanced analytics and live monitoring, smart routing, manual and automated queue callback, a power dialer and voicemail drop. Custom, for 25 licences or more, adds custom onboarding, API developer support, a service-level agreement and single sign-on.

The add-ons are priced per licence. AI Assist covers call summaries, key topics, talk-to-listen ratios, sentiment analysis, call scoring and automated follow-up. AI Assist Pro adds live transcription, real-time prompts and playbooks for sales methods. Analytics+ adds hourly heatmaps, agent activity drill-downs and unlimited history. WhatsApp in Aircall requires a paid plan and carries separate messaging rates. AI Voice Agents handle frequent questions, transfer to a human with context, schedule appointments and log calls to a CRM. They are sold in minute bundles or pay as you go, and AI Messaging Agents are priced per conversation. The page also lists Aircall for Salesforce Voice at $30 per licence per month.

Vonage Business Communications, abbreviated VBC on the vendor's pages, is Vonage's business phone and unified communications product. The pricing page asks for company size and returns per-line prices for three plans, with annual and monthly options and a 12-month promotional discount.

Mobile is described as a phone service app for desktop and mobile. It includes unlimited domestic calling, SMS and MMS, voicemail, number porting, a virtual receptionist and the VBC admin portal. Premium adds support for VoIP desk phones, unlimited video meetings of up to 200 participants, team messaging, the VBC App Center with more than 20 third-party integrations for CRMs and productivity tools, and single sign-on. Advanced adds on-demand call recording for up to 15 hours per month, visual voicemail with transcription and call groups that ring several extensions at once.

Prices are quoted per line at the smallest band and per extension at larger bands, and fall as headcount rises: Mobile moves from $19.99 to $14.99, Premium from $29.99 to $24.99 and Advanced from $39.99 to $34.99. The page adds taxes and fees to every price and notes that fair usage applies to unlimited calls and SMS and that SMS is not available in Mexico. Enterprise sizes are handled by sales. The page states that more than 40 features are available across the plans.

Ooma Office is Ooma's small business phone service, sold alongside its residential Ooma Home service. The plans page lists three self-serve plans and an Enterprise option, and states that no contract is necessary.

Essentials includes more than 100 standard features, unlimited calling in the US, Canada, Mexico and Puerto Rico, a virtual receptionist, a mobile app, one free toll-free number with 500 minutes of inbound calls per month, and digital fax. Pro adds a desktop app, text messaging up to 250 messages a month, video conferencing for up to 25 participants, call recording and enhanced call blocking. Pro Plus adds AI transcriptions, AI insights, CRM integration, up to 1,000 text messages a month, video conferencing for up to 100 participants, team chat, hot desking and call queuing. Enterprise adds SIP trunking, Microsoft Teams integration and direct routing, contact centre features, advanced analytics and custom implementation, and is quoted after a needs analysis.

Ooma's rates page lists the fees around the plans. Additional phone numbers are $9.95 per number per month, directory assistance is $0.99 per call, and text messages above the plan allowance are charged at $0.0095 each. Porting is free and phone support is included. The same page lists hardware such as IP phones and the Ooma Linx adapter for customers that want desk phones. Every plan page lists an AI answering service and AI receptionist.

Google Voice is Google's cloud phone service, sold as an add-on to Google Workspace for businesses and as a standalone plan for one user. The product page describes it as a flexible phone system that works on mobile devices, laptops and supported desk phones, with calls placed directly from Gmail.

Starter includes a single number for all devices with call forwarding, unlimited domestic calling and US texting, voicemail transcription, three-way calling, call transfers, call recording, 24/7 support and desk phone and ATA support. The multi-user Starter plan is limited to 10 users and is available in 14 countries. Standard removes the user limit and adds unlimited regional billing locations, on-demand call recording, auto attendants, ring groups with call queuing, eDiscovery for calls, voicemails and texts, and SIP Link for connecting existing numbers. Premier adds unlimited international billing locations, automatic call recording and advanced reporting through BigQuery.

The product page lists several Workspace integrations. Calls can go to voicemail based on working hours set in Google Calendar, voicemails and texts arrive in Gmail, and Vault integration keeps telephony records in a discovery and retention system. HP Poly desk phones can be provisioned from the admin console. Google Voice uses Google AI to block spam calls and transcribe voicemail. The page also lists a Basic plan at no cost, which requires an existing mobile number and lacks the professional features of the paid plans.

Ringover describes its product as all-in-one VoIP for businesses and call centres. The pricing page shows three plans, with a toggle between monthly and annual billing and a stated 25% annual discount.

Talk is sold online only and is presented as simple telephony for small businesses. It includes one local or toll-free company number, unlimited national calls, text messages, greetings and business hours, call logs, recordings, summaries and transcription, and an unlimited AI virtual receptionist. Business, which the page marks as most popular, is described as an AI-powered omnichannel solution for sales, support and HR teams. It adds local numbers from 65 countries on annual plans, advanced IVR with smart routing and call groups, more than 100 integrations with CRM, applicant tracking and helpdesk tools, analytics and coaching features such as double listening and whispering, and a power dialer. Advanced adds call campaigns, voicemail drop, local presence dialing and single sign-on.

Add-ons extend the plans. Empower is a conversational AI product for analysing calls. Omnichannel messaging at $29 per licence brings Instagram, Messenger, WhatsApp, email and Google reviews into Ringover. Cadence, a prospecting automation tool, is $59 per user, and CRM Autofill for Salesforce is $5 per licence. The page shows AI transcription, summaries and tags across all plans. Buyers should confirm with Ringover which displayed price corresponds to annual billing before committing.