Aircall vs. JustCall (vs. ZoomInfo): How Do They Compare in 2026?

Choosing between Aircall and JustCall for your business phone system often comes down to five questions:

• Do you need a polished, integration-rich phone system for established teams, or an affordable platform that bundles more features at lower price points?

• Is call quality non-negotiable, or can you tolerate occasional hiccups in exchange for cost savings?

• Do you need AI coaching during live calls, or is post-call analysis sufficient?

• Are you primarily running inbound support, outbound sales, or both?

• How important is knowing who to call before you ever pick up the phone?

In short, here's what we recommend:

Aircall is the choice for mid-market teams that value a clean interface, strong CRM integrations, and reliable call quality. Founded in 2014 and serving 22,000+ companies, Aircall has built a mature cloud phone system with 200+ integrations, AI-powered call summaries and coaching through AI Assist Pro, and an AI Voice Agent for 24/7 inbound coverage. The trade-off is price: plans start at $30/user/month with a 3-user minimum, and many features require paid add-ons that push costs higher.

JustCall appeals to budget-conscious sales and support teams that want more features per dollar. At $29/user/month with unlimited minutes (outbound and inbound) on the base plan, JustCall includes a sales dialer, SMS workflows, AI transcription, and 100+ integrations. The platform has handled one billion conversations and counting. However, users consistently report call quality issues and mobile app bugs that weaken the value proposition.

Both platforms solve the same core problem: getting your team on the phone with customers. Neither solves the problem that comes before the call: knowing which prospects to prioritize, what signals indicate buying readiness, and how to build the right contact list. That's where ZoomInfo fits in.

ZoomInfo is a B2B data and GTM platform built on a large data foundation: 500M contacts, 100M companies, 135M+ verified phone numbers, and 200M+ verified business emails. Its GTM Context Graph processes 1.5B+ data points daily, combining this data with your CRM records, conversation transcripts, and behavioral signals to show which accounts are in-market and which contacts to prioritize. Reps can act on that intelligence through the GTM Workspace for sellers, build plays in GTM Studio for marketers and RevOps, or pipe it into Aircall or JustCall through the Enterprise API and MCP, so your team dials verified numbers instead of gatekeepers and dead lines.

If you want your sales team calling the right people at the right time, see how ZoomInfo works.

Aircall vs. JustCall at a glance

Pricing reveals different strategies

Aircall and JustCall look nearly identical on base pricing. The real differences emerge when you dig into what's included.

Aircall's $30/user/month Essentials plan includes one phone number, unlimited domestic calling, basic IVR, and call recording.

But AI transcription and call summaries cost an extra $9/user/month. Live coaching through AI Assist Pro adds $49/user/month. Power Dialer requires upgrading to the Professional plan at $50/user/month. Analytics+ costs another $15/user/month. A sales team that wants transcription, coaching, and a dialer is looking at $99/user/month before additional phone numbers ($6/number/month) or international call charges.

Source: Aircall

JustCall's $29/user/month Team plan includes unlimited minutes, AI transcription, and 500 SMS segments.

That's a real difference.

AI transcription alone, which Aircall charges $9 extra for, comes standard. To match Aircall's Professional tier, JustCall's Pro plan at $49/user/month adds more SMS segments and additional features. The Sales Dialer with predictive capabilities requires custom pricing on the SalesPro plan.

Source: JustCall

Both platforms charge separately for AI Voice Agents. Aircall offers 50 free minutes per month with additional minutes starting at $0.19/minute in bundles. JustCall provides 50 free trial minutes with pay-as-you-go at $0.99/minute. For teams using AI voice agents at volume, Aircall costs far less per minute.

The hidden cost both platforms share: neither tells you who to call. Your team can have unlimited minutes and the best dialer available, but if they're working from a stale contact list or dialing unverified numbers, most of those minutes go to waste.

That's why teams pair these phone systems with ZoomInfo, where 120M direct dials and buyer intent signals help reps connect with the right people instead of burning through bad numbers.

Source: ZoomInfo

Call quality separates the two more than features do

Both Aircall and JustCall are cloud-based VoIP systems that depend on internet connectivity. User feedback, however, tells different stories about reliability.

Aircall maintains 99.95% uptime and runs on AWS infrastructure with 12 points of presence globally.

Users generally praise the call quality, though some report that quality can degrade with congestion and that international calls sometimes suffer from latency. Aircall includes a Network Diagnostics Dashboard and in-app network testing to help teams identify connection issues before they affect calls.

JustCall also claims 99.95% uptime and hosts on AWS and GCP. But call quality complaints are a persistent theme in reviews. Users report call drops and unreliable connections, particularly during peak hours. Call recordings are often cut off or missing, and reviewers have described the platform as unstable with connectivity issues.

Source: JustCall

For teams where every call matters (closing enterprise deals, handling support escalations, conducting recruitment interviews), Aircall's reliability advantage is worth the price premium. For high-volume outbound teams where a few dropped calls are an acceptable trade-off for cost savings, JustCall can work. But stress-test it before committing.

AI features take different approaches

Both platforms have invested in AI, but their implementations reflect different priorities.

Aircall's AI suite splits into two tiers. AI Assist at $9/user/month provides post-call summaries, key topic recognition, sentiment analysis, talk-to-listen ratios, and automated CRM updates. AI Assist Pro at $49/user/month adds real-time capabilities: live transcription, on-call coaching prompts, playbooks for sales methodologies like SPICED and BANT, and automated call scoring with custom scorecards.

Live coaching is where Aircall pulls ahead, giving reps guidance during the conversation rather than only after it ends. One limitation: AI Assist currently supports only English and French, with German and Spanish coming soon.

Source: Aircall

JustCall's AI Copilot covers more ground but goes less deep.

Unlimited AI transcription is included on all plans, a real cost advantage over Aircall's add-on pricing. The platform includes conversation intelligence, AI coaching, agent assist, automatic call scoring, sentiment analysis, and moment analysis. JustCall's Agent Assist provides real-time guidance through script compliance and live assist modules. The SMS Copilot analyzes message tone across five parameters before sending, a feature Aircall doesn't offer.

JustCall reports that 51% of calls go unanalyzed across call centers, positioning its AI as the fix for that blind spot.

Source: JustCall

For AI Voice Agents, both platforms offer 24/7 autonomous call handling. Aircall's AI Voice Agent supports seven languages and delivered a 23% uplift in service level for one customer. JustCall's AI Voice Agent supports 14 languages and includes an outbound AI voice agent that can call prospects back in under 60 seconds, a capability Aircall hasn't released yet.

But neither platform's AI can tell your reps which accounts are ready to buy.

ZoomInfo's GTM Context Graph processes 1.5B+ data points daily to identify buying signals, map decision-making committees, and surface the accounts where outreach is most likely to convert. Aircall and JustCall optimize how you make calls. ZoomInfo optimizes which calls you make.

Source: ZoomInfo

Sales dialer capabilities favor JustCall

For outbound-heavy teams, the dialer is the feature that drives daily productivity.

Aircall offers a Power Dialer on its Professional plan and above. It sequentially dials through a contact list with automatic number addition from any webpage. It works well, but it's a single dialing mode with no predictive capabilities.

JustCall provides three dialing modes. The Power Dialer handles sequential calls, achieving 80-120 calls per hour per rep. The Dynamic Dialer distributes calls across team members from a shared list. The Predictive Dialer makes multiple simultaneous calls per agent and includes answering machine detection with 75%+ accuracy.

JustCall also includes 10-line parallel dialing, voicemail drops, and multi-channel follow-ups.

JustCall adds Number Health monitoring that tracks spam risk based on daily dials and dialing patterns, along with timezone-based calling to prevent calls outside business hours.

Source: JustCall

For outbound sales teams, JustCall's dialer variety is a clear advantage. The predictive dialer alone can increase daily call volume per rep.

What amplifies any dialer is the quality of the numbers being dialed.

ZoomInfo's database of 120M direct dials with up to 95% accuracy means reps reach decision-makers instead of front desks. Feed ZoomInfo's verified contacts into JustCall's predictive dialer or Aircall's power dialer, and connect rates improve before you touch a single platform setting.

Messaging capabilities are close, with JustCall ahead on SMS

Both platforms support multi-channel messaging, but their depth differs.

Aircall recently added WhatsApp integration that brings WhatsApp messages into the same workspace as calls and SMS. The platform includes SMS/MMS on domestic routes with 250 outbound SMS and 50 MMS per user/month for US and Canada. WhatsApp integration requires an add-on, and bulk WhatsApp messaging is not currently supported.

Source: Aircall

JustCall treats messaging as a core feature rather than an add-on. The Team plan includes 500 SMS segments.

Beyond basic messaging, JustCall offers SMS Workflows for automated drip campaigns, an SMS Bot with three response modes (static, menu-based, and webhook-powered), bulk SMS campaigns supporting up to 5,000 recipients with personalization, and WhatsApp messaging with shared team inboxes. JustCall is an official Meta Tech Provider for WhatsApp Business.

Source: JustCall

For teams running SMS-heavy outreach (appointment reminders, follow-up sequences, review requests), JustCall provides more built-in automation. Aircall's messaging handles conversational use cases well but lacks the campaign automation tools.

Integration ecosystems reflect platform maturity

Aircall leads on integration breadth with 200+ native integrations, including tight connections with Salesforce, HubSpot, Zendesk, Intercom, Pipedrive, and Microsoft Dynamics. The platform earned HubSpot's 2025 Co-selling Partner of the Year award.

Aircall also provides a REST API, webhooks, Insight Cards for displaying contextual data during calls, and an Everywhere SDK for embedding telephony in custom applications.

JustCall offers 100+ native integrations covering the major CRM and helpdesk platforms. Recent additions include listings on the Greenhouse Marketplace and HubSpot App Marketplace. JustCall provides REST APIs covering calls, SMS, AI, and WhatsApp, webhooks with HMAC-SHA256 signing, and a CTI Dialer SDK. The platform recently achieved 75% faster CRM syncs across major platforms.

ZoomInfo integrates with both platforms and your broader GTM stack through 120+ marketplace integrations, the Enterprise API, and MCP. Sellers access enriched data through the GTM Workspace, while marketers and RevOps teams build plays from GTM Studio.

The practical benefit: ZoomInfo pushes verified contacts and intent signals directly into your CRM, which then flows into whichever phone platform you choose. Your reps see enriched contact data, company context, and buying signals before they dial.

Source: ZoomInfo

Support and onboarding differ significantly

Aircall provides 24/5 chat support on Essentials and Professional plans, with phone support and 24/7 coverage reserved for Custom plan customers. The platform includes an AI Chat Assistant, a Help Center, and an Aircall Learning Lab with courses and certifications. Larger teams get dedicated account managers. Some users have reported slow response times and difficulty resolving billing issues.

JustCall advertises 24/7 support and offers hassle-free migration. The Help Center spans 20 collections with hundreds of articles.

But there's a notable gap: no phone access to a real person on standard plans. Users get routed to an AI agent, and some report being disconnected without resolution. Phone support is reserved for the Business plan with enterprise pricing.

Source: JustCall

For teams that need hands-on support during setup and ongoing operations, Aircall's tiered model provides more direct human access. JustCall's self-service approach works for technically comfortable teams but can frustrate those who need live help.

Security and compliance are comparable

Both platforms maintain strong security certifications. Aircall holds SOC 2 Type II, GDPR, CCPA, and CSA CAIQ Level 1 certifications, with infrastructure aligned to ISO 27001 and hosted on AWS. The platform uses TLS 1.2 and AES 256 encryption and implements data sanitization for AI features, stripping personally identifiable information before processing through AI models.

JustCall maintains SOC 2 Type II, ISO 27001:2022, HIPAA, PCI DSS v4.0, GDPR, and CSA STAR Level 1 certifications, hosted on AWS and GCP. JustCall's HIPAA compliance is a differentiator for healthcare organizations, something Aircall doesn't explicitly match in its public documentation.

ZoomInfo holds ISO 27001, ISO 27701, SOC 2 Type II, TRUSTe GDPR and CCPA certifications, all renewed annually. As a registered data broker in California and Vermont, ZoomInfo's compliance infrastructure is built into the data layer, which matters for regulated industries evaluating any tool that handles contact data.

Source: ZoomInfo

Aircall vs. JustCall vs. ZoomInfo: Which should you choose?

These three platforms solve different parts of the same problem: connecting your team with customers and prospects.

Choose Aircall if:

• Call quality and reliability are non-negotiable for your operations

• You want a polished interface with strong CRM integrations

• Real-time AI coaching during live calls matters to your sales process

• You have the budget for add-ons that unlock the full feature set

• Your team is at least three users and primarily mid-market focused

Choose JustCall if:

• You want the most features per dollar on the base plan

• Outbound sales dialing (including predictive) is central to your workflow

• SMS automation and bulk messaging are part of your outreach strategy

• You need HIPAA compliance for healthcare operations

• Your team can tolerate occasional call quality inconsistencies

Add ZoomInfo if:

• Your reps waste time dialing unverified numbers or researching prospects manually

• You need to know which accounts are in-market before you call

• Verified direct dials and business emails would improve your connect rates

• You want account intelligence that tells your team who to contact and why

• You're ready to pair your phone system with the data layer it needs

Explore ZoomInfo's free Lite tier or request a demo.

The strongest sales and support operations don't just optimize how calls are made. They optimize which calls get made. Aircall or JustCall handles execution. ZoomInfo provides the intelligence that makes every call count. Together, they form a system where reps spend less time searching and dialing, and more time in conversations that generate revenue.

Aircall vs. JustCall vs. ZoomInfo FAQ

What is the main difference between Aircall and JustCall?

Aircall is a cloud phone system focused on call quality, CRM integrations (200+), and AI coaching, with plans starting at $30/user/month but requiring paid add-ons for features like transcription and live coaching.

JustCall bundles more features into its base plan at $29/user/month, including unlimited minutes, AI transcription, and SMS segments, plus offers three dialing modes compared to Aircall's single power dialer.

Aircall tends to be more reliable; JustCall tends to be more cost-effective.

How does ZoomInfo fit with Aircall or JustCall?

ZoomInfo is not a phone system. It is a B2B data and GTM platform with 500M contacts, 100M companies, 135M+ verified phone numbers, and 200M+ verified business emails that integrates with both Aircall and JustCall.

ZoomInfo provides verified contact data, company intelligence, and buyer intent signals that feed into your phone system, so your reps dial the right people at the right time instead of working from incomplete or outdated contact lists.

Which platform is cheaper for a small sales team?

JustCall offers the lowest effective cost for small teams. Its $29/user/month plan includes unlimited calling and AI transcription with a 2-user minimum ($58/month total).

Aircall's $30/user/month plan requires a 3-user minimum ($90/month total) and charges $9/user/month extra for AI transcription. A comparable Aircall setup with transcription costs $117/month minimum versus JustCall's $58/month.

Which platform has better call quality?

Aircall has the stronger reputation for call reliability. While both platforms claim 99.95% uptime, JustCall users consistently report call drops, unreliable connections during peak hours, and recordings that cut off early or fail to save.

Aircall users occasionally report issues with international calls or unstable networks, but the complaints are less frequent and less severe.

Which platform is better for outbound sales teams?

JustCall offers more outbound capability out of the box. Its three dialing modes (power, dynamic, and predictive) give teams more flexibility than Aircall's single power dialer. JustCall also includes 10-line parallel dialing, answering machine detection, number health monitoring, and timezone-based calling.

However, Aircall's AI Assist Pro provides better real-time coaching during sales calls, which can improve conversation quality and close rates.

Do Aircall and JustCall both offer AI voice agents?

Yes. Both platforms offer AI voice agents for autonomous call handling. Aircall's AI Voice Agent supports seven languages and offers bundled pricing starting at $0.19/minute. JustCall's AI Voice Agent supports 14 languages and charges $0.99/minute on pay-as-you-go.

JustCall also offers an outbound AI voice agent that can call prospects back in under 60 seconds, a capability Aircall has announced but not yet released.

Which platform has better SMS and messaging capabilities?

JustCall is the stronger messaging platform. It includes 500 SMS segments on the base plan, SMS workflow automation for drip campaigns, an SMS bot with three response modes, bulk SMS campaigns for up to 5,000 recipients, and WhatsApp integration as an official Meta Tech Provider.

Aircall includes basic SMS/MMS and recently added WhatsApp integration, but lacks the campaign automation and bulk messaging tools JustCall provides.

Can I use ZoomInfo with either Aircall or JustCall?

Yes. ZoomInfo integrates with both platforms through its CRM integrations and API.

The typical workflow: ZoomInfo enriches your CRM with verified contacts, direct dials, and company data, then your phone system pulls that data for calling campaigns. ZoomInfo's buyer intent signals can also trigger outreach sequences, so your team reaches out when prospects are actively researching solutions.