Unified Communications
Provider 
Founded 2001
Sells To Enterprise
Pricing Model —
Ownership —

Vonage Unified Communications delivers cloud-based voice, video, and messaging for business teams worldwide.
Vonage Unified Communications as a Service unifies global business communications channels into a single cloud platform. It enables voice, video conferencing, voicemail transcription, and desktop sharing across devices and locations.
Built for office and remote work, the platform integrates with CRM and business applications. It provides the flexibility required to create meaningful employee and customer engagements from anywhere.
RingCentral

Customer Engagement Bundle
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Microsoft

Microsoft — Teams
microsoft.com
Dialpad

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Zoom

Video Conferencing, Zoom Phone
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Salesforce

Video Conferencing
salesforce.com
| Attribute | Unified Communications | Customer Engagement Bundle | Microsoft — Teams | Unified Communications Platform | Video Conferencing, Zoom Phone | Video Conferencing | |
|---|---|---|---|---|---|---|---|
| Provider | |||||||
| Founded | 2001 | 1999 | 1975 | 2011 | 2011 | 1999 | |
| Sells To | Enterprise | Enterprise, Small Business | Enterprises, Small Business | Enterprise | Enterprise, Small Business | Enterprise, Small Business | |
| Pricing Model | — | Recurring, SaaS | SaaS, Transactional | Recurring, Software, Usage-based | Recurring, Software, Usage-based | Recurring | |
| Ownership | — | Public | Public | Equity, Venture Capital | Public | Public |
Provider 
Founded 2001
Sells To Enterprise
Pricing Model —
Ownership —
Provider 
Founded 1999
Sells To Enterprise, Small Business
Pricing Model Recurring, SaaS
Ownership Public
Provider 
Founded 1975
Sells To Enterprises, Small Business
Pricing Model SaaS, Transactional
Ownership Public
Provider 
Founded 2011
Sells To Enterprise
Pricing Model Recurring, Software, Usage-based
Ownership Equity, Venture Capital
Provider 
Founded 2011
Sells To Enterprise, Small Business
Pricing Model Recurring, Software, Usage-based
Ownership Public