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Pros / Nextiva doesn't require its customers to sign a contract.

Cons / This provider lacks a service-level agreement.

 Verdict / Nextiva is a feature-filled and reliable business VoIP provider, but it is quite expensive.

Nextiva is a cloud-based business VoIP service that serves more than 100,000 businesses throughout the U.S. It can enhance your company's communication, both internally and externally, by combining voice, conferencing, email and messaging all under a simple platform.

Since Nextiva is hosted in the cloud, you don't have to worry about any complicated hardware during setup. And as long as you have an internet connection, you access your calls anywhere. The service works well for businesses of all sizes – and can support more than 100 users.

The system provides most features your business needs, although Nextiva requires you to purchase a higher-tiered plan for some of the advanced ones. There are three different plan options to choose from. Each plan includes both a local and a toll-free number. Unlimited domestic calling is also included with all plans. As for pricing, you pay per extension ¬– the more users you have, the bigger discounts you get. We found that Nextiva was the most expensive provider out of all the services we evaluated. It costs almost $6,000 for a year of service with 15 users.

To ensure your customers never get a busy signal, this business VoIP phone service has various queuing options. For example, circular ring mode is a round-robin ringing format for when you want the phones to ring in a specific order of assigned agents. Simultaneous ring mode is what it sounds like: all agents' phones ring until somebody answers the call. Nextiva also gives you access to your company's call analytics. You can use the data to route incoming calls based on agent performance. By default, customer relation management software integrates with Nextiva. Supported systems include Salesforce.com, Zendesk, SugarCRM and NetSuite.

Like most other providers, Nextiva does have an auto attendant, which guides callers to the proper department they need to reach through voice prompts. You can record and upload custom greetings to the system that welcomes your customers when they call your business.

Training and monitoring employees is a breeze with Nextiva. Managers on the Office Enterprise plan can silently listen in on phone calls without interrupting the call. If they need to take control of the call, they can barge in as well.

Nextiva's network is both reliable and fully redundant. It's powered by 10 servers throughout the country. However, Nextiva doesn't offer a service-level agreement to back up its network. It does claim that its network is running 99.9 percent of the time, however. The provider offers a 30-day money back guarantee. When it comes to support options though, you can reach the company by telephone, email and live chat. Many online resources, including a blog, forums, a FAQs page and some videos, are hosted on the company website, too.


Nextiva is one of the best cloud-based VoIP phone systems available. It has several queuing options, supports multiple users and is stacked with features. However, this is the most expensive provider on our lineup. You can feel confident choosing Nextiva to host your business' phone system even though it doesn't provide a service-level agreement.