OnSIP® is a powerfully simple cloud communications service that combines traditional business communication features of a phone system with advanced web calling. We go beyond vanilla phone system capabilities by adding voice and video calling to your website. With OnSIP, you will delight your customers and prospects with instant, convenient, and timely options to talk right from your website.
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Is OnSIP legit?
OnSIP (onsip.com) has a 4.5 out of 5 rating on OK.one, based on 102 user reviews collected here. It is listed under Electronics & Technology and its reputation is excellent. 86% of reviews are 4 stars or higher and 9% are 1 star; The business has replied to 40% of negative reviews; Reviews mostly discuss Customer service, User experience. Last updated 2026-08-12.
What reviewers say
AI generated
Reviewers overwhelmingly had a great experience with this company. Customers frequently praise the dedicated support team for their remarkably prompt responses, deep technical knowledge, and genuine willingness to guide users through complex system setups with absolute ease. Consumers consistently state that representatives are exceptionally kind, patient, and always accessible to provide clear, helpful solutions whenever questions or operational challenges arise during the day.
However, some people mentioned encountering frustrating technical difficulties, such as portal ticket submission errors, unexpected API problems, or sudden service disruptions without receiving sufficient advance warning from the staff. A small group of reviewers also noted occasional communication hurdles and restrictions that made it difficult to resolve specific account management issues promptly.
Auto-generated from all reviews of this business. For reference only.
I appreciate that the app update receives the calls more reliably. However, I really need to see the phone number of the caller after I answer the call. Is there a way for the app to let me see the number I have answered or the number I have missed? I do not have access to the history of the incoming calls on the app because I am not the administrator, so having the number is very important. Also, I would prefer that the ringtone not be the same as my cell number. This helps distinguish between work and personal calls. Thank you for these considerations.
Reply from OnSIP2026-08-11
Hi, Monica. Thank you for taking the time to share your experience with our softphone app! I’ll make sure your feedback is passed along to our team for their review. -Joe
Support got back to me quickly and explained themselves well. While we didn't get the feature we needed, it at least made sense why we couldn't have it.
Reply from OnSIP2026-08-11
Hey, Brian: Thanks for your thoughtful feedback! I'm glad our team could provide a clear explanation, and we appreciate your understanding. -Joe
The customer service representative was very knowledgeable and helpful when assisting me with my problem of trying to connect an unsupported phone. They asked good questions and provided a working solution and potential further help.
Reply from OnSIP2026-06-24
Hi, Erin, thank you for the kind words! We're glad our support team was able to help you and provide a solution, and we appreciate you taking the time to share your experience. -Joe
Thank you for taking the time to share your feedback—we're sorry to hear your experience with OnSIP fell short of expectations. We'd like to understand what happened. I'll reach out to you over email. -Joe
All of the support team that I have worked with over the years are very courteous, extremely knowledgeable and professional. They can usually get my question answered and resolve quickly. I have not had a bad experience yet. And we have been working with Onsip for many years.
Reply from OnSIP2026-06-12
This is fantastic to hear! Jay, thank you so much for your long-term support of OnSIP, we truly appreciate it! -Joe
yes! just sometimes calls don't get connected or come all at once and I end up with lots of missed calls.; sometimes. but over all great!
Reply from OnSIP2026-05-01
Hi, Stephanie. Thank you for your feedback! If you continue to experience these issues, please keep reaching out to our support team. They are the best group of people to help you troubleshoot! -Joe
Call quality is great, and support is top-notch.
Two issues:
1. General issues with Call history not storting. Call history sometimes disappears on close, isn't consistent across apps/devices, and though it shows the caller ID when someone is calling, it does not show it in history. (issue confirmed by support) I understand I can see the complete history as an admin, but it should be available to the user, also.
2. If you set DND in the app, it sets DND for your entire account across multiple apps and devices. I should be able to turn off the ring on my cellphone and have my desk phone still ring. (also confirmed by support)
Reply from OnSIP2026-05-13
Hi, Wayne! Thank you for this thoughtful feedback, and for confirming the items with our support team. We'll make sure it gets in front of the product team for their review, as well. -Joe
Hi, Logan. I'm sorry, but I don't understand. OnSIP has phone numbers available for purchase in area codes across the U.S. (See https://www.onsip.com/pricing/phone-number-availability ). If you need assistance, please feel free to contact our support team. Thanks. -Joe
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