Microsoft Teams Phone
Provider 
Founded 1975
Sells To Enterprises, Small Business
Pricing Model SaaS, Transactional
Ownership Public

Microsoft Teams Phone System for business calling in M365.
Voice extension for Microsoft Teams with calling, routing. Competitor/supplement target for RingEX per RingCentral Direct Routing and alternatives pages.
From RingCentral vs Microsoft Teams / Teams Phone pages and alternatives blog: RingEX/Direct Routing supplement or replacement wins on advanced ACD/IVR/routing, omnichannel CX, 500+ integrations, consolidated licensing, lower TCO, higher reliability (99.999% vs 99.99%) vs basic telephony requiring extra licenses/add-ons.

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Microsoft PowerPoint
| Attribute | Microsoft Teams Phone | RingEX | |
|---|---|---|---|
| Provider | |||
| Founded | 1975 | 1999 | |
| Sells To | Enterprises, Small Business | Enterprise, Small Business | |
| Pricing Model | SaaS, Transactional | Recurring, SaaS | |
| Ownership | Public | Public |
Provider 
Founded 1975
Sells To Enterprises, Small Business
Pricing Model SaaS, Transactional
Ownership Public
Provider 
Founded 1999
Sells To Enterprise, Small Business
Pricing Model Recurring, SaaS
Ownership Public

Native integration bringing enterprise telephony and contact center capabilities into Microsoft Teams.



Native integration bringing enterprise telephony and contact center capabilities into Microsoft Teams.
CloudTalk Business Phone System is a cloud calling platform for sales and support teams.
CloudTalk Business Phone System is a cloud calling platform for sales and support teams.

Zoom Phone is a cloud-based business phone system with voice, voicemail, and SMS capabilities.
8x8 cloud business communications and contact center platform (UCaaS/CCaaS).



Cloud SIP trunking service providing global voice connectivity with direct carrier routing.

All-in-one business communications platform unifying voice, video, messaging, and SMS with AI note-taking.


Enterprise SIP trunking service providing high-quality voice connectivity over IP networks.


Elastic SIP trunking service providing global voice connectivity with programmable call routing.

Communication platform as a service providing programmable voice, SMS, and video APIs for developers.


Voice AI agent platform for building, scaling, and iterating AI-powered phone agents on carrier-grade infrastructure.


Vonage Unified Communications delivers cloud-based voice, video, and messaging for business teams worldwide.
Zoom Phone is a cloud-based business phone system with voice, voicemail, and SMS capabilities.
8x8 cloud business communications and contact center platform (UCaaS/CCaaS).
Cloud-based unified communications as a service providing enterprise voice, video, and messaging.
Cloud SIP trunking service providing global voice connectivity with direct carrier routing.

Programmable voice APIs for making, receiving, and managing phone calls globally.

All-in-one business communications platform unifying voice, video, messaging, and SMS with AI note-taking.

Enterprise SIP trunking service providing high-quality voice connectivity over IP networks.

Elastic SIP trunking service providing global voice connectivity with programmable call routing.

Communication platform as a service providing programmable voice, SMS, and video APIs for developers.
Voice AI agent platform for building, scaling, and iterating AI-powered phone agents on carrier-grade infrastructure.

Vonage Unified Communications delivers cloud-based voice, video, and messaging for business teams worldwide.
