# OnSIP Reviews **Vendor:** OnSIP **Category:** [VoIP Providers](https://www.g2.com/categories/voip-providers) **Average Rating:** 4.1/5.0 **Total Reviews:** 28 ## About OnSIP OnSIP is a leading provider of real-time communications (RTC) services to more than 100,000 customer accounts. OnSIP business VoIP customers enjoy the benefits of an on-demand phone system without the traditional high cost, burden, and inflexibility. The company also offers a cloud platform and simple APIs for developers to rapidly and affordably build RTC applications of their own. ## OnSIP Pros & Cons **What users like:** - Users highly value the **extremely responsive customer support** of OnSIP, noting their patience and problem-solving assistance. (1 reviews) - Users appreciate the **exceptionally responsive customer support** of OnSIP, which empowers them to effectively resolve issues. (1 reviews) - Users praise the **extremely responsive customer support** , valuing their patience and ability to resolve issues effectively. (1 reviews) - Users value the **quick setup** process of OnSIP, enhanced by responsive and knowledgeable customer support for immediate assistance. (1 reviews) - Users value the **extremely responsive customer support** from OnSIP, which empowers them to solve problems effectively. (1 reviews) **What users dislike:** - Users face significant **performance issues** with OnSIP, including a buggy iPhone app and frequent desktop restarts. (1 reviews) - Users face **platform issues** with OnSIP, including a buggy iPhone app and frequent desktop application restarts. (1 reviews) ## OnSIP Reviews ### 1. Fantastic US-Based Support Team Makes All the Difference **Rating:** 4.5/5.0 stars **Reviewed by:** Leah T. | Marketing/Sales/Customer Service, Small-Business (50 or fewer emp.) **Reviewed Date:** December 18, 2025 **What do you like best about OnSIP?** Their US-based customer support team is EXTREMELY responsive, knowledgable, understanding, and helps empower me to problem solve and find solutions on my own; they're also more than happy to help with quick fixes or issues where it is, in fact, user error or I'm missing something. Very patient, considerate, educated, and ready to solve the problem immediately. **What do you dislike about OnSIP?** The iphone app is buggy, desktop app often requires multiple shut downs and restarts day-to-day to get it to work. **What problems is OnSIP solving and how is that benefiting you?** Phone answering, call tree, answering across multiple devices, transferring calls ### 2. ONSIP is great! **Rating:** 5.0/5.0 stars **Reviewed by:** Paula M. | Administrator, Small-Business (50 or fewer emp.) **Reviewed Date:** October 15, 2021 **What do you like best about OnSIP?** Onsip has always been there for us. Their customer service is fantastic! Whenever we had a question or issue, it was resolved immediately. There is always a live person to speak with on the phone, and they answer your calls with no waiting time. Onsip has made having a VOIP phone service extremely easy to maintain, as well as providing a value for your dollar. Additionally, the phone reps are very friendly and courteous. **What do you dislike about OnSIP?** Honestly, I can't really say I dislike anything about Onsip. **What problems is OnSIP solving and how is that benefiting you?** Onsip makes it easy to create our phone recordings and attendants' menus and toggle between them whenever we like. We also like that we can receive email voicemails and have a conference bridge that works extremely efficiently. We find that the service is a very good value. And we also like that should we ever have a problem, the issue is resolved immediately, and we don't have any business interruptions. ### 3. Versatile and helpful. **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** May 19, 2022 **What do you like best about OnSIP?** I like the web app, the computer download, and the app functionality. This gives me the flexibility needed for all types of work settings. I also like the system check functionality as well. **What do you dislike about OnSIP?** No downsides! It might be nice to change the ringtone. **What problems is OnSIP solving and how is that benefiting you?** I am reaching customers in a hybrid work environment. One benefit is being able to transfer calls to other coworkers who are at home too. ### 4. Fantastic Product with Incredible Customer Service **Rating:** 5.0/5.0 stars **Reviewed by:** Andraya Y. | Managing Director of Partnerships and Development, Mid-Market (51-1000 emp.) **Reviewed Date:** December 01, 2021 **What do you like best about OnSIP?** OnSip is a great platform that can be customized in so many ways to serve a variety of purposes. I was hosting a fundraising event that needed a 1-800 number routed to make-shift call center. It was a very specific request and OnSip walked me through the entire setup live and provided day-of tech support. The support team member even did a very professional recording for when you called into the 1-800 number at no additional cost. The support allowed for 100s of phone calls to ping to a call center staffed by 10 volunteers on laptops for the fundraiser. There was not one issue the entire day. What I love about Onsip is the customization, it can do whatever you need it to do and the live and easy-to-access support can walk you through the setup that fits your needs. I had spoken with ATT and Comcast to set up the 1-800 lines and it was going to be so expensive, involved drilling and rolling out phone lines on the floor. I spoke with Zoom and the customer support was dismal, I was contacted by sales people trying to sell me large packages and there was no tech support for setting up event and delays between communication. I wish I had found Onsip earlier as it was such a simple solution with phenomenal customer service. I will definitely be using them again for specialty events. **What do you dislike about OnSIP?** Absolutely nothing. I have never had such a positive experience with a tech company. I think they could do a better job of advertising because, based on my experience, they are far superior to Google meets, Hangouts, Microsoft Teams, etc but it took me some digging and research to find them. **Recommendations to others considering OnSIP:** If you have the opportunity to ditch Zoom, Teams, Hangouts, etc - switch to Onsip, the customer serice alone is worth it! **What problems is OnSIP solving and how is that benefiting you?** It's an excellent platform for events or large meetings. It could also be a phenomenal tool for a company in need of a customer service hotline. We were able to take hundreds of calls, and it was so easy to use volunteers of all ages were able to answer calls on the platform without any isses. ### 5. Great service at an affordable price **Rating:** 5.0/5.0 stars **Reviewed by:** Michael D. | Marketing Director, Small-Business (50 or fewer emp.) **Reviewed Date:** October 22, 2021 **What do you like best about OnSIP?** What OnSIP does better than our previous VOIP phone service is pretty much everything. You can transfer phones between users effortlessly when they are away for vacation. Voicemail is way easier to manage. Their desktop app works well and makes inter-office calling a breeze. You can literally transfer calls by dragging and dropping it on the proper user. We set up our 1-800 number with a menu in the system and had it ready to go in less than 10 minutes. **What do you dislike about OnSIP?** I wish we had found it sooner. Maybe they could have more choices for hold music? **Recommendations to others considering OnSIP:** If you're considering OnSIP, I have only good things to say about them. On top of all the benefits, they have a very responsive support team! **What problems is OnSIP solving and how is that benefiting you?** We can quickly manage users, numbers, phones, and extensions. ### 6. Good service and support **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Medical Devices | Small-Business (50 or fewer emp.) **Reviewed Date:** May 16, 2022 **What do you like best about OnSIP?** Great support staff, solid reliable service when using for deskphone. Easily navigable and customizable user interface. **What do you dislike about OnSIP?** Softphone and app aren't super reliable. **Recommendations to others considering OnSIP:** As long as you don't need the app or softphone functionality too much, great solution. **What problems is OnSIP solving and how is that benefiting you?** We use OnSIP for our main phone line. we stay connected as a team, and do all our customer service through their VoIP. ### 7. Poor quality **Rating:** 1.0/5.0 stars **Reviewed by:** Gwen A. | C, Small-Business (50 or fewer emp.) **Reviewed Date:** July 02, 2021 **What do you like best about OnSIP?** That I can use it on my cell phone, but only when connected to WiFi **What do you dislike about OnSIP?** That I have to be connected to WiFi for the mobile feature to work. Also, we have a lot of issues with sound cutting out. Doesn't feel very professional when talking with clients. **Recommendations to others considering OnSIP:** There's got to be something better out there. **What problems is OnSIP solving and how is that benefiting you?** I am able to work remotely, which is a plus because I travel a lot. ### 8. Decent for Small Business **Rating:** 5.0/5.0 stars **Reviewed by:** Stephan A. | President EBF Consulting, Small-Business (50 or fewer emp.) **Reviewed Date:** September 27, 2021 **What do you like best about OnSIP?** Great for small business since it is easier to manage than an actual PBX. Easy to use. Fair amount of functions. the customer service team is friendly and professional, knowledgeable, and resourceful. **What do you dislike about OnSIP?** Limited interaction with company. Need to reach out to keep communication open and learn about different services. Presented with a third party reseller only to open tickets. Do not use Cloud 9. Waste of money, you can do this yourself or interact with tech support from Onsip. **What problems is OnSIP solving and how is that benefiting you?** It is good for accessing voicemail, receiving calls on multiple devices, and queing up multiple calls. It is easily manageable platform. ### 9. Quality Service, Affordable Price **Rating:** 4.5/5.0 stars **Reviewed by:** Joe L. | IT Manager, Mid-Market (51-1000 emp.) **Reviewed Date:** June 22, 2021 **What do you like best about OnSIP?** OnSIP is a fantastic service. The pricing cannot be beaten for phone service. We are using the service in a small manufacturing facility. I've managed the IT department of a similar sized organization and we were paying 10 times as much using a traditional phone service. The support team is very responsive. If you have an issue or a question, reach out to them. They respond right away. The service supports a wide range of IP phones. We are using Cisco phones on the network and they work great. When we needed to add a cordless phone, we were able to add one by a different vendor and it works great. **What do you dislike about OnSIP?** Sometimes the setup of the phones can be a hassle. I've struggled to get some of the Cisco phones to adopt to the network. Not sure if it is a hardware problem or a problem with the service. **What problems is OnSIP solving and how is that benefiting you?** We are experiencing a huge cost savings using OnSIP. This is the biggest and best benefit we have recieved. ### 10. Pleased with customer service but some functionality could be simpler. **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Non-Profit Organization Management | Small-Business (50 or fewer emp.) **Reviewed Date:** February 11, 2022 **What do you like best about OnSIP?** The dashboard and app. And ability to get calls on my personal cell. **What do you dislike about OnSIP?** Changing users is way too difficult. We experience consistent turnover by season and it seems like it should be easier to make changes to names, extensions, etc. **What problems is OnSIP solving and how is that benefiting you?** No problems; benefits are ability to log in from home and use app on cell. Another plus is ability to get voicemails as emails. ### 11. Cygnet **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Performing Arts | Small-Business (50 or fewer emp.) **Reviewed Date:** November 26, 2021 **What do you like best about OnSIP?** Flexibility of location. Price per line is competitive. **What do you dislike about OnSIP?** App has issues connecting. Loses calls as they come in. Occasionally loses calls after connecting. Business Rules needs a holiday schedule option. Control of who is an admin should be self-managed and not need to go through support. **What problems is OnSIP solving and how is that benefiting you?** Staff have contacted Onsip regarding the lost calls before. Usually just told to restart the app. Need a better solution. ### 12. Onsip Is AMAZING! **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Legal Services | Small-Business (50 or fewer emp.) **Reviewed Date:** January 28, 2022 **What do you like best about OnSIP?** I like the option of working mobile and being able to change who we have taken reception calls **What do you dislike about OnSIP?** ehh the app slacks a lot, its not fast and takes time to cancel calls **What problems is OnSIP solving and how is that benefiting you?** None currently ### 13. I like to commend the rep Vicky. She helped me thoroughly and got my access back to the system! **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Small-Business (50 or fewer emp.) **Reviewed Date:** December 18, 2021 **What do you like best about OnSIP?** The sleek interface design of the system very easy to use tool **What do you dislike about OnSIP?** Sometimes, it will log me out automatically; sometimes, calls will not go through. Very seldom though. **Recommendations to others considering OnSIP:** Minimal bug. Fixable though. **What problems is OnSIP solving and how is that benefiting you?** Login issues. When the system auto-logged me out, I called CS (though waiting was extended). I got a very knowledgeable rep. ### 14. Onsip VOIP. Best PBX out there **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Hospital & Health Care | Small-Business (50 or fewer emp.) **Reviewed Date:** January 18, 2022 **What do you like best about OnSIP?** Customization is easy to fit our needs and wants. **What do you dislike about OnSIP?** Being able to with one click add a holiday schedule for all our offices would be good **What problems is OnSIP solving and how is that benefiting you?** Being able to customize the wants and needs of each office. ### 15. Some issues are having to restart PCs because the OnSIP will not ring. OnSIP drops calls too. **Rating:** 3.0/5.0 stars **Reviewed by:** Melissa B. | A, Small-Business (50 or fewer emp.) **Reviewed Date:** July 19, 2021 **What do you like best about OnSIP?** The service is easy-to-use. The settings are easy to change. **What do you dislike about OnSIP?** We would love the following enhancement: When multiple PCs are logged into the same account and someone is answering a call, to not have another call ring over the current call. It makes it hard for staff to hear. **Recommendations to others considering OnSIP:** If not using it with a physical phone, carefully consider headsets **What problems is OnSIP solving and how is that benefiting you?** OnSIP allows staff to be able to take their PCs/laptops anywhere in the building without being tied to a physical phone. ### 16. Great VoIP service at a competitive price **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Mid-Market (51-1000 emp.) **Reviewed Date:** June 19, 2021 **What do you like best about OnSIP?** The customer support. I can submit a ticket to an email address and get a response in less than an hour. Their team is top-notch! **What do you dislike about OnSIP?** The only thing I consider worth complaining about is the admin portal. I'd like more customizability, like sorting each column of data in the different sections by clicking on the headers. I asked support about this feature and they said it was in the works, but that was years ago now. **What problems is OnSIP solving and how is that benefiting you?** After switching from a landline system to VoIP a few years back, we've been way more flexible with how our employees access their phone lines, voicemails, etc. If we hadn't yet switched over to VoIP when the pandemic hit in 2020, I don't know what we would've done! ### 17. Onsip just works **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Medical Devices | Small-Business (50 or fewer emp.) **Reviewed Date:** October 25, 2021 **What do you like best about OnSIP?** Price is really good and features all the items you need. **What do you dislike about OnSIP?** No much, the service works and is reasonable. They actually answer the phone when you call. **What problems is OnSIP solving and how is that benefiting you?** Phone service for small businesses. ### 18. Onsip Review **Rating:** 4.0/5.0 stars **Reviewed by:** Rikin P. | IT Support Specialist, Mid-Market (51-1000 emp.) **Reviewed Date:** November 25, 2020 ### 19. Needs three way conferencing option **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Small-Business (50 or fewer emp.) **Reviewed Date:** September 03, 2021 **What do you like best about OnSIP?** Can use app or website. Pretty easy to use. **What do you dislike about OnSIP?** Unable to do a three way conference call. **Recommendations to others considering OnSIP:** None to add **What problems is OnSIP solving and how is that benefiting you?** Easy for everyone to access remotely and not have a physical phone on the desk. ### 20. My experience with Onsip has been pretty good. **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Building Materials | Small-Business (50 or fewer emp.) **Reviewed Date:** August 02, 2021 **What do you like best about OnSIP?** I have experienced quick customer service. **What do you dislike about OnSIP?** The back end is not especially intuitive and call recording is outsourced. **What problems is OnSIP solving and how is that benefiting you?** It integrates with our ERP Odoo. ### 21. User-friendly app and positive experiences with customer service any time I've had to call. **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Non-Profit Organization Management | Small-Business (50 or fewer emp.) **Reviewed Date:** June 22, 2021 **What do you like best about OnSIP?** The ability to log in to the app from anywhere. **What do you dislike about OnSIP?** It is difficult to change/update names on the phones, as well as change the recording that automatically starts when our customers call. **What problems is OnSIP solving and how is that benefiting you?** Easier communication within the office and for remote personnel. ### 22. Onsip calling **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Individual & Family Services | Mid-Market (51-1000 emp.) **Reviewed Date:** September 28, 2020 **What do you like best about OnSIP?** I like Onsip because while working from home during this ongoing COVID-19 pandemic I get all my calls going to my office phone forwarded to my agency cell phone. Therefore I do not miss getting any important phone calls **What do you dislike about OnSIP?** There is nothing to dislike about Onsip. **What problems is OnSIP solving and how is that benefiting you?** while working from home during this ongoing COVID-19 pandemic I get all my calls going to my office phone forwarded to my agency cell phone. Therefore I do not miss getting any important phone calls ### 23. Consistently good service and support **Rating:** 4.0/5.0 stars **Reviewed by:** Sam J. | Software Developer, Computer Software, Mid-Market (51-1000 emp.) **Reviewed Date:** July 20, 2019 **What do you like best about OnSIP?** Their support team is one of the best that I have had the pleasure of interacting with. Onsip as a VoIP vendor has promised and consistently managed to deliver good service. We've used them in our business before and not a single customer has reported any issue with the service. **What do you dislike about OnSIP?** It does not allow you to send SMS texts, which is something some of our clients wished it had. Once texting is available, it'll make a good replacement for mobile phones for lower price. **Recommendations to others considering OnSIP:** For a small price of $19 per month, Onsip is way too good and offers so much. If you're using a Mac, be aware that conferencing isn't possible yet. For others, you have the option to use a free trial of Onsip for a month before you make up your mind on wanting to pay for it or not. **What problems is OnSIP solving and how is that benefiting you?** I absolutely love the benefits such as having voice mails being sent directly to my email, recording all incoming and outgoing calls, etc. Onsip has also helped us greatly reduce our expenses compared to our local phone service provider. ### 24. Excellent business phone system, offering advanced features on a budget! **Rating:** 5.0/5.0 stars **Reviewed by:** Sam S. | Chief Technology Officer, Computer & Network Security, Small-Business (50 or fewer emp.) **Reviewed Date:** March 04, 2019 **What do you like best about OnSIP?** The flexibility of the configuration, I can easily route calls exactly as I want them to go. Easy to setup call recording with an external cloud storage service which is much better than many internal offerings. Inexpensive! Many of the features offered with OnSip cost much more with other companies, and aren't have as reliable or easy to configure. **What do you dislike about OnSIP?** Would be nice if it included texting, would make it a full-featured cell phone replacement. Very little to dislike about this phone system however, I have actually had zero problems that couldn't be resolved with a simple phone call or chat. **Recommendations to others considering OnSIP:** Try it! It's free for 30-day and the quality of service and support is excellent. **What problems is OnSIP solving and how is that benefiting you?** Meets compliance needs by recording all incoming and outgoing calls. Helped reduce cost by allowing an external SIP bridge to bring in the toll-free calls, along with having a per-user/line cost that is 1/3 the cost of most companies out there. Has Odoo integration, which will allow us to integrate the phone with the CRM. ### 25. Very reliable but fairly bare bones system **Rating:** 4.0/5.0 stars **Reviewed by:** Alex H. | Chief Operating Officer, Hospital & Health Care, Small-Business (50 or fewer emp.) **Reviewed Date:** November 16, 2018 **What do you like best about OnSIP?** We have had zero downtime issues in the time that we've used the system. **What do you dislike about OnSIP?** It has only very basically functionality and doesn't come with a mobile softphone. **What problems is OnSIP solving and how is that benefiting you?** Moving over to a voip system has saved us a bunch of time and the smart routing has been helpful with our team. The setup was fairly easy compared to other phone systems we've used. ### 26. Great for voicemail to email services! **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Research | Small-Business (50 or fewer emp.) **Reviewed Date:** June 03, 2019 **What do you like best about OnSIP?** Works every time and provides accurate information! **What do you dislike about OnSIP?** Nothing! Onsip has never failed to come through! **What problems is OnSIP solving and how is that benefiting you?** Routing voicemails to Inboxes. Saves time and keeps everything in one place! ### 27. Comfortable user interface **Rating:** 2.5/5.0 stars **Reviewed by:** Verified User in Health, Wellness and Fitness | Small-Business (50 or fewer emp.) **Reviewed Date:** September 14, 2018 **What do you like best about OnSIP?** The interface is simple and easy to understand **What do you dislike about OnSIP?** Nothing that I can think of, perhaps haven't used it enough **What problems is OnSIP solving and how is that benefiting you?** Improvements over other (cheaper) VOIP providers, much easier to navigate ### 28. Minimally involved in implementation for my company, but am an Admin **Rating:** 2.5/5.0 stars **Reviewed by:** Verified User in Hospital & Health Care | Small-Business (50 or fewer emp.) **Reviewed Date:** June 06, 2018 **What do you like best about OnSIP?** Fairly straightforward interface; reliable **What do you dislike about OnSIP?** Nothing yet, I find it pretty easy to use. **What problems is OnSIP solving and how is that benefiting you?** Helped us resolve unreliable phone calls and connections with other providers ## OnSIP Discussions - [How much does OnSIP cost?](https://www.g2.com/discussions/how-much-does-onsip-cost) - 1 comment - [How does OnSIP work?](https://www.g2.com/discussions/how-does-onsip-work) - 1 comment - [View OnSIP pricing details and edition comparison](https://www.g2.com/products/onsip/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-03+06%3A44%3A40+-0500&secure%5Bsession_id%5D=4fd039ff-ba54-4ade-83e5-6f1db68c5f8a&secure%5Btoken%5D=944aad52368cf3c3bed6ca69976b145fa23f2f5a3884f08051ecebf3e3b688eb&format=llm_user) ## OnSIP Features **Platform Basics - VoIP Providers** - PBX systems, VoIP Softphone - Call Management - Network monitoring - Integrations - Virtual PBX - SIP trunking services **Basic Communication** - Phone Calls - Video Calls - Instant Messaging - Screen Sharing - Conference Calls - Desk-to-Desk Calls **Agentic AI - VoIP Providers** - Autonomous Task Execution - Cross-system Integration - Adaptive Learning - Proactive Assistance **Access** - Software Pairing - Browser Extension - Individual Download **Advanced Features** - Hold Music - Automated Attendants - VOiP Number ## Top OnSIP Alternatives - [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) - 4.4/5.0 (1,388 reviews) - [RingEX](https://www.g2.com/products/ringex/reviews) - 4.2/5.0 (1,339 reviews) - [Vonage Business Communications](https://www.g2.com/products/vonage-business-communications/reviews) - 4.3/5.0 (475 reviews)