Phone Power doesn't provide unlimited calls. It also limits the number of extensions you can have. It comes with many basic features and lets you can keep your telephone numbers if you want. This business VoIP service doesn't have some of the most sophisticated features, but it will still do a good job handling your company's telephone needs.

Phone Power allows you to customize your business VoIP plan to meet your company's needs. You can establish a one-year contract with Phone Power or use the service without signing a contract. When you set up the service, you can keep your current number. All in-network calls are free. You can make international calls with this business VoIP service, but as you would expect, there is an additional fee.

This service provides unlimited inbound minutes but only 5,000 outbound minutes. We are disappointed to see this. Most of the other business VoIP services we reviewed provide unlimited inbound and outbound minutes. In addition to this, Phone Power only comes with one extension. These limitations can really make a difference when you are looking to save money on your phone bill.

Phone Power lists more than 45 individual features that include a block list, speed dial, bandwidth saver, do-not-disturb and voicemail. This business VoIP integrates with Microsoft Outlook. It comes with a Find Me/Follow Me feature as well so you won't miss calls when you are away from your desk.

We would have liked to see conference-call options that allow for more than a simple three-way call. Additionally, Phone Power's VoIP service only has the ability to queue callers using hunt groups. Through a hunt group, the service keeps the caller waiting as it moves sequentially through a list of agents until it finds one who is not currently on a call. This type of queue doesn't equally distribute the call volume among all its agents. Those who are highest on the list typically receive more calls than the ones near the end of the list.

This company has a call log, but compared to other business VoIP services we reviewed, it doesn't provide many reports or as much useful information.

This small business VoIP provider has one server location, although it is a fully redundant network. Phone Power, unfortunately, doesn't have a Service Level Agreement. You can find information similar to an SLA in the company's Terms of Service.

Phone Power offers three basic types of support that you can first tap into before you contact the company's support representatives directly via phone or email. Although this business VoIP service doesn't have 24/7 support, it is open Monday through Friday, from 5 a.m. to 7 p.m., and Saturday and Sunday between 6 a.m. and 4 p.m. PST. Whenever we tried to use the chat feature, we had to wait in the queue for at least 20 minutes.

If you have questions regarding your Phone Power service, you can check the knowledgebase, glossary or search the company's site. The business VoIP knowledgebase is slightly difficult to navigate because it looks like a forum with menu navigation. You can click on any of the topics on the left-hand menu bar and it will return with pages of search results for that topic. These topics may be short explanations of a random issue you might encounter, or they may be several screen lengths of screenshots and step-by-step instructions.