Best UCaaS Platforms - Page 18

How Many UCaaS Platforms Products Does G2 Track?

Total Products under this Category: 326

Category Stats (Oct 2026)

  • Average Rating: 4.36/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: LoopUp (+0.89%) - Among all products in this category, LoopUp recorded the largest rating increase compared to last month

Last updated: October 26, 2026

How Does G2 Rank UCaaS Platforms Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 99,000+ Authentic Reviews
  • 326+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for UCaaS Platforms

G2 Grid® for UCaaS Platforms plotting products by satisfaction and market presence

Highlighted products: Zoom Workplace, Webex Suite, Nextiva, RingEX, Webex Calling, 8x8 Work, Dialpad Connect, and GoTo Connect.

Underlying data: [Grid® JSON](https://www.g2.com/categories/ucaas-platforms/grids.json?focus%5B%5D=zoom-workplace&focus%5B%5D=cisco-webex-suite&focus%5B%5D=nextiva&focus%5B%5D=ringex&focus%5B%5D=webex-calling&focus%5B%5D=8x8-work&focus%5B%5D=dialpad-connect&focus%5B%5D=goto-connect)

RedCloud

RedCloud is a single, unified SaaS communications system built for remote work, fast response, and on-the-go with voice, video, team chat, SMS and 50+ features. No contracts and priced for small businesses.

Who Is the Company Behind RedCloud?

REDCOM Sigma

REDCOM Sigma® is a commercial-off-the-shelf (COTS) Command & Control software ecosystem with voice, video, chat, and conferencing. Sigma can be deployed in the Cloud or on the hypervisor of your choice. Built to support DoD network modernization strategies, REDCOM Sigma increases the warfighter’s operational flexibility while reducing size, weight, and power (SWaP) requirements at the tactical edge. REDCOM Sigma is based on open standards with a focus on interoperability, flexibility, and ease of use, and is listed on the DoDIN Approved Products List (APL).

Who Is the Company Behind REDCOM Sigma?

  • Seller: REDCOM
  • Year Founded: 1978
  • HQ Location: Victor, US
  • LinkedIn® Page: www.linkedin.com
    158 employees on LinkedIn®

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ReflectR

Who Is the Company Behind ReflectR?

  • Seller: Avotus
  • Year Founded: 1981
  • HQ Location: Mississauga, Ontario, Canada
  • Twitter: @AvotusCorp
    472 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    87 employees on LinkedIn®

RingCentral Engage Voice

Who Is the Company Behind RingCentral Engage Voice?

  • Seller: RingCentral
  • Year Founded: 1999
  • HQ Location: Belmont, CA
  • Twitter: @RingCentral
    61,963 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    6,675 employees on LinkedIn®
  • Ownership: NYSE:RNG

RingCX

RINGCX PRODUCT DESCRIPTION RingCX is an AI-first Contact Center as a Service (CCaaS) solution that delivers effortless customer experiences before, during, and after every interaction. Recognized with Metrigy's 2026 MetriStar Top Provider Award for CCaaS, RingCX enables businesses to manage human and AI agents, maximize team performance, and improve customer satisfaction from a single omnichannel platform. AGENTIC VOICE AI AND OMNICHANNEL SUPPORT Agentic Voice AI serves as the core of RingCX, delivering automation, real-time assistance, and insights across every interaction. The platform provides comprehensive omnichannel capabilities, supporting voice calls and over 20 digital channels natively. For total operational simplicity, all 20+ digital channels are included under a single license, letting businesses meet customers where they are without complex tier pricing or hidden channel add-on costs. AI-POWERED SELF-SERVICE AND AVA ASSISTANCE RingCX streamlines operations and drives down wait times with purpose-built AI support. The platform utilizes autonomous AI agents, including AI Receptionist (AIR) and AI Representative (AIR Pro), as well as an open ecosystem for IVAs like Cognigy and Omilia, to provide always-on 24/7 self service. For live interactions, the platform deploys AVA Agent Assist and AVA Supervisor Assist to deliver in-the-moment coaching, dynamic compliance guidelines, and instant conversation visibility, ensuring teams resolve complex inquiries efficiently. NATIVE WORKFORCE ENGAGEMENT MANAGEMENT WITH RINGWEM To continuously optimize customer service teams, the platform features RingWEM, a native AI-powered Workforce Engagement Management suite. This integrated toolkit encompasses automated quality management, advanced interaction analytics, and workforce management. By evaluating customer conversations across channels, RingWEM provides actionable operational insights into agent performance, customer sentiment, and operational efficiency. RAPID DEPLOYMENT AND NATIVE CRM INTEGRATIONS Built for rapid implementation, businesses can fully deploy a new RingCX contact center in just a few days. The solution provides industry-leading 99.999% availability to keep remote and hybrid agents reliably connected from anywhere. Competitively priced for mid-market deployments and easy to manage, RingCX integrates natively with the RingEX unified communications platform and major enterprise CRMs to offer an effortless single-pane-of-glass workspace. WHY CHOOSE RINGCX Modern support and sales organizations choose RingCX to eliminate the friction of fragmented legacy systems. By uniting Agentic Voice AI, autonomous tools like AIR, real-time guidance from AVA Agent Assist and AVA Supervisor Assist, built-in workforce optimization via RingWEM, and an all-inclusive omnichannel footprint into one simple deployment, RingCX delivers modern customer service infrastructure that is highly intelligent and exceptionally reliable.

Average Rating: 4.4/5.0

Total Reviews: 123

How Do G2 Users Rate RingCX?

  • Has the product been a good partner in doing business?: 8.4/10 (Category avg: 8.9/10)

Who Is the Company Behind RingCX?

  • Seller: RingCentral
  • Company Website:
  • Year Founded: 1999
  • HQ Location: Belmont, CA
  • Twitter: @RingCentral
    61,963 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    6,675 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Insurance
  • Company Size: 50% Small, 38% Medium

What Do G2 Reviewers Say About RingCX?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of RingCX, finding it accessible and effective for daily operations.
  • Users admire the versatile features of RingCX, appreciating its ease of access and consistent improvements.
  • Users value the excellent customer support from RingCX, making it easy to implement and utilize effectively.
  • Users find the easy setup of RingCX fantastic, enjoying a seamless experience from the start.
  • Users praise the easy implementation of RingCX, highlighting its quick deployment and user-friendly interface.
Cons
  • Users face the issue of using personal phones for work calls, which complicates their work-life balance.
  • Users express concern over having to use their personal phone for work-related calls, affecting their privacy and convenience.
  • Users find limited features of RingCX restrict flexibility, especially for advanced call flows and analytics needs.
  • Users express concerns over missing features, particularly in customization and advanced reporting compared to legacy systems.
  • Users experience slow customer support response times, leading to frustration when resolving urgent communication issues.

What Are Recent G2 Reviews of RingCX?

RingDesk

RingDesk is an AI answering service for local service businesses — HVAC, plumbing, roofing, legal, medical, and trades. Starts at $199/month flat with no per-minute fees. Your AI receptionist captures leads, books appointments on your calendar, and routes urgent calls in real time. Month-to-month, keep your existing number, go live in ~5 minutes.

Who Is the Company Behind RingDesk?

Sabio CX Platform

The customer is the center for any company that wants to be relevant in the market. Listening, understanding, learning and offering unique and consistent multichannel Customer Experiences is a challenge that DatapointEurope responds to via efficiency and profitability.

Who Is the Company Behind Sabio CX Platform?

Samespace

Build on cutting-edge Internet technologies and design thinking principles, Samespace elates customer experience, increases agent productivity and saves a ton of money. We seamlessly integrate into any CRM to make your contact center agile and adaptable and to make your sales and support teams more productive with automation and streamlined workflows. The solution includes Dialer, IVR, webchat and on-net calls, and AI-powered analytics in one package.

Average Rating: 5.0/5.0

Total Reviews: 3

Who Is the Company Behind Samespace?

  • Seller: Samespace
  • Year Founded: 2018
  • HQ Location: Palo Alto, US
  • Twitter: @samespace
    520 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    71 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Medium, 33% Small

What Do G2 Reviewers Say About Samespace?

AI-generated summary from verified user reviews

Pros
  • Users value the AI efficiency of Samespace, benefiting from real-time monitoring and enhanced task performance.
  • Users appreciate the real-time monitoring and analytics features of Samespace, enhancing task performance and efficiency.
  • Users value the effective communication features of Samespace, enhancing interactions and boosting overall efficiency.
  • Users value the seamless CRM integration of Samespace, enhancing their workflow management and efficiency.
  • Users value the customization options in Samespace, enhancing their workflow and optimizing task management effectively.
Cons
  • Users often experience connection issues with Samespace, causing frustration despite otherwise positive feedback.
  • Users experience limited AI capabilities, resulting in occasional headaches and connection issues impacting overall satisfaction.
  • Users experience integration issues that lead to frustrations and hinder seamless functionality in Samespace.
  • Users find the language limitations in Samespace cumbersome, leading to occasional frustrations with customization options.
  • Users find the limited customization options frustrating, leading to occasional headaches during use.

What Are Recent G2 Reviews of Samespace?

Sarv Cloud Telephony

Just four steps to finish a promising call center without any hassle

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Sarv Cloud Telephony?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind Sarv Cloud Telephony?

  • Seller: sarv.com
  • Year Founded: 2011
  • HQ Location: Jaipur, IN
  • Twitter: @SarvOfficial
    4,190 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    309 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Sarv Cloud Telephony?

What Are G2 Users Discussing About Sarv Cloud Telephony?

SIPcity

SIPcity is the only Australian business VoIP provider delivering it’s cloud PBX with all features and functionality included free as part of the service. We’re dedicated to offering high-value business features. Specifically, this includes: call recording. conferencing. auto-attendant. simultaneous ring/one number. vFax, (known as virtual fax, faxmail or fax to email). voicemail to name a few, without the additional of per user license costs.

Average Rating: 4.5/5.0

Total Reviews: 2

Who Is the Company Behind SIPcity?

  • Seller: SIPcity
  • Year Founded: 2010
  • HQ Location: Sydney, AU
  • LinkedIn® Page: www.linkedin.com
    11 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Small, 50% Medium

What Do G2 Reviewers Say About SIPcity?

AI-generated summary from verified user reviews

Pros
  • Users value the affordability of SIPcity, appreciating inclusive pricing for essential services without extra fees.
  • Users value the all-inclusive pricing for call recording and other features, simplifying phone system planning.
  • Users appreciate the all-inclusive pricing of SIPcity, simplifying budgeting for services like call recording and conferencing.
Cons
  • Users report experiencing frequent call drops with SIPcity, negatively impacting their communication quality.
  • Users report fluctuating call quality with SIPcity, experiencing issues like delays, choppiness, and call drops.

What Are Recent G2 Reviews of SIPcity?

Siperb

Siperb is a modern softphone powered by WebRTC, paired with a hosted WebRTC-to-SIP proxy that connects it to your existing PBX. Rather than replacing your phone system, Siperb bridges it: if your Asterisk or FreeSWITCH PBX isn't WebRTC-ready, Siperb's proxy handles the protocol translation, NAT traversal, and media negotiation so your team can make and receive calls from a browser, mobile app, or desktop client - no hardware, no forced migration. The softphone client runs on Web, Windows, macOS, Linux, Android, and iOS, with call recording (audio & video), blind and attended call transfer, 3-way conferencing, and end-to-end encrypted media. On the proxy side, Siperb supports inbound and outbound SIP registration, register-less connections, mobile and web push notifications, and DTLS-to-RTP media transcoding for PBXs that don't natively support WebRTC's encrypted media format. A free Personal tier covers the hosted proxy and softphone clients for individuals and small setups. Business (£2/domain user/month) adds message and call recording storage/sync, custom integrations, and multi-user domain management. Business Pro (£5/domain user/month) adds extended storage, call transcoding, and upcoming AI agent features. Core client and proxy code is open source (AGPL-3.0) on GitHub for teams who want to self-host.

Who Is the Company Behind Siperb?

  • Seller: Siperb
  • Year Founded: 2024
  • HQ Location: London, GB
  • LinkedIn® Page: www.linkedin.com
    4 employees on LinkedIn®
Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated October 3, 2024