Zadarma Review 2026: 
Features, Pricing & User Feedback

Exploring Zadarma? Discover what real users say about call quality, features, and support—plus see how CloudTalk compares.

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Table of contents

What is Zadarma?

What are Zadarma's Key Features?

What Users Say About Zadarma

What is Zadarma?

Zadarma is a London-based VoIP provider established in 2006, offering virtual numbers in 110+ countries. Its primary appeal is low-cost access to International Numbers and a free virtual PBX. With per-second billing and native connectivity for Salesforce, it targets businesses seeking global reach with minimal initial overhead.

Following recent acquisitions, Zadarma has integrated advanced AI Voice Agents and speech analytics into its stack. These updates, alongside expanded public APIs, enable users to build sophisticated Workflow Automation sequences. This 2025 roadmap positions them as a growing player in the European AI-driven telephony market.

Despite its features, Zadarma faces reliability concerns, particularly regarding verification delays and inconsistent Customer Details management. Users frequently report account cancellations and poor support response times. Businesses requiring stable Unlimited Concurrent Calls often find these systemic risks too high for mission-critical operations.

What are Zadarma’s Key Features?

Virtual numbers in 110+ countries — local, mobile, toll-free, national
Free Cloud PBX with visual flow editor, IVR menus (4 on Standard, up to 12 on Corporation), call recording, and voicemail-to-email
AI Voice Agent for inbound automation (100 mins included on Office, 200 mins on Corporation)
Shopify integration with auto-creation of customer records from inbound calls
eSIM data packages for traveling employees — unique differentiator
GDPR-compliant; 24/7 support in 7 languages

What Users Say About Zadarma

Based on 100+ verified reviews from G2, Capterra, and Trustpilot

😊 What Users Love

Free Cloud PBX and free Teamsale CRM are genuinely functional
Per-second billing avoids the per-minute rounding waste of legacy carriers
Microsoft Teams and Slack-native calling work cleanly for distributed teams
Speech analytics surfaces useful coaching insights for established users

“We moved to Zadarma when call volume increased and our previous setup couldn’t handle it. After months of daily use, it feels reliable.”

Pratish J.

Marketing and Advertising

Full Review

😤 What Users Hate

Control panel feels dated — multiple reviewers describe the interface as out of step with modern UX
SMS on mobile numbers requires a 3-month prepayment not disclosed at signup
Integration setup described as fragile — small configuration errors break call sync
UI feels less intuitive and modern compared to newer call center alternatives.
Accounts and phone numbers cancelled without warning — including for long-term customers

“This may be an extraordinary piece of software but I cannot base my business on a piece of software where the support organization cannot communicate and where the installation/integration instructions cannot be reasonably followed…”

William C.

Independent Insurance Broker

Full Review

What Are People Talking about Zadarma on G2?

See what real users are saying about Zadarma’s product on G2 — honest reviews, real experiences, and feedback from teams who have used it.

We handle policy inquiries, claims, and renewals, so call routing makes a big difference for us. This system helps direct callers to the right department quickly, without long wait times. It’s also useful that missed calls are easy to track, so we can follow up and return them promptly."

Alexandar V.Small Business

Insurance Advisor

We only discovered there was a Zoho plan limitation when we went to enable the integration. It was a small surprise during setup and meant we had to make a quick adjustment on our side to move forward.You can not remove licences once you add them; you have to contact support for them."

Varun K.Small Business

Account Manager

The support is very bad as the person who answers you always has the same name and says that he can't do anything to help you."

Anne-Marie C.Small Business

Company Name

Présidente-fondatrice

Founded2006

Team Size32-200+ Employees

Coverage110+ Countries

G2 Rating4.5/5

Starting PriceStandard $0/month/5 Users

CloudTalk – #1 Zadarma Alternative

2025 Winter Leader

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See why 5,500+ businesses switched to CloudTalk for superior call quality and AI-powered features.

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Top-rated on G2

Consistently rated highly on G2, CloudTalk helps teams ramp faster, avoid complexity, and rely on a phone system that works as expected from day one.

100+ integrations

Your CRM, helpdesk, and sales tools already talk to each other. CloudTalk just joins the conversation and makes it way more productive.

Coverage in 160+ countries

From next door to across the globe, CloudTalk keeps your calls clear, local, and ready to grow with your business.

Account Stability

Trustpilot documents reviews with patterns of accounts and numbers cancelled mid-operation, triggered by passport-level verification taking 7–20+ days.

Predictable, transparent activation and account management. No documented pattern of accounts suspended without notice or numbers cancelled mid-campaign.

Support Quality

Reviewers describe 48-hour response times and copy-paste replies on critical issues.

Responsive, personalized support consistently praised across G2 and Capterra. Named CSMs on paid tiers without a premium support add-on.

Contact Center Depth

Virtual PBX architecture. No power dialer, smart dialer, parallel dialer, or ACD with queue management for outbound or inbound at scale.

Purpose-built contact-center platform with Power, Smart, AI, and Parallel Dialers, ACD, skills-based routing, and real-time supervisor dashboards.

AI Capacity

AI Voice Agent capped at 100–200 minutes/month and Speech Analytics capped at 400–1,000 minutes/month. High-volume teams hit the ceiling fast.

AI Conversation Intelligence — transcription, summaries, sentiment, topic detection — applied to 100% of calls without minute-based caps.

Account Stability

Zadarma: Trustpilot documents reviews with patterns of accounts and numbers cancelled mid-operation, triggered by passport-level verification taking 7–20+ days.

CloudTalk: Predictable, transparent activation and account management. No documented pattern of accounts suspended without notice or numbers cancelled mid-campaign.

Support Quality

Zadarma: Reviewers describe 48-hour response times and copy-paste replies on critical issues.

CloudTalk: Responsive, personalized support consistently praised across G2 and Capterra. Named CSMs on paid tiers without a premium support add-on.

Contact Center Depth

Zadarma: Virtual PBX architecture. No power dialer, smart dialer, parallel dialer, or ACD with queue management for outbound or inbound at scale.

CloudTalk: Purpose-built contact-center platform with Power, Smart, AI, and Parallel Dialers, ACD, skills-based routing, and real-time supervisor dashboards.

AI Capacity

Zadarma: AI Voice Agent capped at 100–200 minutes/month and Speech Analytics capped at 400–1,000 minutes/month. High-volume teams hit the ceiling fast.

CloudTalk: AI Conversation Intelligence — transcription, summaries, sentiment, topic detection — applied to 100% of calls without minute-based caps.

Predictable management

Unlike Zadarma’s multi-week verification delays and sudden account cancellations cited in reviews, CloudTalk offers transparent and reliable Number Porting and account maintenance. We ensure your business-critical lines stay live without the risk of abrupt mid-operation shutdowns.

Reliable, human-centered support

With one of the lowest support scores in the category, Zadarma users often face long response gaps. CloudTalk is consistently praised for personalized service and Agent Status visibility, ensuring you have a real human partner—including named CSMs on paid tiers—when time-sensitive issues arise.

Advanced Contact Center power

Zadarma acts as a basic PBX, whereas CloudTalk is a full Contact Center platform. We offer a Power Dialer and Smart Dialer for high-volume outreach, along with real-time Wallboard views that monitor agent activity at scale.

AI intelligence without capacity caps

Zadarma’s AI tools are often limited by monthly minute caps. CloudTalk’s AI Smart Notes and Automatic Call Summary Tags apply to 100% of your calls, pushing full transcripts and sentiment directly into your CRM without per-minute throttling.

Intuitive admin experience

Zadarma’s control panel is often described as dated and complex. CloudTalk’s modern UI and browser-based Call Flow Designer make Call Routing changes simple for non-technical owners, eliminating the daily friction found in legacy systems.

Transparent, no-surprise pricing

Zadarma’s headline rates often hide buried conditions like mandatory prepayments or call duration limits. CloudTalk’s Pricing is clear and upfront, documenting every feature you receive so you can scale predictably without discovering hidden costs in the fine print.

Businesses That Switched to CloudTalk

Real results from real companies that made the move—and never looked back.

Zadarma requires identity-document verification that can take up to 20 days, often leading to rejected documents and long support gaps. If your business depends on keeping lines active, you can minimize risk by using a provider with reliable Call Recording and transparent verification protocols that don’t result in sudden, mid-operation account suspensions.

The plan is free for the platform itself, but it limits you to 4 concurrent outgoing calls and has been reported to cut calls at the 5-minute mark. Businesses that outgrow these constraints typically move to a model supporting Call Queuing and professional-grade infrastructure to handle high-volume traffic without undocumented call limits.

As a virtual PBX, Zadarma lacks the contact center layer needed for serious outbound throughput. It does not offer a Parallel Dialer or advanced supervisor tools, making it better suited for basic routing than for teams that need to automate list pacing and manage complex campaigns.

While Zadarma offers a respectable list of native connections, users often report that configuration errors can easily break the sync. Opting for a native HubSpot integration ensures real-time, bi-directional data flow with documented field mappings, allowing non-technical admins to manage the connection without external consultants.

Zadarma maintains GDPR compliance through its European offices and data centers. For teams in more strictly regulated fields, looking for an even higher Security standard—including SOC 2 Type II and HIPAA-aligned Business Associate Agreements—ensures your voice data meets the same rigorous requirements as your internal CRM and medical records.

The most frequent triggers for switching include verification incidents that take inbound lines offline and the need for a Preview Dialer to improve lead follow-up. When a team outgrows the PBX feature ceiling or requires better support response times for live issues, they transition to a more agile, contact-center-first platform.