Best Enterprise VoIP Providers

Companies Use VoIP to Scale Quickly

Companies running an enterprise operation understand the importance of quickly scaling to match current business needs. Traditional heritage telephone systems require huge investments of resources, are cumbersome, and offer little or no flexibility.

VoIP, or Voice over Internet Protocol, is an internet-based phone service, and it better meets the needs of enterprise operations. With system functionality, rapid expansion, the best office phone systems allow staff to work from anywhere, on any chosen device.

Read on to discover more about the business connectivity offered by the best enterprise VoIP providers. This list of 12 enterprise VoIP providers represents the top providers available to enterprise entities today.

What is Enterprise VoIP?

Enterprise VoIP providers deliver high-grade voice-over IP telephone services created specifically to match the needs of rapidly scaling organizations. With such adaptability enterprises better manage resources and focus on outward-facing business opportunities.

The 12 Best Office Phone Systems

Best known as a heavy-lifter in business circles, the Enterprise VoIP system and its
cloud-configuration, provide total communication control. Even with its tailored approach, it can save up to 80% over traditional legacy systems.

Here are the 12 top VoIP service providers:

1. PanTerra

With a helpful website, informative tutorials, and generally well-reviewed customer service, for enterprises using PanTerra, expectations run high. Many customers believe them to be one of the best VoIP service providers.

With that said, others believe their interface to be less than friendly making the need to instigate small changes cumbersome, or more cumbersome than desired. Others enjoy PanTerra’s cost savings, over similarly featured VoIP systems. Many customers state they like the cost savings over similarly featured systems.

2. Ring Central

Ring Central delivers a well-balanced solution for businesses emphasizing work-from-home strategies. These include integrated messaging and unlimited video conferencing options. Built into their basic system are services often up charged by other VoIP service providers.

A highly effective price matching service (for customers with less than fifty lines) removes any concern about paying too much for the cloud-hosted services. Customers also have a strong attachment to their best office phone systems with a promise of 99.99% uptime. Both in-house and at-home staff rely on these services day and night.

3. Ooma

With highly scalable solutions and competitive prices, Ooma is a favorite of small business owners. Their standard and Pro plans set them apart as the leading best enterprise VoIP providers particularly for companies with at-home employees.

Efficient access to an office phone while working from home has become vital in today’s business climate. VoIP service providers like Ooma, offer clients affordable access even with their upper-tier plans. Remote features keep businesses connected with mobile and desk apps. Group extensions and transfer options service customers best.

4. Nextiva

For midsize enterprises concerned with cost, Nextiva is a great option. The balance of price and features weighs heavily in favor of most businesses with mobile and desktop apps designed to allow staff to ditch clumsy office systems in favor of streamlined cloud-based call, messaging, and video chat capabilities.

While effective the overall price structure is a bit complex so a deep dive into the website’s pricing information is recommended. Pay attention to price variances between month-to-month and prepaid 36-month contracts. It is impressive that none of Nextiva’s plans cost more than $45 per month for one of the best VoIP apps for business.

5. Grasshopper

Businesses used to believe that to be successful, employees had to work in structured office settings. Grasshopper, and its finely tuned enterprise VoIP system, offer mobile businesses, and more traditionally structured enterprises, the benefit of their highly personalized and customizable system. Service is available in the US and Canada.

Slightly more expensive than similarly featured competitors, their plans start at $26 per month (with annual billing) but this buys you only get one business number with up to three extensions. No one would accuse Grasshopper of being one of the worst VoIP providers, but midsize and larger businesses will want to cost compare.

6. 8×8

Uncertainty seems the only certainty for small businesses today. Selecting a low-cost VoIP system can make great fiscal sense. 8×8 offers enterprise businesses three simple plans loaded with features. Enterprise VoIP providers integrate with third-party business apps and they accomplish this while keeping investment in their system low.

Starting at just $12 per month, 8×8’s team messaging, HD videoconferencing, as well as screen-sharing all make for a value-packed offering. They even offer an auto-attendant feature, at no extra charge. That being said, be careful about their plan upgrades. These are not the cheapest in the industry and can quickly impact the bottom line.

7. Vonage

Easy to set up and use, Vonage is one of the best-known enterprise VoIP providers available. Built for easy use and growth, there are no challenging transitions in the future of an enterprise using this system. Expansion is as simple as the initial setup. Integration with all major business tools is easy too.

All plans offer great features for remote and in-office employees, including team messaging, unlimited calls, and text messages. Videoconferencing does require an upgrade to Premium. All plans include 24/7 customer support and IT solutions which along with their 20 third-party integrations make this a robust enterprise solution.

8. Verizon

Verizon sets the standard for its BYOD (bring-your-own-device) VoIP service. With its super-fast fiber-optic internet connection (Fios) it has made a name for itself that is well deserved. Reliability is the backbone of its business appeal. Though not known for customer service, its equipment and dependability can not be beaten.

Such reliability does not come cheap, so Verizon’s best office phone systems are not a budget choice for small enterprises. But if reliability is required, look no further. Currently, 21 states enjoy Fios service which translates into super-fast internet service making Verizon one of the best enterprise VoIP providers.

9. GoToConnect

Launched in 2006 as Jive, GoToConnect has built a solid track-record and sterling list of glowing critical reviews. Premised on a simple interface and focused entirely on small business needs, the list of features is extensive and is available at all pricing levels. This makes for very happy customers since the systems work well too.

With features such as call routing, caller ID, Do Not Disturb, custom hold music, and international calling is it no wonder why reviewers believe them to be one of the top enterprise VoIP providers. Their unlimited videoconferencing for up to 250 participants seals the deal as a brilliant enterprise VoIP system.

10. DialPad

With multiple paths to connect business teams with customers, DialPad makes business calls better. A long list of tools come with the system and these tools translate into customer satisfaction and greater client connections.

Leveraging business communication in multiple ways, DialPad delivers one of the industry’s best office phone systems. With voice and video, messaging, AI, and video meetings across all devices, it is a well-priced system whether at the Pro or Enterprise level.

11. Avaya

Tied to a single platform, Avaya is one of the best enterprise VoIP providers that allow users to call, chat, collaborate, and meet both inside and outside of the company. With a complicated past, Avaya Cloud Office offers users an all-in-one system that fits nicely with many midsize enterprise needs.

With four distinct pricing plans, each price is based on the number of software licenses needed. With 20 or fewer users the Essentials plan makes great sense at $19.99 per user, per month. Prices go up from there, all driven by the number of users. Solid analytics offer a window into how effective are an enterprise’s communications.

12. Mitel

A list of best enterprise VoIP providers is not complete without Mitel. Like others, on the list, they offer internet calling, video, voicemail, cloud storage, and messaging. For many, it boils down to personal preferences. That said, it is important to understand the offering and how each enterprise VoIP system meets an enterprises’ needs.

Well-positioned to meet most midsize business needs is Mitel. A solid, dependable provider, with well-regarded customer service credentials and one of the best office phone systems available, should not be overlooked.

Smartphones outperform landlines in much the same way that VoIP systems deliver more effective and efficient plans than more traditional heritage systems. With unique benefits and challenges, they offer great options for small and medium-sized businesses needing options and pivoting ability in today’s changing business climate.

And with remote work becoming more common and accepted than ever before VoIP phone systems are vital to business success. With robust versatility and customizable adaptability, they meet the needs of the enterprise businesses in every growing way. When cost and efficiency are compared with older systems there is no choice.

What’s the Best Virtual Phone System for Small Business

In an industry where one size does not fit everyone, there is a VoIP system out there that best matches the business voip needs of small and medium-sized businesses. With cost and service advantages, Enterprise VoIP is becoming the industry standard.



Pan Terra offers an all-in-one, cloud-based, and unified communication system for business.
 5/5 (696)


RingCentral boasts of innovative technology and secure, office phone systems whose key features are seamless system features, voice calls, video calls, video conferencing, real-time messaging, and file sharing.
 3.8/5 (593)


Ooma creates powerful connected experiences for businesses and consumers which it delivers from its smart cloud-based software as a service (SaaS) platform.

 2.8/5 (356)


Nextiva allows you to connect your business phone system with business apps, AI, and automation on a single platform.

Rating coming soon


Grasshopper provides affordable options built for small businesses: full virtual phone systems, no additional devices needed, 24/7 support.

Rating coming soon

Who Should Invest In Enterprise VoIP Solutions?

The terms unified, seamless, and cutting edge can all be used to describe modern communication solutions offered by large corporations and even small businesses. These terms are used, to mean that modern communication solutions offer a holistic approach to CRM and customer service.

At the heart of modern communication, solutions sit Enterprise VoIP services. Enterprise VoIP Unified communication systems are mostly used by medium and large businesses for the seamless running of the business. The solutions are tailored to the needs of each company and are optimized for efficiency at a professional level.

While all people have access to some form of VoIP, enterprise VoIP is at a higher level and is more sophisticated. Keep on reading to learn more about choosing enterprise VoIP providers.

Enterprise VoIP Phone Systems

In the simplest terms, enterprise VoIP is a telephony communications system that offers more features and is easily scalable than the traditional legacy cable phone systems used in businesses. With enterprise VoIP, companies can easily adjust their services by adding or removing VoIP lines from the system.

With enterprise VoIP, customers have various options. Companies can either deploy a cloud phone system or gain complete control by installing an on-premise system. In some instances, companies choose to install an on-premise system but still allow third-party companies to run and manage it.

Thanks to the flexibility brought about by VoIP systems, both small and large businesses can reduce the cost of communication and enhance the features of their communication system by using VoIP enterprise.

How to Compare Enterprise VoIP Providers?

There are plenty of players in the Enterprise VoIP market. Companies can choose from a wide range of Service providers and compare features. Due to the differences in services offered and the features provided, it is necessary for every business manager to make strong considerations before settling on a service provider.

Below are the key factors to consider before settling on one service provider:
1. Set the Telephony and Communications Budget for One Year

Budgeting is all an important part of making the choice between one service provider and another. In essence, most service providers are priced based on the features they offer. Look at the budget available to see which services can be provided efficiently.

Besides the charges made by service providers, also consider the hardware needed to make the system work. In the case of enterprise VoIP, it is more likely that hardware such as phone systems, routers, and modems might need an upgrade.

2. Assess the Available Internet Connection Speed and Gauge its Capabilities

At this level, the internet speed of the connection may also need improvement. Enterprise VoIP systems are mostly used by businesses that have plenty of traffic to handle. In most cases, the system will be used to handle 10 lines at a time or even more.

While enterprise VoIP systems do not need a lot of data and can manage up to 10 lines with just 1MBps, the recommended range is 5 to 10 MBps for a system that will be handling over 10 lines.

Working with a strong connection pays both ways. The calls are much clearer and all the features of the system function well. Further, the connection does not cause embarrassment when making calls to important clients. Consider all these cost implications against the available budget.

3. Read Online Reviews to Compare Providers

The other factor of utmost importance is the quality of service. The way the service provider handles customers, the availability of customer support among others. To learn more about the suitability of each service provider, reading online reviews will help.

Online reviews give more insight into the available features, the functioning of the system, and customer support offered.

When checking online reviews, be watchful not to fall for fake reviews. Many companies these days buy reviews just to attract customers. Scrutinize all reviews and pay more attention to the negative reviews to see what are the shortcomings of the system.

The Difference Between Enterprise VoIP and other Types of VoIP

When most people talk about VoIP they think that there is just one type of VoIP. On the contrary, there are five types of VoIP, each with its benefits and shortcomings.

The main types of VoIP are:

Cloud PBX
Enterprise VoIP
Business VoIP
Hosted PBX
SIP Trunking

Enterprise Vs Business VoIP

Enterprise and Business VoIP are closely related in that they are both used at a professional level. The difference is that enterprise VoIP is more advanced in terms of the features offered. In both options, packets of data are used to direct calls over the internet in place of copper lines used in Public-Switched Telephone Network PSTN.

Due to the advanced nature of enterprise VoIP, it is mostly used by large and medium enterprises. On the other hand, business VoIP is commonly used by small businesses owing to the cost implications of the two options.

Hosted vs Enterprise VoIP

Hosted VoIP services are a more simplified form of VoIP that can be used by individuals or businesses. In hosted VoIP, the phone system is hosted on the service provider’s data center. This means that the system is managed and maintained by the service provider.

This option is much cheaper than enterprise VoIP since there is no cost of infrastructure. On the downside, hosted VoIP does not offer as many features as enterprise VoIP. It is controlled by the service provider and may not be well suited for businesses that wish to uphold internal privacy and data control.

Cloud Private Branch Exchange vs Enterprise VoIP

Cloud Private Branch Exchange (PBX) is sometimes also referred to as hosted PBX. It is a VoIP telephony system managed and delivered through the internet by a third-party service provider. This type of system provides personalized business PBX without the need to purchase in-house hosting equipment.

When compared to enterprise VoIP, cloud-based PBX is much cheaper and easier to maintain. It is also more secure than hosted VoIP but less effective as compared to Business and enterprise VoIP.

Session Initiation Protocol (SIP)

Session Initiation Protocol simply works in the same way as hosted VoIP or cloud PBX except that it allows businesses to purchase a few custom lines, where they can receive business calls, messages and even perform video conferences.

It is the best option for businesses that do not have funds to invest in enterprise or business VoIP or those that would rather avoid managing in-house systems.

Key Features of Enterprise VoIP Phone Systems

Enterprise VoIP telephony is the highest level of VoIP communication solutions. This is the reason why enterprise VoIP is preferred by large businesses with plenty of call traffic.

The key features of enterprise VoIP systems are as follows:

Real-time Scaling

The main reason all big firms are striving to use enterprise VoIP is the flexibility the system offers. They allow businesses to expand the number of lines or downsize where necessary at any time. Users have the assurance that they will get value for money and will never be forced to pay for services they do not want.

Remote Working Features

The other positive feature of enterprise VoIP systems is that they promote remote working and management. Desktop apps and IP phones can connect to the system to get the important services used at the work office desk.

They also allow for call tracking, GPS location among others. These features allow call center managers to track all call center workers for better remote working productivity.

Advanced Call Routing

While most VoIP systems have some form of call routing, enterprise VoIP takes it to a new level. With their advanced call routing features, even the business owner can choose to handle specific calls individually when he/she is free. If the calls come at the wrong time, they can be forwarded to another employee to pick.

In simple terms, their call routing has several options. The “don’t disturb button” can be used to stop receiving calls. Further, calls can be forwarded to specific employees through the customization of the hours when calls will be forwarded.

Easy Integration With CRM Tools

In the modern business space, plenty of tools and resources are cloud-based. Since VoIP calls are made over the internet, it is easy to integrate with other CRM tools. The enterprise unified communications system means that it is integrated with key tools such as a calendar, Salesforce, QuickBooks, and other important software at the office.

Who Should Use Enterprise VoIP?

Enterprise VoIP systems sit right at the top of the ladder when it comes to unified communication solutions globally. This means that it is suitable for any business that wishes to introduce cutting-edge communication solutions.

However, this type of communication solution is also labor-intensive and might be cumbersome for small businesses to handle.Ideally, enterprise VoIP providers target medium and large businesses with high traffic of calls. Small businesses that also have a huge communications budget can cut it by investing in enterprise.