What is the difference between UCaaS and CCaaS?

UCaaS (Unified Communications as a Service): software for employee-to-employee and employee-to-external communication; features: cloud business phone system, video meetings, team chat, presence (showing who is available), voicemail; users: all employees in an organization; pricing: typically $20-45/user/month; used for: internal team communication, external business calls, vendor calls, customer calls not managed by a dedicated contact center. CCaaS (Contact Center as a Service): software for managing customer service interactions at scale; features: intelligent call routing (IVR — Interactive Voice Response — routing callers to the right agent based on menu choices or voice recognition), agent queue management (distributing calls across available agents), omnichannel support (handling phone, email, chat, social media in one agent interface), call recording and quality monitoring, workforce management (agent scheduling and forecasting), CRM integration (screen-pop showing customer information when a call connects), analytics (agent performance, wait times, resolution rates); users: contact center agents and supervisors; pricing: typically $75-150/agent/month; used for: customer service, technical support, sales order-taking, reservation management. The convergence opportunity (8x8's XCaaS thesis): most UCaaS and CCaaS vendors are separate products; an agent at a company might use RingCentral (UCaaS) for internal calls and Genesys (CCaaS) for customer service calls; 8x8's XCaaS combines both in one platform; when a customer calls in through the contact center and needs to be transferred to a billing specialist (a non-contact-center employee), the XCaaS platform can handle this transfer seamlessly because both the contact center agent and the billing specialist are on the same communications fabric.

How is Microsoft Teams impacting the UCaaS market?

Microsoft Teams background: Microsoft Teams is a collaboration platform included in Microsoft 365 (formerly Office 365) Enterprise subscriptions (which most large enterprises already purchase for email and Office applications); Teams provides video meetings, team chat, file sharing, and app integrations; in 2020-2021, Teams phone calling features were added (Teams Phone — formerly Teams Phone System). The threat to UCaaS vendors: many enterprises using Microsoft 365 Enterprise E3 ($36/user/month) or E5 ($57/user/month) already pay for Teams; adding Teams Phone (Microsoft Teams Phone Essentials at $8/user/month or included in E5 with appropriate calling plan) allows businesses to replace their separate UCaaS (RingCentral, 8x8) subscription with Microsoft's integrated offering; from a procurement standpoint: instead of Microsoft 365 ($36) + RingCentral ($30) = $66/month, enterprise can pay Microsoft 365 E5 ($57) which includes Teams Phone. Limitations of Teams Phone: Teams Phone is best for enterprises fully standardized on Microsoft 365; integrations outside the Microsoft ecosystem are less seamless; contact center capabilities (CCaaS) are basic compared to specialized CCaaS vendors; international calling support has gaps in some markets. Who is most vulnerable: smaller UCaaS vendors like 8x8 that compete in the mid-market are most at risk; large enterprise customers with complex needs (contact center, global operations, advanced analytics) continue to value specialist UCaaS vendors. RingCentral's response: RingCentral has a Microsoft Teams integration (RingCentral for Microsoft Teams) that overlays RingCentral's calling on top of the Teams interface; RingCentral is positioning as a Teams-compatible premium calling layer rather than a Teams replacement.

What is a business phone system and how do cloud UCaaS providers make money?

Traditional business phone system economics: PBX hardware — upfront capital purchase ($5,000-$500,000+ depending on size); IT installation and configuration; annual maintenance contract (15-20% of hardware cost per year); desk phones — $150-500 per employee; total upfront cost for a 100-employee company: $50,000-$200,000+; ongoing: maintenance contract + per-call PSTN fees. Cloud UCaaS economics: subscription revenue — monthly fee per user seat (typically $20-45/month per employee for standard business phone + video + messaging); call termination fees — per-minute charges for calls to PSTN (traditional phone network); add-on fees — optional features like call recording ($5/user/month), CRM integrations, advanced analytics; enterprise customers sign multi-year contracts (1-3 years) providing ARR. RingCentral's unit economics: ARR per customer ranges from $240/user/year (basic plan × 12 months) to $500-600/user/year for enterprise plans with premium features; a 500-seat enterprise customer might generate $200,000-300,000 ARR; RingCentral has 400,000+ business customers representing millions of users. Gross margin profile: UCaaS cloud platforms have gross margins of 65-75%; the main cost of revenue is cloud infrastructure (AWS or Azure hosting), customer support, and PSTN call termination costs (paying per-minute to phone carriers to connect business VoIP calls to the traditional phone network); as scale increases, infrastructure and support costs per user decrease, gradually improving gross margins. 8x8 and RingCentral both target 80%+ gross margins long-term as their platforms scale.

brimindinvest.com / compare / rng-vs-eghtLIVE

RNG

RingCentral, Inc. · Technology - Unified Communications as a Service (UCaaS)

$35.02

-17.65% this month

VERSUS

⟷

COMPARE

EGHT

8x8, Inc. · Technology - Unified Communications & Contact Center as a Service

$1.84

-23.65% this month

Scoreboard verdict

Across AI score, momentum, valuation, upside, operating margin

RNG

2

EGHT

2

MIXED SETUP

Comparison scoreboard

MIXED SETUP

AI Score

RNG ✓34.7

EGHT 24.7

1Y Return

RNG ✓+29.13%

EGHT 0.00%

Fwd P/E

RNG 6.51

EGHT ✓5.11

Target Up.

RNG +29.64%

EGHT ✓+34.51%

Op. Margin

RNG N/A

EGHT N/A

Metrics last refreshed: 6/20/2026

Quick take

RNG vs EGHT Stock Comparison: AI Score, Valuation, Performance and Upside

RingCentral and 8x8 are both cloud UCaaS/CCaaS companies competing in the enterprise communications market, with very different scale and market positions — RingCentral is the market leader in cloud business communications with $2B+ ARR and extensive carrier and channel partner distribution, while 8x8 is a smaller UCaaS/CCaaS company differentiated by its integrated XCaaS platform but facing scale disadvantages and a challenging path to profitability.

RNG vs EGHT is market-leading cloud communications platform with extensive distribution (RingCentral's RingEX + RingCX platform with carrier and channel partner relationships, AI features, and enterprise scale protecting share during Microsoft Teams Phone expansion) versus integrated UCaaS+CCaaS platform competing on architectural convergence (8x8's XCaaS unified platform sharing data across employee and customer communications — differentiated architecture but at a significant scale disadvantage versus RingCentral and other UCaaS/CCaaS specialists) — category leader defending versus integrated platform challenger.

Live analysis · updated 6/20/2026

RNG and EGHT are closely matched — they split the tracked metrics evenly. RNG has delivered stronger 1-year price return (+29.13% vs 0.00%), though EGHT trades at the lower forward P/E (5.11x vs 6.51x). Analyst consensus implies meaningfully more upside for EGHT (+34.51%) than for RNG (+29.64%).

Normalized 1Y performance

RNG

EGHT

Recent returns

RNG

EGHT

Analyst price targets & sentiment

RNG · 15 analysts

Price target range

analyst low$30.00
analyst high$55.00
analyst mean$45.40
current price$35.02

+29.6% upside to analyst mean

EGHT · 4 analysts

Price target range

analyst low$1.50
analyst high$3.00
analyst mean$2.48
current price$1.84

+34.5% upside to analyst mean

Who should consider this stock?

RNG may suit investors who:

→Value RingCentral's market leadership in cloud UCaaS as providing scale advantages in R&D investment, partner relationships, and enterprise brand recognition that smaller UCaaS competitors cannot match
→Believe the on-premises PBX to cloud UCaaS migration still has a long runway (60-70% of business phone lines still on-premises) with RingCentral positioned to capture the largest share of this multi-year replacement cycle
→See RingCentral's AI features (RingSense call transcription, summaries, and analytics) as protecting against Teams Phone bundling by providing AI value-add that Teams Phone does not yet match in communication analytics

EGHT may suit investors who:

→Believe 8x8's integrated XCaaS platform (unified UCaaS + CCaaS on a single data and admin layer) is architecturally superior for enterprises wanting to consolidate employee communications and customer service contact center into one platform
→See 8x8's lower valuation relative to RingCentral as providing asymmetric upside if XCaaS integrated platform adoption accelerates and 8x8 demonstrates a credible profitability timeline
→Want UCaaS/CCaaS exposure at a smaller market capitalization with higher optionality — accepting greater risk versus RingCentral in exchange for higher potential upside if 8x8 wins significant enterprise XCaaS consolidation deals

Performance & AI score

Metric	RNG	EGHT
AI score	34.7	24.7
AI rank	#1680	#3017
Latest close	$35.02	$1.84
1M return	-17.65%	-23.65%
6M return	+19.03%	-14.42%
1Y return	+29.13%	0.00%

$10,000 invested — hypothetical growth (dividends reinvested)

How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?

Period	RNG	EGHT
1Y ago	$12.96K (+29.6%) started 2025-06-18	$10K (+0.0%) started 2025-06-18
5Y ago	$1.22K (-87.8%) started 2021-06-18	$701.22 (-93.0%) started 2021-06-18
10Y ago	$17.07K (+70.7%) started 2016-06-20	$1.34K (-86.6%) started 2016-06-20

Hypothetical — past performance does not guarantee future results.

Valuation & upside potential

Metric	RNG	EGHT
Market cap	$2.94B	$259.79M
Trailing P/E	37.26	184.00
Forward P/E	6.51	5.11
Price/Sales	1.15	0.35
EV/Revenue	1.78	0.72
Analyst target	$45.40	$2.48
Target upside	+29.64%	+34.51%

Growth, profitability & risk

Metric	RNG	EGHT
Revenue growth	5.30%	4.60%
Earnings growth	N/A	N/A
EPS growth	N/A	N/A
FCF margin	+25.10%	+9.22%
Operating margin	N/A	N/A
Profit margin	3.31%	0.22%
ROIC proxy	N/A	1.23%
Return on equity	N/A	1.23%
Dividend yield	0.21%	0.00%
Beta	1.13	1.82
Debt/equity	N/A	253.01
Current ratio	1.15	1.09
Quick ratio	0.75	0.81

Drawdown & downside risk

Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.

1Y risk snapshot

RNG max drawdown28.57%

EGHT max drawdown40.66%

RNG max wkly drop16.63%

EGHT max wkly drop21.56%

5Y risk snapshot

RNG max drawdown92.99%

EGHT max drawdown94.41%

RNG max wkly drop30.54%

EGHT max wkly drop36.43%

10Y risk snapshot

RNG max drawdown95.15%

EGHT max drawdown95.86%

RNG max wkly drop33.66%

EGHT max wkly drop36.64%

Performance metrics by period

Period	Metric	RNG	EGHT
1Y	Growth	+29.13%	0.00%
	CAGR	+29.15%	0.00%
	Sharpe ratio	0.63	0.34
	Max drawdown	28.57%	40.66%
	Max daily drop	12.46%	12.32%
	Max wkly drop	16.63%	21.56%
5Y	Growth	-87.84%	-92.99%
	CAGR	-34.39%	-41.23%
	Sharpe ratio	-0.43	-0.40
	Max drawdown	92.99%	94.41%
	Max daily drop	23.42%	25.97%
	Max wkly drop	30.54%	36.43%
10Y	Growth	+70.07%	-86.63%
	CAGR	+5.46%	-18.24%
	Sharpe ratio	0.29	-0.06
	Max drawdown	95.15%	95.86%
	Max daily drop	23.42%	26.40%
	Max wkly drop	33.66%	36.64%

Business comparison

Category	RNG	EGHT
Company	RingCentral, Inc.	8x8, Inc.
Sector	Technology - Unified Communications as a Service (UCaaS)	Technology - Unified Communications & Contact Center as a Service
Industry	N/A	N/A
Core business	RingCentral is the world's leading cloud-based unified communications as a service (UCaaS) platform, providing cloud business phone systems, video meetings, team messaging, and contact center software. RingCentral's platform (RingEX — formerly RingCentral MVP) replaces traditional on-premises PBX phone systems with a cloud subscription; employees access their business phone number on any device (desk phone, computer, mobile phone); RingCentral Video provides video meetings; RingCentral Messaging provides team chat. RingCentral's RingCX is a contact center as a service (CCaaS) product competing in customer service call center markets. Key partnerships include Avaya (co-developing Avaya Cloud Office powered by RingCentral — accessing Avaya's installed enterprise base) and Mitel.	8x8 is a cloud communications company providing unified communications (UCaaS) and contact center (CCaaS) on a single integrated platform (the 8x8 XCaaS — Experience Communications as a Service — platform). 8x8's integrated approach differs from most UCaaS providers who offer UCaaS and CCaaS as separate products — 8x8's platform shares the same data layer, administrative console, and communication fabric for both employee communications (phone, video, chat) and customer service contact center operations. 8x8 targets mid-market and enterprise customers looking to consolidate multiple communications vendors into a single platform.
Investor focus	Investors track RingCentral's annual recurring revenue (ARR) growth, total annualized revenue run rate, gross margin (improving as the platform scales), operating margin trajectory toward GAAP profitability, and large enterprise customer growth (customers with 100+ seats, which carry higher ACVs and retention).	Investors track 8x8's annual recurring revenue (ARR) and service revenue growth, XCaaS integrated platform adoption rates, gross margin, and the company's path to sustainable profitability given significant accumulated losses.

RNG strengths

→RingCentral has the broadest UCaaS market distribution through carrier and channel partner relationships — RingCentral partners with AT&T, Avaya (Avaya Cloud Office), Atos, and hundreds of master agents and value-added resellers; this partner network extends RingCentral's reach to enterprise customers that direct sales would not efficiently reach
→RingCentral's platform scale provides product breadth that smaller UCaaS competitors cannot match — with RingEX (voice, video, messaging), RingCX (contact center), RingCentral for Microsoft Teams integration, and AI (RingSense AI — transcription, summaries, call analytics), RingCentral offers a complete communications suite
→Enterprise migrations from on-premises PBX to cloud UCaaS is a long-term secular trend with significant remaining opportunity — approximately 60-70% of business phone lines are still on on-premises PBX systems; the multi-decade migration to cloud UCaaS provides a large replacement market for RingCentral

EGHT strengths

→8x8's integrated UCaaS + CCaaS XCaaS platform is a genuine architectural differentiator — most competitors offer UCaaS (employee communications) and CCaaS (customer contact center) as separate products that don't share data or administration; 8x8's integrated platform provides a single view of all customer and employee interactions, enabling better customer service analytics
→Mid-market to enterprise focus with globally distributed workforce capabilities — 8x8 has deep expertise in supporting multinational companies needing communications across many countries with local number portability and regulatory compliance
→Contact center integration provides higher ACV (Annual Contract Value) per customer than pure UCaaS — contact center software is more complex and higher-value than basic business phone; 8x8's XCaaS customers typically spend more than customers who only purchase UCaaS from competitors

Risks to watch — RNG

→Microsoft Teams has emerged as an increasingly capable UCaaS alternative for Microsoft-heavy enterprises — Teams Phone (business calling features within Microsoft Teams) is included in many Microsoft 365 Enterprise plans; enterprises already paying for Microsoft 365 can add business phone without an additional RingCentral subscription, reducing TAM
→RingCentral's path to GAAP profitability has been slow — the company invested heavily in sales and marketing to grow ARR; operating cash flow and free cash flow have improved but the timeline to sustained GAAP profitability extends investor patience
→The UCaaS market is commoditizing as basic cloud phone functionality becomes table stakes — differentiating primarily on AI features (call transcription, summaries) and integrations requires continuous innovation investment to stay ahead of Zoom Phone, Microsoft Teams Phone, and newer competitors

Risks to watch — EGHT

→8x8 is significantly smaller than RingCentral and faces scale disadvantages — 8x8's ARR is approximately $650-700M versus RingCentral's $2B+; smaller scale means fewer resources for R&D, sales, and marketing relative to the RingCentral, Genesys, and Five9 competition
→8x8 has not demonstrated a clear path to sustained profitability — 8x8 has been unprofitable for many years; competition-driven investment requirements in the UCaaS and CCaaS markets has made profitability elusive
→Microsoft Teams Phone and Zoom Phone are compressing the UCaaS market opportunity — as Microsoft and Zoom expand phone features within their collaboration platforms (often bundled in existing subscriptions), standalone UCaaS vendors like 8x8 face a pricing and bundling headwind

Frequently asked questions

What UCaaS is: cloud-based business communications platform providing phone, video meetings, and team messaging via software rather than on-premises hardware (PBX phone system). Traditional on-premises PBX: businesses install a PBX (Private Branch Exchange) — a hardware telephone switching system in their office; physical desk phones connect to the PBX; employees get internal extensions and can make/receive external calls through the PBX; adding capacity requires hardware upgrades; managing the system requires on-site IT staff; remote workers need VPN access to reach the phone system. Cloud UCaaS advantages: any device — employees use their business phone number on a desk phone, computer softphone application, or mobile app; location independence — cloud UCaaS works wherever there is internet; this became critical during COVID's forced remote work; no hardware investment — businesses pay a monthly subscription per user (typically $20-45/user/month) rather than buying PBX hardware; auto-scaling — adding users is immediate (add a license, create an account); automatic updates — the UCaaS provider maintains and updates the platform; no IT burden. Additional capabilities: business SMS (sending text messages from business phone numbers), video conferencing integrated with the same platform, team messaging (like Slack but built into the phone system), call recording and transcription, voicemail-to-email, and CRM integration. Why migration is happening: the installed PBX base is aging (many systems are 10-20 years old); the maintenance and expertise to support aging PBX hardware is disappearing; COVID forced rapid cloud communications adoption; remote and hybrid work requirements make cloud UCaaS standard.

AI Prediction SignalNext 5 trading days

Members only

RNG

+2.8%BUY

EGHT

+1.1%HOLD

Start Free Trial Log in

ML model trained on historical prices · 14-day free trial · No credit card required

Free public comparison

Want deeper AI forecasts?

This comparison page is public and free forever. Subscribers can unlock saved watchlists, full AI rankings, detailed forecasts, and interactive analysis tools.

Start Free Trial Read Investing Guides