Best Cloud Phone Systems for US Businesses in 2025

Our research has concluded that the best cloud phone system is RingCentral Advanced. It impressed us the most of all the plans we researched for businesses after an affordable yet comprehensive cloud phone system for multiple agents and staff.

That’s primarily due to its superb live coaching tools like call whisper, industry-leading 300+ integration options and advanced call management features helpful to a cloud phone business, from custom call routing to AI-powered spam call filtering.

Still, RingCentral Advanced may not suit every business. Whether you need a hyper-functional cloud phone system or just the basics, there are plenty more excellent small business phone systems out there to choose from. We’ve reviewed and compared the prices, features, and functionality of our top eight cloud phone systems below to help you make a smart decision.

The Best Cloud Phone Systems in 2025

After our extensive research into different phone systems, we’ve determined these are the 8 best cloud phone system providers:

RingCentral Advanced – Best Cloud Phone System Overall

RingCentral Advanced leads the pack with its advanced call management features and AI-powered coaching tools that we found could offer real-time training to staff and deeper insights into business calls.

Despite its slightly higher price tag, RingCentral Advanced’s extensive integration options — over 300 third-party applications — combine with customizable call routing, amongst other plentiful calling features, to become our top overall pick.

What are RingCentral Advanced’s standout features?

RingCentral Advanced is the best overall VoIP provider, offering:

✅ Best-in-class call coaching and AI tools – Call whisper and call barge plus AI-powered transcription, sentiment analysis, and real-time note taking that syncs with call history, make RingCentral Advanced the best provider for training and real-time insights.

Only GoTo Connect Phone System, Vonage Premium, 8×8 Work, and Zoom Regional Unlimited match its Whisper and Barge features, but they also lack its AI-powered coaching smarts. Better yet, you can purchase its RingSense add-on and get the AI to record sales conversations, keep CRMs up-to-date with new data, and provide further coaching tips to win more deals.

✅ Industry-leading call management – This includes customizable call routing, voicemail transcription, and a user-friendly IVR designer. There’s also AI-driven spam call blocking to reduce unwanted calls that more basic offerings, such as Dialpad’s focus on caller ID, cannot match.

✅ The widest range of external app integrations – Over 300 third-party applications are natively integrated with RingCentral Advanced, including 110+ different CRM software from niche to mainstream. That puts it far ahead of net2phone, GoTo Connect Phone System, and Zoom Regional Unlimited.

Where do gaps exist in RingCentral Advanced’s overall package?

❌ More expensive than Zoom Regional Unlimited – Costing between $25–$35 per user/month, it is a markedly more expensive choice compared to the ultra-affordable $15 for Zoom Phone Regional Unlimited.

❌ No unlimited international calling – GoTo Connect Phone System (50+ countries) and 8×8 Work (48 countries) offer unlimited plans, while RingCentral only provides metered international calls across all its plan offerings.

❌ No built-in social media integrations – Nextiva Engage includes native WhatsApp and Instagram messaging, making it a better choice for social media-heavy businesses. Again, this isn’t something available on any RingCentral plan.

Zoom Regional Unlimited – Best Value Cloud Phone System

Zoom Regional Unlimited offers an outstanding balance between cost and performance at just $15 per user, per month. Some of its most commanding aspects include strong video conferencing – as you might expect from Zoom – alongside customizable meeting templates and essential call monitoring features that support scalable business needs.

It does miss out on advanced AI-driven analytics and robust spam-blocking tools, which might be a drawback for some users, but we’d argue it’s still the best value provider of all we’ve tested.

What are Zoom Regional Unlimited’s standout features?

Zoom Regional Unlimited is the most affordable cloud phone at just $15 per user/month:

✅Far cheaper than RingCentral Advanced ($25) and Nextiva Engage ($40). For instance, if your medium-sized business has 75 employees, then that’s $13,500 per year instead of $22,500 with RingCentral or $36,000 with Nextiva. In other words, opting for Zoom Phone over others could make for some hefty savings, cutting costs on software rather than elsewhere.

✅ Strong video conferencing capabilities – Zoom is known for its video conferencing and Zoom Phone Regional Unlimited supports 500-participant capacity video meetings, outperforming RingCentral Advanced (100 participants) and GoTo Connect Phone System (150 participants). It has excellent features here, too, such as breakout rooms, whiteboard tools, annotation options, gesture recognition, and more. This makes it the standout choice for businesses that rely heavily on video meetings and want those abilities natively in a cloud phone system.

✅ Comprehensive live call monitoring and coaching – Zoom Regional Unlimited supports both call whisper and call barge, allowing supervisors to coach and intervene on live calls. This places it alongside RingCentral Advanced, GoTo Connect Phone System, Vonage Premium, and 8×8 Work as one of the top choices for live call coaching. By contrast, Dialpad Pro and Nextiva Engage lack these real-time monitoring tools.

Where do gaps exist in Zoom Regional Unlimited’s overall package?

❌ No AI-powered analytics or sentiment analysis – Unlike Dialpad Pro and RingCentral Advanced, Zoom does not offer AI-driven real-time call transcription or sentiment tracking. You can get live captions during a call, and Zoom has an AI companion to generate call, voicemail, and message summaries, but these specific features are missing.

❌ Limited call screening and spam-blocking tools – RingCentral Advanced and Dialpad Pro provide AI-powered spam blocking, but Zoom lacks an advanced filtering system to prevent nuisance calls (you can manually tag a call as spam, but that’s all).

❌ No social media messaging support – Unlike Nextiva Engage, Zoom Regional Unlimited does not include built-in WhatsApp, Instagram, or Facebook Messenger integrations, making it less suitable for businesses that engage customers through social media.

8×8 Work – Best Cloud Phone System For International Calling

8×8 Work shines in international connectivity, offering unlimited calling to up to 48 countries alongside comprehensive analytics and real-time call coaching. Its multi-language support and robust integrations make it especially appealing for global teams.

Despite its opaque pricing and limited voicemail screening, its extensive international reach secures its spot for businesses with global communication needs.

What are 8×8 Work’s standout features?

8×8 Work is the best cloud phone for international calling, offering:

✅ Unlimited calling to 48 countries & 500-participant video meets – Bettering the likes of RingCentral Advanced and Zoom Regional Unlimited, 8×8 has vast country calling allowance included. GoTo Connect Phone System also offers international calling to marginally more countries (50+), but it isn’t clear if this is included since GoTo references “specific plans”. Plus, its 8×8 Meet platform supports up to 500 in-meeting participants, matching Zoom Regional Unlimited to the widest extent, which is another boon for international communications.

✅ Strong multi-language support and customer service – Unlike RingCentral Advanced (which only supports English/Spanish), 8×8 Work provides multilingual support in Hindi, Mandarin, and many more major languages, adding to its appeal for international teams.

✅ Comprehensive live call coaching and monitoring – 8×8 Work supports both call whisper and call barge, making it one of the strongest providers for real-time training, alongside RingCentral Advanced and Zoom Regional Unlimited. This gives it a major advantage over Dialpad Pro and net2phone Professional, which lack both features.

Where do gaps exist in 8×8 Work’s overall package?

❌ Less transparent pricing – All other packages on this page have some indication of price point, except 8×8 Work. Compared to Zoom Regional Unlimited, which details the exact cost of its add-ons as well as its base price of $15 per user/month, 8×8 Work makes it harder for businesses to budget effectively due to its custom pricing.

❌ Limited voicemail screening – Unlike Vonage Premium and RingCentral Advanced, 8×8 Work lacks advanced voicemail filtering and screening tools, which can be an issue for businesses handling large call volumes.

GoTo Connect Phone System – Best Cloud Phone System For Scalability

Our assessment of GoTo Connect Phone System has led us to think it is one of the best options for long-term scalability, supporting a wide range of desk phone brands and flexible call routing across multi-location teams.

It offers diverse communication channels — including SMS, email, and live chat — along with unlimited international calling to over 50 countries. And with it being the cheapest plan GoTo offers, there’s plenty of room for expanding operations to grow (which might be needed since it does lack as many CRM integrations as other options).

What are GoTo Connect Phone System’s standout features?

GoTo Connect Phone System is a great choice for businesses looking to scale, thanks to its hardware flexibility, international capabilities, and strong call management/coaching features. Especially since it is GoTo’s cheapest cloud phone plan. It offers:

✅ Widest hardware compatibility – GoTo Connect supports the largest variety of desk phones and hardware, including Polycom, Cisco, and Yealink models, we assessed. This gives it an advantage over 8×8 Work, which has stricter hardware requirements, and Vonage Premium, which requires certain models for optimal performance. Its Bring Your Own Device (BYOD) policy also makes it a more flexible option than RingCentral Advanced.

✅ Strong real-time call monitoring and coaching – Goto Connect supports both Call Whisper and Call Barge, allowing supervisors to coach employees discreetly (whisper) or take over a call (barge). This places it alongside RingCentral Advanced, Vonage Premium, 8×8 Work, and Zoom Regional Unlimited in terms of live agent support, while making it a better option than net2phone Professional, Nextiva Engage, and Dialpad Pro, which lack at least one of these tools.

✅ Robust international calling capabilities – Goto Connect offers unlimited calling to 50+ countries, the highest of any provider, making it marginally more expansive than 8×8 Work’s 48-country limit and far ahead of RingCentral Advanced and Zoom Regional Unlimited, which only offers metered international calls by default (you can purchase an add-on for Zoom Phone for unlimited calling to 14+ countries).

✅ Strong communication channel variety – Covering SMS, email, live chat, and video conferencing, GoTo Connect Phone System has a variety of communication tools, despite being GoTo’s lowest priced plan. You can expand this to include social media messaging (Facebook Messenger, WhatsApp, Instagram DMs) if you upgrade, too. This package exceeds plans like Zoom Regional Unlimited, which lacks SMS comms.

What gaps exist in GoTo Connect Phone System’s overall package?

❌ No AI-powered call analytics – Competitors like Dialpad Pro and RingCentral Advanced offer real-time call transcription and sentiment analysis, while GoTo Connect Phone System doesn’t (you need to upgrade to its Connect CX package for GoTo’s AI analytics tools).

❌ Fewer CRM and software integrations – RingCentral Advanced (300+ integrations with 110+ CRM integrations) and 8×8 Work (15+ CRM integrations) provide better CRM and helpdesk software connectivity.

❌ Lacks spam call blocking – Unlike RingCentral Advanced and Dialpad Pro, GoTo Connect Phone System does not filter spam calls automatically, either.

Dialpad Pro – Best Cloud Phone System For Small Teams

Dialpad Pro is tailored for small teams, leveraging its AI-driven call management smarts to optimize call routing, provide real-time coaching insights, and streamline CRM integration.

This AI approach can help small businesses improve their team’s calling abilities without the overheads of traditional live monitoring (although, it doesn’t support call whisper or barge functions even if you did want to coach callers). These sorts of efficient tools make Dialpad Pro a solid choice for lean operations, as we’ll detail shortly.

What are Dialpad Pro’s standout features?

Dialpad Pro is the best cloud phone system for small to medium-sized businesses (SMBs), offering:

✅ AI-driven call management – Dialpad uses AI to route calls to the most qualified agent based on skill, availability, and customer history. This is unlike GoTo Connect Phone System or Zoom Regional Unlimited, which rely on more basic, static routing rules.

✅ Real-time AI coaching and speech analytics – Dialpad’s AI guides agents during calls, detecting frustration and recommending responses. For instance, this could be prompting agents about upsell opportunities or de-escalation strategies. This makes it better than RingCentral Advanced for AI-driven agent assistance.

✅ Automatic CRM logging – Dialpad integrates natively with Salesforce and HubSpot, making it a better choice for CRM-dependent businesses to get call data entry fast, than Vonage Premium and GoTo Connect Phone System.

Where do gaps exist in Dialpad Pro’s overall package?

❌ No call whisper or call barge – Unlike GoTo Connect Phone System, RingCentral Advanced, and 8×8 Work, Dialpad does not allow live coaching or monitoring. While it has the AI tool to fill this need, as mentioned above, this can’t be considered the same kind of oversight a human manager could offer for real-time coaching.

❌ No social media integrations – Nextiva Engage offers WhatsApp, Instagram, and Facebook messaging natively, making it a better choice as a full-round UCaaS provider for enterprises with social media needs.

❌ No international calling plans – GoTo Connect Phone System (50+ countries) and 8×8 Work (48 countries) offer unlimited international minutes packages, whereas Dialpad Pro has no such offering.

Nextiva Engage – Best Cloud Phone System For eCommerce

Nextiva Engage is purpose-built for eCommerce and social media-driven businesses, featuring integrations with WhatsApp, Instagram, and Facebook alongside solid CRM connectivity options. Its VIP call queuing and real-time sentiment analysis caters to high-value customer interactions.

Despite its premium pricing and the absence of live call coaching or unlimited international calling, we believe its focus on omnichannel support justifies Nextiva Engage’s top position in this niche.

What are Nextiva Engage’s standout features?

Nextiva Engage is the best cloud phone system for eCommerce and social media-driven businesses, offering:

✅ Leading social media support – WhatsApp, Instagram, and Facebook integrations make it unmatched in omnichannel communication with social media included. Unlike GoTo Connect or net2phone Professional, Nextiva offers real-time customer journey tracking across all your calls, chats, and social media communications with individuals.

✅ VIP customer call queues – If you want to have the ability to prioritize high-value clients, Nativa Engage has this ability baked into its queuing system, unlike GoTo Connect Phone System. This could be especially important if you are dealing with social media leads, where certain high-profile clients may be of greater importance to your operations.

✅ Real-time AI-driven sentiment analysis – Dialpad Pro has similar tools, but RingCentral, GoTo Connect, and 8×8 Work all require you to upgrade to a more expensive package.

Where do gaps exist in Nextiva Engage’s overall package?

❌ Fewer software integrations – Competitors like RingCentral Advanced and 8×8 Work have more third-party tools that natively integrate with their systems.

❌ No international calling plans or add-ons are included or offered by Nextiva – Instead, you’ll have rates variable by country starting from one penny per minute. By comparison, 8×8 Work and Goto Connect provide unlimited international minutes.

❌ No call whisper or call barge tools – You’ll have the option to package both of these coaching tools with GoTo Connect Phone System, RingCentral Advanced, and 8×8 Work, but not with Nextiva Engage.

net2phone Professional – Best For Low-Cost International Calls

net2phone Professional offers a cost-effective solution with unlimited calling to the US, Canada, and more than 40 international locations, making it an attractive choice for businesses with heavy international communication needs.

Its powerful call handling and ease of implementation provide a solid foundation for cost-sensitive operations. However, its limited integrations, lack of live call coaching, and absence of advanced AI analytics are some trade-offs compared to the higher-end systems on this page.

What are net2phone Professional’s standout features?

✅ Unlimited calling to the US, Canada, and key international destinations – Unlike Zoom Regional Unlimited, which offers metered international calls, net2phone Professional includes unlimited calling to 40+ international locations as part of its standard pricing. That’s not as many countries as 8×8 Work and GoTo Connect Phone System, but given it can cost as little as $19.99 per user, per month, it is reportedly a lot cheaper. This reduces unpredictable costs for businesses making frequent international calls.

✅ Powerful call handling capabilities – net2phone Professional provides call queues, auto-attendants, and advanced routing options, making it a slightly better choice than Zoom Regional Unlimited in this area, which has fewer queueing features. While not as advanced as RingCentral Advanced or Vonage Premium, it still outperforms Nextiva Engage, which has weaker auto-attendant capabilities.

✅ Minimal setup and easy deployment with clear pricing – net2phone emphasizes a streamlined, plug-and-play system, making it easier to set up than 8×8 Work and Vonage Premium, which require more complex onboarding and integration steps. It’s also clear exactly what you’ll be paying, as it details what is included and what is an add-on across its website.

Where do gaps exist in net2phone Professional’s overall package?

❌ No call whisper or call barge – Unlike GoTo Connect Phone System, RingCentral Advanced, Vonage Premium, 8×8 Work, and Zoom Regional Unlimited, net2phone lacks real-time coaching and monitoring tools.

❌ Limited native software integrations – Compared to RingCentral Advanced and 8×8 Work, net2phone Professional lacks deep CRM and productivity tool integration. It only has native integrations for SalesForce, Zoho CRM, Zapier, Google Workspace, and Microsoft Teams. It does state that its API options can provide users the ability to create integrations for those not covered, but this extra legwork might be more time-consuming for less tech-savvy teams.

❌ No AI-powered call analytics – Dialpad Pro and RingCentral Advanced provide real-time transcription and sentiment analysis, which net2phone does not offer on its Professional plan. Instead, you would need to upgrade to its custom-priced Ultimate package or purchase these advanced AI tools as an add-on (also custom-priced).

Vonage Premium – A Top Cloud Phone System For Advanced Call Management

Vonage Premium might be the lowest-ranked of the provider plans on this page, but it still made our top eight, offering a comprehensive call management suite that includes sophisticated routing, auto-attendant features, and customizable API-based call flows.

Its decent analytics and 24/7 live support provide essential tools for always-on businesses and although it might offer as much for your money as other providers, its advanced call handling features position it as a top choice if your team has complex needs.

What are Vonage Premium’s standout features?

✅ Comprehensive call management suite – Multi-level auto-attendant, advanced call forwarding, voicemail-to-text, call whisper, and call barge to make Vonage Premium a better option than net2phone and Zoom Regional Unlimited for business-grade call routing.

✅ Flexible API-based call flows – Unlike GoTo Connect Phone System or Dialpad Pro, Vonage Premium allows full customization of call flows via APIs, as well as seamless calling data transfers.

✅ Advanced call analytics and reporting – While Vonage does not have AI-driven analytics like Dialpad Pro, it does offer advanced historical and real-time reporting tools, making it a stronger choice than Zoom Regional Unlimited and net2phone Professional, which have limited reporting capabilities according to our research.

Where do gaps exist in Vonage Premium’s overall package?

❌ Fewer CRM integrations – RingCentral Advanced (110+) and 8×8 Work (15+) offer wider software compatibility, especially since you need to pay for half its integrations, including Salesforce. Still, it does have some big names covered like Google Workspace, HubSpot, Microsoft 365 (+ Teams), and Slack should you not need more niche coverage.

❌ Lacks AI-powered call analytics – While it offers AI transcription for recorded calls, Vonage Premium lacks real-time transcription and sentiment analysis available with competitors like Dialpad Pro and RingCentral Advanced.

❌ No free unlimited international calling – Unlike Goto Connect (50+ countries) and 8×8 Work (48 countries), Vonage Premium does not include unlimited international minutes by default, which can increase costs for businesses with global communication needs.

Cloud Phone System Benefits

Here are a few top reasons why your business should consider using cloud phone systems if you aren’t already convinced by the features we’ve outlined in the reviews above.

Cost savings and scalability

Cloud-based phone systems reduce costs by eliminating the need for on-premise hardware and maintenance expenses. Businesses can scale effortlessly, adding or removing lines and features without extra costs, making them a flexible, cost-effective solution for companies of all sizes.

Flexibility and mobility

Employees can work seamlessly from anywhere with an internet connection, accessing their phone system via smartphones, tablets, or desktops. Mobile apps, call routing, and uptime guarantees with all the reviewed providers on this page mean your team should all have constant connectivity, thereby improving your business’ productivity and responsiveness regardless of location.

Plus, many cloud phone packages have unlimited international calling options and large-scale video conferencing capabilities so you can always stay connected with your team and customers no matter the distance.

Advanced features and integration

Cloud phone systems offer voicemail-to-email, call recording, auto-attendants, and seamless CRM and collaboration tool integrations. These features streamline workflows, improve customer service, and boost efficiency, helping businesses meet evolving demands.

Methodology: How Did We Find The Best Cloud Phone Systems For US Businesses?