OnSIP (Ooma)
Procurement partnerAbout
OnSIP, operated by Junction Networks, provides hosted VoIP and cloud PBX services to businesses. The platform delivers voice, SMS/MMS, video calling, conferencing, and collaboration tools through a cloud-based infrastructure with high redundancy and patented technology. They have served over 150,000 business accounts since their founding in 2004.
Details
VenSearch Intelligence
Ideal Customer
- OnSIP's sweet spot is small to medium-sized businesses (SMBs) and distributed or remote teams that need enterprise-grade communication features without long-term contracts, high upfront costs, or complex on-premise infrastructure.
- The Unlimited Plan is designed for accounts with a minimum of 5 users, making it best suited for teams of 5 to a few hundred employees.
Key Differentiators
- OnSIP differentiates itself through its open-standards-based architecture built on WebRTC and SIP, its creation and ongoing maintenance of the widely used open-source SIP.js JavaScript library, and its month-to-month contract flexibility with no on-site hardware requirements.
- The company has been recognized as a Gartner Cool Vendor in Unified Communications, named one of CIOReview's 20 Most Promising UCaaS Providers, won a Silver Stevie Award in the 2017 American Business Awards for its developer platform, and received the Excellence in Customer Service Award from Business Intelligence Group for four consecutive years through 2022.
Industries Served
- OnSIP serves customers across virtually all industries, with particular strength in education, finance, healthcare, legal, real estate, technology, nonprofits, manufacturing, retail, and seasonal businesses.
- The platform is noted for being configurable for HIPAA-compliant healthcare communications, and its native Odoo integration makes it a strong fit for manufacturing and distribution companies using ERP systems.
Service Coverage
- OnSIP primarily operates in the United States, with its parent company Ooma offering solutions in the U.S. and Canada, and limited offerings in certain other countries.
- OnSIP's unlimited calling plan covers more than 20 countries for outbound calls.
Partnerships
- OnSIP maintains deep native integrations with Odoo (since 2017, recognized as a trusted VoIP provider built directly into Odoo's platform), HubSpot CRM, and Zendesk, as well as a Google Chrome Extension ecosystem and an Open API built around the open-source SIP.js library.
- Hardware partnerships include Poly and Yealink for VoIP desk phones provisioned through OnSIP's Open Compliant Boot Server.
Company Size & Ownership
- OnSIP was founded in 2004 as Junction Networks, Inc. and had approximately 58 employees at the time of its acquisition.
- It was acquired by Ooma, Inc. (NYSE: OOMA) on July 22, 2022, for approximately $9.5 million in cash.
Compliance & Certifications
- OnSIP supports encrypted communications using SIP over WebSocket Secure (RFC 7118) with DTLS-SRTP for its browser, desktop, and mobile apps, and SDES-SRTP for TLS-registered desk phones, providing end-to-end encryption across its platform.
- The system is noted by third-party reviewers as being configurable to meet HIPAA requirements for secure healthcare communications when properly set up.
Compiled from public sources by VenSearch · Last researched October 14, 2026
Offerings
19 offerings5-Room Video Calling
A video conferencing feature available in the OnSIP web and desktop apps that allows users to host and join video conference calls with up to 5 participants, including both internal colleagues and external participants. Available as part of the collaboration feature set.
Business SMS and MMS
A built-in business messaging feature that allows users to send and receive text and multimedia messages (images, videos, PDFs, vCards, calendar reminders) from their existing business phone numbers within the OnSIP app. Includes threaded chat-style interfaces, delivery confirmation, analytics dashboard, downloadable reports, and 10DLC compliance support. Available on both Basic and Unlimited plans.
Call Recording
A feature that records calls and uploads them to any compatible cloud storage provider. Enhanced Queue Recording extends this to automatically capture all calls to and from any agent in a queue.
Enhanced ACD Queues
An advanced inbound call center feature that provides call monitoring, call distribution, and agent management tools for sales and support teams. Includes live queue dashboards, historical queue reporting, queue alerts, queue failover, enhanced queue recording, and supervisor and agent login controls. Also supports Monitor, Whisper, and Barge functionality for supervisors.
Google Chrome Extension
A browser extension for Google Chrome that allows users to click on any phone number displayed in the browser window to automatically dial it through the OnSIP app. Streamlines outbound calling from web-based workflows.
HD Conference Suites / Audio Conference Suites
An audio conferencing feature that lets users host calls for up to 15 simultaneous callers at a designated extension or phone number. Available as both HD Conference Suites (with a phone number) and Audio Conference Suites (extension only) within the OnSIP platform.
Hosted VoIP / Cloud PBX (Basic Plan)
A hosted VoIP plan designed for customers with lower call volumes, priced at $49.95 per month per account with calling minutes not included. Provides access to core OnSIP features including SMS and MMS, voicemail, auto attendants, and the admin portal. Operates on month-to-month terms with no on-site PBX hardware.
Hosted VoIP / Cloud PBX (Unlimited Plan)
An all-in-one business phone system priced at $18.95 per user per month with a minimum of 5 users. Includes free best-in-class VoIP desk phones, unlimited calling to more than 20 countries, and the full suite of OnSIP features including call center, collaboration, and admin tools. Operates on month-to-month contracts with no on-site PBX hardware required.
HubSpot Integration
An integration that displays a caller's HubSpot record within the OnSIP app when a call comes in, with a direct link to open the full record in HubSpot. Allows sales and support teams to access CRM data without leaving the OnSIP interface.
Odoo Integration
An integration that enables VoIP calling directly from the Odoo CRM and ERP dashboard. Provides click-to-call ability, incoming call popup notifications, and connects the OnSIP hosted platform with the Odoo environment.
OnSIP Browser App
A softphone application available directly in Chrome, Firefox, or Opera web browsers, allowing users to make and receive calls without installing additional software. Supports end-to-end encryption and integrates with the OnSIP platform.
OnSIP Desktop App
A softphone application available for Mac, Windows, and Linux computers that enables users to make and receive calls, send SMS/MMS, manage voicemail, and administer their account. Supports 5-room video calling and end-to-end encryption.
OnSIP Mobile App
A softphone application available for iOS and Android devices that allows users to make and receive work calls from their OnSIP extension while on the go. The app integrates calling, texting, and voicemail in a single interface and supports end-to-end encryption.
Open API Integration
An open API that allows developers to add real-time communications capabilities to their own applications by leveraging the OnSIP platform. Built by the creators of sip.js, it enables custom integration of voice and messaging features.
Partner / Reseller Program
OnSIP offers a channel partner program allowing third parties to resell or refer OnSIP hosted VoIP services. Channel sales inquiries are handled separately from direct sales, indicating a structured partner channel.
Phone Number Provisioning and Porting
OnSIP offers phone numbers for purchase from many different area codes, available immediately upon ordering across a range of rate centers. OnSIP also assists customers with porting existing numbers from a previous provider into their OnSIP account.
SIP Domain Hosting
A feature that allows businesses to use their own domain name with their OnSIP Hosted PBX, providing a branded SIP environment for their communications infrastructure.
VoIP Phone Hardware (with Unlimited Plan)
Best-in-class VoIP desk phones from Poly and Yealink are included free with the OnSIP Unlimited Plan for accounts with a minimum of 5 users. Phones are provisioned automatically via OnSIP's Open Compliant Boot Server.
Zendesk Integration
An integration that automatically creates a Zendesk ticket when an agent answers a call, assigns it to the agent, and populates it with basic call information. Streamlines support workflows by linking phone activity to the Zendesk ticketing system.
Considering OnSIP (Ooma)?
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