OnSIP vs Ooma Office (2026): which should you pick?
As of Nov 12, 2026, Ooma Office grades higher than OnSIP: 2.4 against 2.0 out of 4.0.
Checked Oct 17, 2026 and Nov 12, 2026 · graded Oct 17, 2026 and Nov 12, 2026 by ToolGPA
OnSIP grades higher on platforms. Ooma Office grades higher on features and ease of use. They get the same grade on value for money and the free plan.
Price, platforms and features side by side. The table says where each price was read and when.
Ooma Office
Small business phone system with a virtual receptionist, no contract
Which one is for you
Pick OnSIP if
- Fits if you run a small office of five or more in the U.S. or Canada and want desk phones in the price
- Works for teams that already own SIP phones and would rather pay per feature
Look elsewhere if
- Skip it if you have fewer than 5 users, because Unlimited has a 5-user minimum
- Not for you if you are outside the U.S. and Canada, which the sign-up page says it does not serve
- Pricey if you need recording or queues, at $4.95 and $14.95 per user a month on top
- Watch out: E911 is $1.80 per user a month and each extra number is $2.00
- Watch out: there is no free plan and no trial
Pick Ooma Office if
- Fits if you want desk phones in the office without signing a long contract
- Works for businesses calling Canada and Mexico as well as the US
Look elsewhere if
- Tight if you text customers, as Essentials has no texting and Pro stops at 250 a month
- Pricey if you want AI transcripts and CRM links, which need Pro Plus at $29.95
- Skip it if you want to try it free first, as there's no trial on record
- Watch out: on Essentials the desktop app can't place calls, and the free toll-free number covers 500 inbound minutes
- Watch out: AI Receptionist and the AI Productivity Agent Bundle are add-ons priced through sales
How we grade them
| 2.0GPAOnSIPFair | 2.4GPAOoma OfficeFair | |
|---|---|---|
| Value for money | C$18.95 per user a month with a 5-user minimum, against a category middle of $19. The $49.95 pay-as-you-go account bills calls at 3.2 cents a minute on top. | C$19.95 a head for five on Essentials, no contract, right at the line into this category's dearer quarter ($19.99). Texting and desktop calling need Pro at $24.95, and AI transcripts, CRM links and chat need Pro Plus at $29.95. |
| Free plan and trial | FNo free plan and no trial on record. The listing shows only the paid Unlimited and Pay-as-you-go accounts. | FNo free plan and no free trial on record. You pay from the first month, though there's no contract to get stuck in. |
| Features | CAuto attendants, ring groups, ACD queues, SMS and MMS are all listed. But recording is $4.95 per user a month, enhanced queues $14.95 and E911 $1.80, so the basics come with a meter. | BUnlimited calls across the US, Canada, Mexico and Puerto Rico, a virtual receptionist, desk phone features like paging and call park, texting, video, chat, call queues and AI transcription. That's the whole job across its plans. |
| Ease of use | CNo store rating on record. It needs phones or apps set up, auto attendants and rules built, and each feature switched on and priced. | A4.9 from about 9,500 App Store ratings, the top score among the phone systems rated here. |
| Platforms and integrations | ASoftphone apps for Mac, Windows, Linux, iOS and Android, a browser app and any SIP device, plus HubSpot, Zendesk and Odoo and an open API. | BMac, Windows, iPhone and Android apps, a Chrome extension and desk phones, with Salesforce, HubSpot, Zendesk, Zoho, Pipedrive and Zapier. No web app in the listing, which keeps it off the top grade. |
| Best for | small offices that want phones in a per-user price | small offices with desk phones and no contract |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: OnSIP and Ooma Office. How we grade
Price against what you get
OnSIP starts at $18.95 a month for each person and scores 2.7 out of 4 on features, ease of use and platforms. Ooma Office starts at $19.95 a month for each person and scores 3.3.
Ooma Office scores higher, and starts $1 a month higher: the question is whether the extra is worth that to you. Of the other business phone systems on the chart, 4 score higher than OnSIP for less, and none scores higher than Ooma Office for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Ooma Office also covers transcription, team chat and video calls.
At a glance
| OnSIP | Ooma Office | |
|---|---|---|
| Pricing | Paid | Paid |
| Starts at | $18.95 per user / month (5-user minimum) | $19.95 per user / month, no contract |
| Free plan | None | None |
| Free trial | None listed | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| iOS | ||
| Android | ||
| Browser extension | ||
| Made by | Junction Networks | Ooma, Inc. |
| Price read from | onsip.com | ooma.com |
| Checked | Nov 12, 2026 | Oct 17, 2026 |
Worth knowing
OnSIP
- Unlimited needs at least 5 users; the Pay-as-you-go plan does not include calling minutes.
- Many features are paid add-ons: call recording is $4.95 per user a month and enhanced queues $14.95 per user a month.
- E911 is $1.80 per user a month and each extra phone number is $2.00 a month.
- The sign-up page says OnSIP does not service locations outside the U.S. and Canada.
Ooma Office
- On Essentials the desktop app cannot place calls and there is no texting; texting starts at 250 messages a month on Pro.
- AI transcription, CRM integrations, team chat and call queues need Pro Plus.
- The free toll-free number includes 500 inbound minutes a month, and calls to other countries are billed per minute.
- AI Receptionist and the AI Productivity Agent Bundle are add-ons priced through sales.
Key features
OnSIP
- Call handling
- Auto attendants, business-hour rules, ring groups, call parking, transfers, call screening and a dial-by-name directory.
- Call center options
- ACD queues, live queue dashboard, historical reporting, and monitor, whisper and barge, with queue features priced per user.
- SMS and MMS
- Business texting from your number in the apps; the Unlimited plan includes 250 messages per account, with 1 cent overage.
- Apps and phones
- Softphone apps for Mac, Windows, Linux, iOS and Android, a browser app, and any SIP-enabled device.
- Integrations
- Connections to HubSpot, Zendesk and Odoo, a Chrome extension, and an open API.
- Month-to-month terms
- The site describes month-to-month contracts with onboarding included, and lists each add-on feature with its own rate.
Ooma Office
- Virtual receptionist
- Greets callers with menus and custom greetings, answers questions such as opening hours and routes calls to people or departments.
- Calling across North America
- Unlimited calls to the US, Canada, Mexico and Puerto Rico, a direct number per user, one free toll-free number and free number porting.
- Desk phones and office features
- Works with IP desk phones, with intercom, overhead paging, call park, shared voicemail boxes and hot desking on Pro Plus.
- Texting
- Business texts from phones and computers with templates, scheduled and one-to-many messages: 250 a month on Pro and 1,000 on Pro Plus.
- Meetings and team chat
- Ooma Meetings video calls hold 25 people on Pro and 100 on Pro Plus, with screen sharing and recording; team chat comes with Pro Plus.
- AI add-ons
- Pro Plus transcribes and summarizes calls. AI Answering Service covers missed and after-hours calls from $14.99 per account a month.
Plans
OnSIP
Unlimited$18.95
per user / month, 5-user minimum
Unlimited standard calling, VoIP phones included, unlimited auto attendants, ring groups and recording users.
Pay-as-you-go$49.95
per month for the account
For low call volume: calling billed at 3.2 cents a minute, 1 auto attendant, 3 recording users, inbound SMS and MMS.
Ooma Office
Essentials$19.95
per user account / month, no contract
Unlimited calls in the US, Canada, Mexico and Puerto Rico, a virtual receptionist, the mobile app, one free toll-free number, fax and 10-person conference calls.
Pro$24.95
per user account / month, no contract
Adds calling from the desktop app, 250 texts a month, video meetings for 25, call recording and enhanced spam call blocking.
Pro Plus$29.95
per user account / month, no contract
Adds AI transcriptions and insights, CRM integrations, 1,000 texts a month, video meetings for 100, team chat, hot desking and call queues.
EnterpriseCustom
Adds SIP trunking, Microsoft Teams integration and direct routing, call center tools, advanced analytics and custom setup.
Ways to pay less
OnSIP
No public discounts listed.
Ooma Office
- Other savings
Free IP desk phones for a limited time
One free IP phone rental per user with a 1-year Pro or 3-year Office or Pro contract, or buy-one-get-one-free phones online with no contract.
Common questions
Which is cheaper, OnSIP or Ooma Office?
As of Nov 12, 2026, OnSIP is cheaper to start with: $18.95 a month for each person, against $19.95 a month for each person for Ooma Office. OnSIP starts at $18.95 per user / month (5-user minimum), and Ooma Office starts at $19.95 per user / month, no contract.
Which has a free plan, OnSIP or Ooma Office?
As of Nov 12, 2026, neither OnSIP nor Ooma Office has a free plan.
Which platforms do OnSIP and Ooma Office run on?
As of Nov 12, 2026, only OnSIP lists a web app and a Linux app and only Ooma Office lists a browser extension. Both list macOS, Windows, iOS and Android apps. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.