Business VoIP Providers Comparison: OnSIP Versus Nextiva– Pricing, Features, Phones

Finding the right VoIP service can be tough, especially if the services you are comparing both have a lot of advantages. OnSIP and Nextiva both market their services toward small to medium-sized businesses (SMBs). These two companies both offer different pricing plans and a wide variety of features that may help your business.

In order to help you compare and contrast the two, this article will look at differences in pricing, features and phones between OnSIP and Nextiva. By the end of this article, you should have a better idea of whether OnSIP or Nextiva are right for your organization. Our top choice is Nextiva because of their award-winning customer service, great pricing, strong uptime and other great features.

Voice over IP (VoIP) services can help you access lower-cost business telecommunications services. Since VoIP technology uses the Internet to transport phone signals instead of using the copper wiring of traditional phone services, phone companies offering VoIP can save money on infrastructure costs. These savings can be passed along to subscribers. If you subscribe to VoIP, you can save on phone costs compared with analog phone services. Businesses that use phone services extensively can generate significant savings, in particular. With the reduced costs of having phone extensions for every employee and department, you can provide more of your company with great communications services.

VoIP Highlights:

  • Nextiva—Pro, Pro Plus and Enterprise plans starting at $19.99 per month. Many integrations and features available that can help your business become more productive. Nextiva has 99.999% uptime, so this vendor does an excellent job of keeping your VoIP service working.
  • OnSIP—Free, Metered, Pay-as-You-Go and Unlimited Plans available. Basic features available for VoIP users.

Article Contents:

  1. How VoIP Can Help Your Business
  2. Pricing
  3. Features
  4. Phones
  5. Which VoIP Service is Right for Your Business?

1. How VoIP Can Help Your Business

With access to low-cost business phone service, your organization can become more productive, make more phone calls, receive contact from customers and look more professional. VoIP services include a lot of extra features that analog phones usually lack. With a lack of extra features, analog phone services typically lack behind what VoIP vendors are able to offer. Businesses with VoIP services can customize their phone systems and use analytics, call queuing systems, private branch exchanges (PBX) that are cloud hosted, and much more.

The reduced costs of business VoIP services makes them much more accessible to smaller businesses than traditional phone services normally would be. This can help businesses access scalable phone services sooner and use them to expand and grow. With advanced features such as conference call bridging, you can offer classes and meetings and include large numbers of participants. You are not limited to three-way-calling if you get a plan with conference call bridging.

2. Pricing


As an industry-leading VoIP vendor, Nextiva offers great pricing and excellent plans.

Nextiva’s three plans are priced differently, with discounts depending on how you pay. Pre-paying for service can earn you a substantial cut in service costs, so it is worthwhile to sign up for a term of service that will enable you to qualify for these low-priced plans.


OnSIP offers four different plans. A free plan, a Pay-as-You-Go plan, a metered plan at $8.95 per month and an unlimited plan at $24.95 per month. The Pay-as-You-Go plan requires that subscribers sign up for a minimum of $49.95 in features per month. As long as you reach the minimum, you can sign up as many users or phones as you want. The metered plan charges per minute instead of per feature, so you are charged for what you use and you can keep your costs low if you do not extensively use your phones. This can be costly for high-volume users, however, making these plans less attractive if your business needs to grow and cover more phone traffic.

3. Features

Features are usually a very important aspect of the vendor decision. Choosing the right vendor for your organization often comes down to what features you need and why you need them. In this case, Nextiva and OnSIP are fairly similar and you probably will not be disappointed with the features of either system unless you have a very specific need.

With a wide range of features in common, there are few differences between the two services. Here are just some of the features offered by both Nextiva and OnSIP:

  • Auto Attendant
  • Call Forwarding
  • Call Monitoring
  • Click-to-Call
  • Call Reporting
  • Dial-by-Name Directory
  • Geographical Redundancy
  • Mobile Softphone App
  • Conference Bridge
  • HD Voice
  • Queue Call Barge

Other Features:

  • OnSIP—Developer APIs, Salesforce Integration, Video Conferencing and WebRTC app (Click-to-Call)
  • Nextiva—Desktop Softphone Client, Online Faxing and Voicemail Transcription, NextOS Platform

OnSIP and Nextiva do have a few distinct features that the other service lacks, which is something to keep in mind if you have specific features you need. Nextiva’s NextOS platform is a game-changing system that guides you through setup, keeps your features all in one easy-to-navigate app and allows you to get your work done with fewer clicks. This feature alone is enormously useful for businesses that need a quick, accessible overview of their unified communications system.

If you are looking for specific features with your VoIP service, be sure to write them down in a list and prepare questions for any vendors you are considering. When talking with sales teams at these VoIP vendors, explain a bit about your business and ask how the features they offer will specifically help your organization. Do not assume that there is necessarily a one-size-fits-all solution out there. In reality, some services are ideal for specific situations and it is impossible to provide top-notch service to everyone who subscribes.

4. Phones

Both OnSIP and Nextiva offer phones that you can use with your VoIP service. OnSIP and Nextiva both recommend phones but do not provide you with locked phones you can only use with their services. So, if you ever do need to switch services, you can bring your phones into other VoIP services.

Keep in mind, though, that if you choose to bring your own phone you may not receive technical support from your vendor on that specific product. BYOD vendors typically do not offer tech support on an extensive range of devices because it would be impossible to cover every brand and model available on the market. You may be responsible for providing your own tech support services. Before purchasing phones, ask your vendor if they offer support for those devices. If possible, wait to purchase phones until after you choose a VoIP vendor. Ask your vendor if they cover whatever phone you are interested in.

Nextiva’s award-winning customer service, however, will probably be able to solve whatever problems you encounter with your phones. They make extra effort to deliver a strong customer experience whenever possible, so you can confidently bring your own phones into their plans.


You can bring your own phones with Nextiva, a feature which is otherwise known as Bring Your Own Device (BYOD). As such, you generally have the freedom to do whatever you need to and obtain the phones you need from any brand. Any SIP-compatible phone will function with Nextiva’s service, in fact. If you need guidance choosing your phones, they can provide that as well.


You can usually use your current phones with OnSIP. With an adapter, you can connect a traditional phone into VoIP service, making it easier to bring your own phone with you.

5. Which VoIP Service is Right for You?

Both services do have a lot to offer, but ultimately Nextiva’s service offers more flexibility, options and great pricing. With a wide variety of pricing options, they make it easy to access a great plan. Nextiva says that nearly half of their employees focus only on customer experience, meaning that service and successful customer experiences are important to them. They are also the recipient of numerous customer service awards and are well-recognized for the high-quality services they offer.

Nextiva allows you to create a true unified communications system for your business that is accessible, full-featured and powerful. You may improve your business productivity, monitor your VoIP system better and get more out of your service by signing up with Nextiva.

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