VoIP & Phone
7 Best Affordable VoIP Phone Systems for Small Teams (2026)
7 tools compared
Top Picks
<p>Here's the dirty secret of the VoIP industry: <strong>most small teams are paying for phone systems designed for 500-person call centers.</strong> The enterprise features look impressive on a comparison chart, but a 6-person marketing agency doesn't need workforce management tools, omnichannel routing across five channels, or AI-powered quality scorecards. What they need is reliable calling, a mobile app that actually works, and a monthly bill that doesn't require a spreadsheet to understand.</p><p>The VoIP market has exploded in recent years — there are now over 100 providers competing for small business customers. That's great for pricing (costs have dropped 30-40% since 2020), but terrible for decision-making. Every provider claims to be "built for small business" while quietly requiring 3-user minimums, locking call recording behind premium tiers, or charging per-minute for international calls that eat into your budget. <strong>The real cost of a VoIP system isn't the advertised per-user price — it's the total bill after add-ons, overages, and features you didn't realize were extra.</strong></p><p>We evaluated these seven VoIP systems on the criteria that matter most to teams under 20 people: <strong>true per-user cost</strong> (including the features you'll actually need), <strong>setup time</strong> (can one person get it running in an afternoon?), <strong>mobile experience</strong> (because small team members wear multiple hats and aren't always at a desk), <strong>call quality and reliability</strong>, and <strong>integration depth</strong> (does it connect to the CRM or helpdesk you already use?). We deliberately excluded enterprise-focused platforms where the small business plan feels like an afterthought.</p><p>Browse all options in our <a href="/categories/voip-phone">VoIP & Phone</a> directory. If you're specifically looking for sales-focused calling, see our guide to the <a href="/best/best-cloud-phone-systems-remote-sales-teams">best cloud phone systems for remote sales teams</a>.</p><p>One common mistake that costs small teams real money: <strong>buying for the company you want to be instead of the company you are.</strong> A 5-person team that signs up for RingCentral's full suite because "we'll grow into it" is paying for 80% of features they won't touch for two years. Start with what you need today, and pick a provider that makes upgrading painless — not one that front-loads enterprise features into your first bill.</p>
Full Comparison
AI-powered cloud phone for sales and support teams
💰 From $19/user/mo (annual). Lite, Essential, Expert, and Custom plans.
<p><a href="/tools/cloudtalk">CloudTalk</a> hits the sweet spot that most small teams are looking for: <strong>genuine call center features at a price point that doesn't assume you have a call center budget.</strong> The Lite plan at $19/user/month includes features that competitors like Aircall and RingCentral lock behind $30-50 tiers — call recording, IVR menus, a visual call flow designer, and automatic call distribution. For a 5-person team, that's $95/month for a phone system that sounds and functions like a much larger operation.</p><p>What makes CloudTalk particularly valuable for growing small teams is the <strong>zero user minimum.</strong> A 2-person startup pays the same $19/user rate as a 15-person team — no "minimum 3 users" gotcha that forces solopreneurs to pay for phantom seats. The visual Call Flow Designer lets anyone (not just IT) set up professional call routing in minutes: route sales calls to one team, support calls to another, and after-hours calls to voicemail with custom greetings. The international coverage is also exceptional — phone numbers available in 160+ countries, which matters if you serve clients outside the US.</p><p>The AI features become available on the Essential plan ($29/user/month), adding sentiment analysis, call transcription, and smart queuing. For teams that need CRM integration with HubSpot, Salesforce, or Pipedrive, the Essential tier is the practical starting point. The Expert plan at $49/user/month adds live call monitoring and wallboards for managers — useful once your team hits 8-10 people and you need visibility into call activity. CloudTalk's upgrade path is clean: each tier adds meaningful capabilities without making you re-learn the system.</p>
Power Dialer & Smart DialerCall Monitoring160+ International NumbersCRM IntegrationsAI Conversation IntelligenceCall Flow DesignerReal-Time Analytics DashboardWorkflow Automation
Pros
- No user minimum — solo operators and 2-person teams pay the same per-user rate as larger teams
- Call recording, IVR, and call flow designer included on the $19/month Lite plan where competitors charge $30-50
- Visual Call Flow Designer lets non-technical users set up professional call routing in minutes
- Phone numbers in 160+ countries for teams serving international clients
- Clean upgrade path from Lite to Expert without platform migration or data loss
Cons
- AI features like transcription and sentiment analysis require the $29/month Essential plan
- Smaller integration ecosystem (80+) compared to RingCentral's 300+ or Aircall's 100+
- No built-in video conferencing — you'll still need Zoom or Google Meet for video calls
Our Verdict: Best overall value for small teams — the only VoIP system that includes call recording, IVR, and a call flow designer at $19/user/month with no user minimum.
Affordable VoIP business phone system with 100+ features for small teams
💰 Essentials from $19.95/user/month, Pro from $24.95/user/month, Pro Plus from $29.95/user/month
<p><a href="/tools/ooma">Ooma Office</a> is the VoIP equivalent of a Honda Civic: <strong>reliable, affordable, does exactly what it's supposed to do, and doesn't try to upsell you on features you'll never use.</strong> At $19.95/user/month for the Essentials plan, you get unlimited calling to the US, Canada, Mexico, and Puerto Rico, a virtual receptionist (auto-attendant), ring groups, a mobile app, and virtual fax — with no contract and no user minimums. For small businesses that just need a professional phone system without the bells and whistles, Ooma is the simplest path from "using personal cell phones" to "sounding like a real company."</p><p>The <strong>15-minute setup</strong> is genuine, not marketing. You pick your number (or port an existing one), download the app, and start making calls. The virtual receptionist is surprisingly capable for the price — multi-level menus, business-hours and after-hours routing, custom greetings, and extension dialing. For a 3-person consulting firm or a local service business, this single feature transforms the caller experience from "hoping someone picks up" to a professional phone tree that routes calls correctly.</p><p>The trade-offs are real but predictable: <strong>Ooma is a phone system, not a communications platform.</strong> There's no real-time transcription, no AI features, limited CRM integrations (Salesforce only on the top tier), and the analytics are basic. SMS and call recording require the Pro plan ($24.95), and Salesforce integration requires Pro Plus ($29.95). If your team's needs start and end with "make and receive business calls professionally," Ooma is the most cost-effective option on this list. If you need AI, deep CRM integration, or international calling, look at CloudTalk or Dialpad instead.</p>
Virtual ReceptionistRing GroupsMobile AppVideo ConferencingCall RecordingCall QueuingCRM IntegrationsVirtual Fax
Pros
- $19.95/user/month with unlimited US/Canada/Mexico calling, no contracts, and no user minimums
- 15-minute setup that genuinely requires zero technical expertise
- 24/7 live support on every plan — even the cheapest tier gets human help
- Virtual receptionist with multi-level menus and business-hours routing on the base plan
- 50+ phone features including ring groups, virtual fax, and call transfer included from day one
Cons
- SMS, call recording, and video conferencing locked behind the $24.95 Pro plan
- Very limited integrations — Salesforce only on Pro Plus ($29.95), no HubSpot or Pipedrive
- No AI features, no real-time transcription, and basic analytics only
- Best suited for teams under 20 — scalability becomes a limitation as you grow
Our Verdict: Best budget option for simplicity — the most affordable way to give a small team professional business calling with zero setup complexity.
AI-first cloud communications for modern business
💰 From $15/user/mo (Connect). Dialpad Sell from $60/user/mo.
<p><a href="/tools/dialpad">Dialpad</a> is what happens when an AI company builds a phone system instead of the other way around. <strong>Every Dialpad plan — including the $25/month Standard tier — includes real-time call transcription, AI-generated call summaries, and automated action item extraction.</strong> For small teams that spend significant time on the phone (sales calls, client consultations, support conversations), this changes the workflow fundamentally. Instead of scribbling notes during a call and typing them into your CRM afterward, Dialpad transcribes the conversation live, summarizes it when you hang up, and logs the key points automatically.</p><p>The AI isn't a gimmick add-on — it's woven into the daily experience. <strong>The live transcription runs during every call</strong>, making it searchable later ("What did the client say about the March deadline?"). AI-powered CSAT scoring analyzes every customer interaction without requiring post-call surveys, giving managers visibility into service quality that would otherwise require dedicated QA staff. For a 5-10 person team without a dedicated quality assurance manager, this is genuinely transformative — you get enterprise-level interaction analytics without enterprise-level headcount.</p><p>Dialpad also bundles voice, video, messaging, and SMS into a single app — <strong>no separate subscriptions for video conferencing or team chat.</strong> The Standard plan at $25/user/month includes unlimited calling, SMS/MMS, video meetings, team messaging, and all AI features. The Pro plan at $35/user/month adds CRM integrations (Salesforce, HubSpot), international SMS, and multiple phone numbers per user. For small teams that need both a phone system and a team collaboration tool, Dialpad can replace two subscriptions with one.</p>
Dialpad AI Voice IntelligenceReal-Time CoachingDialpad SellUnified CommunicationsCRM Auto-LoggingCustom Moments
Pros
- AI transcription, call summaries, and action items included on every plan — no $9-15/month add-on like competitors
- Unified app combines calling, video, messaging, and SMS so you don't need separate tools
- AI CSAT scoring analyzes every interaction automatically — no survey fatigue for customers
- $25/month Standard plan is competitive while including more AI than competitors' $50 plans
- Clean, modern interface that works identically on desktop and mobile with real-time sync
Cons
- CRM integrations (Salesforce, HubSpot) require the $35/month Pro plan
- No user minimum on Standard, but Pro requires 3+ users for pricing
- Contact center features jump to $80/user/month — a steep gap from the $35 Pro plan
- Smaller integration marketplace compared to RingCentral's 300+ apps
Our Verdict: Best AI value for small teams — the only provider that includes real-time transcription and AI call summaries on its base $25/month plan without add-on fees.
Enterprise-grade cloud communications with 300+ integrations
💰 From $20/user/mo (annual). Core, Advanced, and Ultra plans.
<p><a href="/tools/ringcentral">RingCentral</a> is the 800-pound gorilla of business VoIP, and its small business plans are more affordable than most people assume. <strong>The Core plan at $20/user/month includes unlimited domestic calling, SMS, video meetings for up to 100 participants, team messaging, and IVR</strong> — making it the cheapest option on this list for teams that also need video conferencing. With 300+ integrations (more than any competitor), RingCentral connects to virtually any tool your team already uses: Salesforce, HubSpot, Microsoft Teams, Google Workspace, Slack, Shopify, and hundreds more.</p><p>For small teams, the real argument for RingCentral is <strong>future-proofing.</strong> A 5-person team starts on the $20 Core plan. As they grow to 15 people, they upgrade to Advanced ($25) for auto call recording and CRM integrations. At 50 people, they can add RingCX ($65/agent) for a full contact center — all without migrating platforms, re-training staff, or losing historical data. No other provider on this list offers this seamless a growth path from 2 users to 2,000. The 99.999% uptime SLA (roughly 5 minutes of downtime per year) is also unmatched — RingCentral simply doesn't go down.</p><p>The trade-off for small teams: <strong>RingCentral can feel over-built.</strong> The admin portal has hundreds of settings that a 5-person team will never touch. Setup takes longer than Ooma or CloudTalk because there are more configuration options. And while the $20 starting price is competitive, the features most small teams want — call recording, CRM integration, advanced analytics — require the $25 Advanced plan. Still, for teams that know they'll grow and want to avoid a painful platform migration in 18 months, RingCentral's total cost of ownership is hard to beat.</p>
99.999% Uptime SLA300+ IntegrationsAI Transcription & SummariesCall Monitoring SuiteRingCX Contact CenterAdvanced AnalyticsGlobal ReachTeam Messaging & Video
Pros
- $20/user/month Core plan includes video conferencing for 100 people — can replace Zoom subscription
- 300+ integrations, the largest marketplace of any VoIP provider — connects to virtually any business tool
- 99.999% uptime SLA means roughly 5 minutes of downtime per year
- Seamless growth path from 2 users to 2,000+ without platform migration
- AI meeting summaries and live transcription now included on all business plans
Cons
- Call recording and CRM integrations require the $25/month Advanced plan, not included on Core
- Admin portal can feel overwhelming for small teams with hundreds of configuration options
- Setup takes longer than simpler providers — expect 1-2 hours vs. 15 minutes for Ooma
- Enterprise-grade feature density means you're paying for capabilities you may not use for years
Our Verdict: Best for teams that plan to grow — the $20/month starting price is competitive today, and the seamless upgrade path to full contact center means you'll never outgrow it.
Unified customer experience management platform with AI-powered communications
💰 Core from $25/user/month, Power Suite from $75/user/month
<p><a href="/tools/nextiva">Nextiva</a> stands out in the VoIP market for a feature that no other provider on this list matches: <strong>a built-in CRM.</strong> While competitors charge you for a phone system and then expect you to buy a separate CRM subscription (HubSpot at $50/month, Salesforce at $25/user/month), Nextiva includes contact management, interaction history, customer profiles, and notes directly in the platform. For small teams that don't have a CRM yet — or are tired of paying for one they barely use — this eliminates an entire software subscription.</p><p>The Core plan at $25/user/month covers voice, video, messaging, and SMS with a centralized conversation view that threads all interactions with each contact. <strong>You can see a customer's call history, messages, and notes in one place before picking up the phone</strong> — context that normally requires toggling between a CRM and phone app. The Engage plan at $35/user/month adds speech analytics, automation, intelligent routing, and multi-site management. The Power Suite at $75/user/month unlocks the full contact center with skills-based routing and AI transcription.</p><p>Nextiva's reliability is worth noting: <strong>99.999% uptime backed by enterprise-grade infrastructure</strong> and 24/7 support across all plans. The company has been in the VoIP space since 2006, which means battle-tested infrastructure and a mature product. The trade-off is that Nextiva's interface, while functional, feels less modern than Dialpad or CloudTalk. And the jump from Engage ($35) to Power Suite ($75) is steep — teams that need contact center features may find better value in CloudTalk's Expert plan at $49/user/month. But for the specific use case of "phone system plus basic CRM in one bill," Nextiva is the only option.</p>
Omnichannel SupportAI Transcription & AnalyticsIntelligent RoutingBuilt-in CRMWorkforce EngagementDynamic Agent ScriptingSelf-Service ToolsAdvanced CX Analytics
Pros
- Built-in CRM with contact management and interaction history eliminates a separate CRM subscription
- Centralized conversation view threads calls, messages, and notes per contact in one timeline
- 99.999% uptime SLA with enterprise-grade infrastructure and 24/7 support on all plans
- Smooth scaling from basic phone ($25) to full enterprise contact center without switching platforms
- 20+ years in the VoIP market means mature, reliable infrastructure with proven stability
Cons
- $25/month Core plan lacks advanced routing and analytics — most useful features start at $35 Engage tier
- Interface feels less modern than Dialpad or CloudTalk despite recent updates
- Power Suite at $75/user/month is a steep jump from Engage for contact center features
- AI transcription and advanced analytics only on the highest tiers
Our Verdict: Best for teams that need phone + CRM in one platform — the built-in contact management eliminates a separate CRM subscription and keeps customer context at your fingertips.
AI-driven cloud telephony for modern business
💰 From $12/user/mo (annual). Essential, Standard, and Enterprise plans available.
<p><a href="/tools/krispcall">KrispCall</a> targets a specific gap in the VoIP market: <strong>teams that need a professional phone system at the absolute lowest possible price.</strong> The Essential plan at $15/user/month is the cheapest option on this list, and it includes virtual phone numbers from 100+ countries, call recording, voicemail, shared numbers, and basic IVR. For micro-businesses (freelancers with a VA, 2-3 person agencies, early-stage startups) where every dollar matters, KrispCall provides the core phone capabilities without the price tag of established players.</p><p>The <strong>Unified Callbox</strong> is KrispCall's standout feature for small teams — a central inbox that aggregates all calls, voicemails, and messages across every number and user into one view. Instead of checking individual voicemail boxes or asking "did anyone call while I was out?", the entire team sees the communication queue. Combined with shared phone numbers (multiple team members can answer calls to one number), this creates a simple but effective team phone workflow without the complexity of formal call center software.</p><p>The limitations match the price point. <strong>The Essential plan caps at 5 users</strong> — you must upgrade to Standard ($40/user/month) for unlimited users, and that's where KrispCall loses its price advantage. CRM integrations, call transcription, and the power dialer are all Standard-tier features. The integration ecosystem is smaller than Aircall or RingCentral, and advanced analytics are limited across all plans. KrispCall is best viewed as an entry-level phone system for very small teams: if you're under 5 people and need professional calling for under $100/month total, it's the most cost-effective option available. Once you outgrow 5 users, re-evaluate whether CloudTalk or Ooma offers better per-user value.</p>
Virtual Phone NumbersAI-Powered Call ManagementUnified CommunicationsCall Recording & MonitoringPower DialerCRM IntegrationsAdvanced Call Analytics99.99% Uptime Guarantee
Pros
- Cheapest entry point at $15/user/month — a 5-person team pays just $75/month total
- Virtual numbers in 100+ countries for establishing local business presence internationally
- Unified Callbox gives teams a shared view of all calls, voicemails, and messages
- ISO 27001 certified with GDPR and PCI DSS compliance for security-conscious teams
- Real-time call coaching (listen, whisper, barge) available on Standard plan for training
Cons
- Essential plan limited to 5 users — Standard at $40/user/month removes the cap but eliminates the price advantage
- CRM integrations, call transcription, and power dialer all require the $40 Standard tier
- Smaller integration ecosystem compared to every other provider on this list
- Limited analytics and reporting capabilities even on higher tiers
Our Verdict: Best for micro-teams on a tight budget — the $15/user/month Essential plan is the cheapest way to get professional VoIP for teams of 5 or fewer.
Cloud phone system built for fast-growing sales teams
💰 From $30/user/mo (annual). 3-user minimum. AI add-on $9/license/mo.
<p><a href="/tools/aircall">Aircall</a> is built for one specific workflow: <strong>sales and support teams that live inside their CRM.</strong> The 100+ native integrations aren't just API connections — they're deeply embedded workflows. Make a call from inside HubSpot with one click, and Aircall automatically logs the call, attaches the recording, creates a timeline entry, and triggers follow-up automation. For sales teams running high-volume outbound campaigns, the power dialer on the Professional plan ($50/user/month) auto-dials through contact lists while the rep focuses on conversations instead of manual dialing.</p><p>The shared call inbox is Aircall's team collaboration superpower. <strong>Missed calls, voicemails, and callback requests appear in a shared queue</strong> that any team member can claim, assign, or follow up on. Warm transfers pass caller context (notes, CRM data, conversation history) to the receiving rep before they pick up — eliminating the "can you repeat your issue?" experience that frustrates callers. For support teams, this means zero dropped balls. For sales teams, it means hot leads never sit in someone's personal voicemail.</p><p>The reason Aircall ranks last for small teams specifically is cost and minimums. <strong>The 3-user minimum means your floor is $90/month</strong> (Essentials) or $150/month (Professional, which includes the power dialer and Salesforce integration). The AI add-on for call summaries and sentiment analysis is an additional $9/license/month. For a 3-person team, Aircall's effective cost of $30-59/user/month makes it significantly more expensive than CloudTalk ($19), Ooma ($19.95), or Dialpad ($25) — all of which offer comparable core calling features. Aircall's value proposition is strongest for teams of 5-15 where the CRM integration depth and sales-specific workflows justify the premium.</p>
Power DialerClick-to-DialLive Call Monitoring100+ IntegrationsWarm TransferAI Call Summaries
Pros
- Deepest CRM integration of any VoIP provider — automatic call logging, recording, and follow-up automation in HubSpot and Salesforce
- Shared call inbox ensures missed calls and voicemails are visible to the whole team, not trapped in individual mailboxes
- Warm transfer passes full caller context to the next rep before they pick up
- 100+ native integrations with business tools beyond just CRM — Slack, Intercom, Shopify, Zendesk
- Power dialer on Professional plan maximizes outbound call volume for sales campaigns
Cons
- 3-user minimum means the floor is $90/month — expensive for 1-2 person teams
- Power dialer and Salesforce integration require the $50/user/month Professional plan
- AI call summaries cost an additional $9/license/month on top of the base plan
- No free or significantly cheaper entry tier for testing before committing
Our Verdict: Best for CRM-centric sales teams of 5+ — the integration depth is unmatched, but the 3-user minimum and higher per-seat cost make it less ideal for very small teams.
Our Conclusion
<h3>Quick Decision Guide</h3><ul><li><strong>Best overall value for growing teams</strong> → <a href="/tools/cloudtalk">CloudTalk</a>. Starts at $19/user/month with no user minimums, includes call recording and IVR on the base plan, and scales cleanly to 50+ users.</li><li><strong>Cheapest reliable option</strong> → <a href="/tools/ooma">Ooma</a>. $19.95/user/month with unlimited US/Canada/Mexico calling, virtual receptionist, and 24/7 support — no contracts, no minimums.</li><li><strong>Best AI features on a budget</strong> → <a href="/tools/dialpad">Dialpad</a>. Real-time transcription and AI call summaries included on the $25/month Standard plan — no add-on fees.</li><li><strong>Need 300+ integrations and enterprise reliability</strong> → <a href="/tools/ringcentral">RingCentral</a>. The $20/user/month Core plan is surprisingly affordable for what you get, but the real value is knowing you'll never outgrow it.</li><li><strong>Want a built-in CRM</strong> → <a href="/tools/nextiva">Nextiva</a>. Skip the CRM subscription entirely — Nextiva includes contact management, interaction history, and customer profiles.</li><li><strong>Tightest possible budget ($15/user)</strong> → <a href="/tools/krispcall">KrispCall</a>. The Essential plan at $15/user/month covers virtual numbers, call recording, and basic IVR for up to 5 users.</li><li><strong>Sales teams that need a power dialer</strong> → <a href="/tools/aircall">Aircall</a>. The CRM integrations and power dialer workflow are unmatched, but the 3-user minimum and $30 starting price mean it's best for teams of 3+.</li></ul><h3>Our Top Pick</h3><p>For most small teams, <strong>CloudTalk offers the best balance of price, features, and scalability.</strong> The $19/user/month Lite plan includes features (call recording, IVR, call flow designer) that competitors lock behind $30-50 tiers. There's no user minimum, so a 2-person startup pays the same per-user rate as a 20-person team. And when you do grow, the upgrade path to Essential ($29) and Expert ($49) adds CRM integrations, analytics, and monitoring without forcing a platform migration.</p><p>If your priority is the absolute lowest cost with maximum simplicity, <strong>Ooma is hard to beat.</strong> It's the closest thing to a "plug in and go" VoIP system — 15-minute setup, unlimited domestic calling, and a virtual receptionist that makes a 3-person business sound professional. The trade-off is fewer integrations and limited scalability past 20 users, but for small teams that just need a phone system that works, Ooma delivers exactly that.</p><p>One trend worth watching: <strong>AI features are rapidly becoming standard rather than premium.</strong> In 2024, real-time transcription was a $9-15/month add-on everywhere. In 2026, Dialpad and CloudTalk include it in mid-tier plans, and RingCentral bundles AI meeting summaries into every business plan. If you're choosing a provider today, factor in whether AI features are included or will cost extra — the gap between providers is significant and growing. For more communication tools, browse our <a href="/categories/call-center">Call Center</a> directory and our <a href="/best/ringcentral-alternatives-small-business-phone">RingCentral alternatives</a> guide.</p>
Frequently Asked Questions
How much does a VoIP phone system cost for a small team?
Most small team VoIP systems cost between $15-50 per user per month. Budget options like KrispCall start at $15/user/month and Ooma at $19.95/user/month. Mid-range options like CloudTalk ($19-49/user/month) and Dialpad ($25-35/user/month) include more features. Watch for hidden costs: some providers charge extra for call recording, SMS, international calls, or additional phone numbers. A 5-person team should expect to spend $100-250/month total for a solid VoIP setup.
Do I need special hardware for a VoIP phone system?
No. All seven providers on this list work through desktop apps, mobile apps, and web browsers — no special hardware required. Your team can make and receive business calls from their existing laptops and smartphones. If you prefer physical desk phones, most providers support popular IP phones from Poly, Yealink, and Cisco, but they're entirely optional. The only hardware requirement is a stable internet connection with at least 100 Kbps upload/download per concurrent call.
Can I keep my existing business phone number when switching to VoIP?
Yes. All major VoIP providers support number porting — transferring your existing business phone number to the new system. The process typically takes 1-3 weeks depending on your current carrier. Most providers handle the porting process for you at no extra charge. During the transition, you can set up call forwarding from your old number to avoid missing calls. Some providers like RingCentral and Nextiva also offer temporary numbers to use while the port completes.
What internet speed do I need for VoIP?
Each simultaneous VoIP call requires about 100 Kbps of upload and download bandwidth. For a 5-person team where 3 people might be on calls at once, you'd need at least 300 Kbps dedicated to VoIP — well within what most business internet plans provide. The bigger concern is network stability, not speed. Jitter (packet timing variation) and packet loss cause choppy audio and dropped calls. If your team experiences call quality issues, enabling Quality of Service (QoS) on your router to prioritize VoIP traffic usually fixes it.
What happens to VoIP during a power or internet outage?
Unlike traditional landlines, VoIP requires both internet and power to function. However, most providers offer built-in failover options. Call forwarding can automatically redirect calls to mobile phones during outages. Nextiva, RingCentral, and Dialpad all have mobile apps that work over cellular data as a backup. Some teams keep a basic cell phone plan as emergency backup. For critical operations, consider a UPS (uninterruptible power supply) for your router and a secondary internet connection via mobile hotspot.