receives compensation from some of the companies listed on this page. Advertising Disclosure

OnSIP Review

Chad Brooks
Chad Brooks
Editor Staff
Updated Dec 09, 2022

OnSIP is a versatile cloud-hosted VoIP phone system that can be configured in hundreds of different ways. The system requires no equipment to install, and you choose the type of service – pay as you go or unlimited – that best suits your business’s needs. It offers dozens of valuable features and integrates with a number of popular programs that can help boost productivity.

default alt text


The Verdict

OnSIP's pricing structure and variety of features make it a good business phone system for small businesses.

View all of our recommendations for business phone systems on our best picks page. 

OnSIP Pricing 

OnSIP offers two price structures. Each plan differs in the included features and tools. 

  • The Per-Minute plan is $49.95 per month, plus 2.9 cents per inbound and outbound minute of calling. This plan includes five voicemail boxes, three auto attendants, three ring groups, a dial-by-name directory, basic music on-hold services and one call recording user. 
  • The Unlimited User plan is $18.95 per user, per month and includes unlimited domestic calling. This plan includes unlimited voicemail boxes, auto attendants, ring groups, dial-by-name directories, announcements, music on-hold channels, call recording users, call parking and busy lamp fields. In addition, each user receives a Polycom phone. 

With the Basic plan, you can add any feature on an a la carte basis. Prices for the a la carte apps run from $2 for additional voicemail boxes to $50 for a conference suite. 

There are no contracts with OnSIP. You can cancel at any time without penalty. The company also offers a 30-day free trial. 

OnSIP also offers Sayso, a website communication service. This allows businesses to embed video and voice communication tools within their website in order to communicate with customers. The Starter plan is free, and included in the both the Basic and Unlimited phone system plans. The Pro plan is $49.95 per month.


OnSIP offers more than features and tools. Some of those features are included in certain plans, while others must be purchased on an a la carte basis. 

Among the available features are video calling, web phones, voicemail, ring groups, a dial-by-name directory, hold music, call recording, auto attendants, busy lamp fields and call parking. 

Features you can purchase on an a la carte basis include voicemail, an auto attendant, a ring group, a dial-by-name directory, call recording, a simple or enhanced queue and dashboard, announcement, enhanced hold music, Busy Lamp Field, inbound bridge, and call parking. 

OnSIP offers Sayso, a tool that lets visitors to your website make video calls to your sales or support team straight from their browsers. In addition, the system integrates with Highrise, Zendesk, Google Chrome and Slack. 

The OnSIP mobile app is available for iOS and Android devices. From the app, you can make and receive calls from your business line, extension dial co-workers, transfer calls and make video calls. 

OnSIP offers video conferencing for up to five participants at one time. Additionally, OnSIP offers conference calling with its phone system service. With the conference bridge feature (which costs extra), employees have the ability to hold their own conference call with up to 15 callers.

OnSIP Pros

OnSIP is a cloud-based business phone system that doesn’t require any special equipment to install. The system runs on a high-speed internet connection. For optimal use, the company recommends 200 Kbps of bandwidth per call. 

OnSIP uses redundant servers, routers, Tier 1 internet connections and upstream carriers to provide extremely reliable VoIP service. It also has two data centers – one in New York and one in California – to ensure the system is always up and running. 

The entire system can be administered online. From the online portal, you can, among other things, add phone numbers, users, phones and voicemail boxes. 

Access to the Sayso service is a unique offering that most business phone system providers don’t offer. This can be a nice addition to your communication services if you are looking for improved ways for your website visitors to connect with your sales or support teams.

OnSIP Cons

One downside to OnSIP is that you have to pay extra for the conference bridge. Most business phone system providers include this service in at least their upper tier packages. While being able to host calls with up to 15 people is nice, having to pay extra for it is not ideal. 

Another downside is that the video conferencing only lets you host meetings with up to five participants. Having such a low limit on how many people can attend your video conferences might not suit your needs. If you plan to have meetings with more than four other people, you may have to invest in a separate video conferencing service, which would increase your overall communication costs.

Customer Service 

You can contact OnSIP’s support team by phone or email. The website is filled with a several helpful training materials. You can find answers to everything from how to set up the system to how to use the mobile app.

OnSIP is an accredited member of the Better Business Bureau with an A+ rating. No complaints have been filed against the company in the past three years.

Editor’s note: Looking for the right business phone system for your company? Fill out the below questionnaire to have our vendor partners contact you about your needs.

default alt text


The Verdict

OnSIP's pricing structure and variety of features make it a good business phone system for small businesses.

Chad Brooks
Chad Brooks Staff
Chad Brooks is a writer and editor with more than 20 years of media of experience. He has been with Business News Daily and for the past decade, having written and edited content focused specifically on small businesses and entrepreneurship. Chad spearheads coverage of small business communication services, including business phone systems, video conferencing services and conference call solutions. His work has appeared on The Huffington Post,,, Live Science, IT Tech News Daily, Tech News Daily, Security News Daily and Laptop Mag. Chad's first book, How to Start a Home-Based App Development Business, was published in 2014.