Total Products under this Category: 494
Last updated: October 20, 2026
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Highlighted products: RingEX, Nextiva, Zoom Phone, Quo, Dialpad Connect, Webex Suite, Webex Calling, and Aircall.
Underlying data: [Grid® JSON](https://www.g2.com/categories/voip-providers/grids.json?focus%5B%5D=ringex&focus%5B%5D=nextiva&focus%5B%5D=zoom-zoom-phone&focus%5B%5D=quo-quo&focus%5B%5D=dialpad-connect&focus%5B%5D=cisco-webex-suite&focus%5B%5D=webex-calling&focus%5B%5D=aircall)
UNIFIED COMMUNICATIONS Voice, messaging, video conferencing and screen sharing all in one Cloud or On-Premise
The OfficeSpaces.co VOIP Phone System is a modern, cloud-based business communication solution designed to replace traditional phone lines with a fully integrated, internet-powered system. Built for startups, small businesses, and growing teams, it enables organizations to manage calls, messaging, and team communications from anywhere—without the need for physical phone hardware.
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Omnivoice is the fast, secure & powerful answer to your business communication needs. Users can expect: - Some of the best pricing options on the market. - Unmatched voice clarity for uninterrupted conversations. - An intuitive platform that is almost too easy to navigate. - Essential communication tools including business numbers and messaging services. - Advanced call management to optimize client interactions. - Admin tools for effective team management. All these features are backed by responsive support, ready to assist users in maximizing the platform's potential. Omnivoice aims to be the reliable communication backbone for small businesses.
Effective communications systems are critical to every business as they respond to the demands of todays work environment.
OnSwitch provides 24/7 technical support and cloud-based phone solutions for small and mid-sized businesses.
OpenScape 4000 delivers converged IP and TDM infrastructure that lets you migrate at your own pace—whether maintaining on-premises control, deploying VMware-based private cloud, or implementing hybrid configurations. This architectural flexibility protects your investment while supporting modern SIP-based communications and legacy digital endpoints simultaneously. Built on proven enterprise technology with active-standby dual node architecture, OpenScape 4000 ensures zero calls lost during system failovers while supporting up to 12,000 users on a single system. Mitel licensing enables seamless portability across the entire OpenScape solution family, protecting your software investment as business requirements evolve.
Optus Loop Live lets you use business phone features on your mobile or PC with a monthly subscription and the Optus Loop Live app.
As one of the UK's leading VoIP providers, we provide business telephone systems for companies of all sizes.
Aragonese company leader, specialized in business consulting services, technological, digital and outsourcing services.
The Nordic region's leading telephone system replaces the traditional switchboard.
The PBXact Business phone system is a fully-featured IP-PBX designed with unified communication features for organizations needing mobility, productivity and collaboration capabilities.
PBXflex is a cloud business phone system with calling, business texting and fax in one app. It works on desk phones, the web and mobile. It’s built for offices that live on the phone, especially healthcare practices and accounting and tax firms. These teams need calls answered, texts kept in one shared inbox, and a fax line that still works. Calling Every user gets an extension and a local phone number. Toll-free numbers are available too. Auto attendants (IVR), ring groups and shared voicemail Call queues where a caller can choose a callback instead of holding Conference rooms and intercom paging E911 addresses registered for each extension Business texting SMS and MMS from your business numbers, included on every plan Texting campaigns registered for 10DLC, with automatic STOP/HELP replies Fax Send and receive faxes in the app, included on every plan Integrations Two-way Google Contacts sync Alerts for unanswered texts in Microsoft Teams, Slack, Google Chat and Discord Plans and terms Essentials and Business plans are priced per user. Text & Fax is for teams that keep their current phone system. Enterprise is for 50+ users or multiple sites. Month to month, cancel any time, no contract Number porting is free Usage is billed in telecom credits (one credit is one US cent), and the rates are published No administrative or “regulatory recovery” fee Pricing: https://www.pbxflex.com/pricing
