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About us

Zadarma is an international telecommunication provider offering reliable services since 2006. With strong industry expertise, advanced infrastructure, and years of experience, we deliver premium cloud communication solutions for modern businesses. Today, Zadarma serves a global network of users in over 160 countries, partners with the world’s leading VoIP providers, offers a wide selection of virtual phone numbers, and provides 24/7 customer support.

Zadarma History: over 19 years of success

  • 2025
  • We’ve obtained an ISO/IEC 27001 security certificate and opened a new data center in Madrid. The cloud PBX is now integrated with AI platforms, a multichannel user verification API has been launched, and a macOS app has been released. We’ve added new integrations, and the HubSpot app has received official certification.
  • 2024
  • SMS 2.0: New rates, SenderID registration, and integration with Teamsale CRM. The website and support are now available in Portuguese, and the emergency call feature has been expanded to 32 countries. API launch for eSIM.
  • 2023
  • Introduced eSIM with internet coverage in 150+ countries, few SMS capabilities for business. New features added toTeamsale CRM: analytics, autodialer, bulk emailing. Launched an integration with the largest eCommerce platform - Shopify
  • 2022
  • Updated integrations marketplace - now PBX can be integrated with several systems. Zadarma became an MVNO and introduced its own mobile numbers in France. ID verification process has been simplified with the partnership with Jumio, and Zapier integration allowed to connect Zadarma with 5000+ apps
  • 2021
  • PBX 2.0 with extended functionality and improved interface was introduced. We have launched a browser extension for instant calls and integrations with Microsoft Dynamics, Microsoft Teams. Teamsale CRM features were significantly updated and new price plans and numbers were added
  • 2020
  • Speech analytics in 50+ languages was launched, as well as free video conferencing, new price plans - World and Americas, new integrations with HubSpot and Freshdesk, new API for Teamsale CRM and WebRTC
  • 2019
  • Free CRM-system – Teamsale CRM – launched, fully updated app for Android, extended number and price plans coverage, German language added for support, number of users surpassed 1 700 000
  • 2018
  • Complete PBX, widgets, iOS app and main website update. Attractive price plans and free Call Tracking presented. The millionth user registered with the service
  • 2017
  • New data centres launch in New York, fully updated client account design, increased toll-free numbers coverage to 70 countries
  • 2016
  • The Zadarma Cloud PBX integration with top CRM systems, project launch in Poland and Spain, free app release for Windows
  • 2015
  • API interface availability, creation of Zadarma iOS app, unique new service presentation - the SIM card for roaming with price plans and VoIP features
  • 2014
  • New data centre launch, security system modernization, and increased coverage of toll-free numbers and multi-currency price options
  • 2013
  • The new interaction system with clients, improved and expanded Cloud PBX features
  • 2012
  • Free cloud PBX (Business Phone System) launch, virtual phone number availability in 70 countries
  • 2011
  • The service expansion - the CallBack feature, SMS messages, useful website widgets and Zadarma SIP app for Android
  • 2010
  • The launch of an affiliate partner program (which now has more than 1,000 partners across the globe)
  • 2009
  • Improved service interface, creation of the webphone and other useful features
  • 2008
  • Virtual phone number sales in several countries
  • 2007
  • Substantial increase of our customer database, 24/7 customer support launch and call center establishment
  • 2006
  • First launch

Team

We are attentive to our clients’ needs, which allows us to develop a modern, user-focused service and remain among the world’s top 20 cloud telecom providers.

Together, we’re building the best communication service for you! Over 2 000 000 clients have already entrusted Zadarma with their telecom needs. Join us today and experience the difference for yourself.

Team Zadarma

Values

Values
Transparency. We avoid vague wording, small print, and hidden clauses. Transparency and honesty are the core principles of client interaction at Zadarma.
Values
Improvement. Our commitment to constantly improving our services and products has helped us maintain a leading position in the industry for many years.
Values
Automation. We never push unnecessary services. Clients can easily activate everything they need through their personal account in just a few minutes, and we’re here to help at any step.
Values
Communication. The basis of our work.
Values
Feedback. We welcome all feedback and are committed to making our service easy to use for clients of any technical background.

Our philosophy

Effortless telephony

Effortless telephony

Voice communication is at the heart of Zadarma’s services. Our unique technologies allow users to make confident, easy decisions for both business and personal communication.

For years, futurologists have predicted the decline of voice communication, but virtual telephony continues to evolve and grow stronger each year. We believe that’s in no small part thanks to our ongoing innovation and dedication.

Modern technologies

At Zadarma, continuous improvement is one of our core principles. It’s part of who we are.

We’re always looking for ways to improve our services by using the latest and most advanced technologies. Our goal is to make sure you can enjoy reliable and efficient communication for your business.

Modern technologies
Client satisfaction and data security

Client satisfaction and data security

We find true fulfillment when our clients are happy. That’s why our main goal is to develop convenient and functional services that not only benefit your business but also bring you positive experiences and real value.

At Zadarma, we take privacy seriously. We provide reliable security to all your personal data.

Zadarma Network

We set the highest quality and reliability standards for our infrastructure:

ISO/IEC 27001
Zadarma data centres map
  • 6 main data centres in 6 countries on three continents (Europe, North America, Asia) and numerous smaller platforms
  • All main data centres are connected to at least two external channels and Internet Exchange Points (IX)
  • Full backups are performed within each data centre (services, servers, power supply, network infrastructure). Backups are also made between data centres
  • To ensure the best connection quality, traffic is routed through the nearest data centre

Offices

IP Telecom Bulgaria
Europe
IP Telecom Bulgaria LTD
Address:
office 211, 16 Vasil Levski Str., 8000 Burgas, Bulgaria
Phone: +359 56 916 886
Registration number/VAT:
BG201274344
Operator registered:
KRS Arcep Bundesnetzagentur
Smartvoice
United Kingdom
SMARTVOICE LTD
Address:
167-169 Great Portland Street, 5th Floor, London, United Kingdom, W1W 5PF
Company number:
12149920
Operator registered:
Ofcom Communications Ombudsman Comms Council UK logo
Voice cloud
Spain
VOICE CLOUD S.L.
Address:
av/Cortes Valencianas, 58-1003, Valencia, Spain - 46015
NIF/CIF:
B66781501
Operator registered:
CNMC
Contacts for administrative questions: manage@zadarma.com

Our partners

Telia logo Company logo Inteliquent logo Lumen logo Colt logo Telefonica logo Bics logo

In the press

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Zadarma IP telephony meets the requirements of globally active entrepreneurs, because they can organize their company from anywhere in the world and connect all their employees in one network with customers and partners.

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Zadarma understands how integral communication and building relationships are to businesses at every stage.

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Zadarma’s VoIP services help you separate work from personal at an incredible price

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Zadarma's tech team is always looking to evolve their cloud-based business phone software (PBX) to accommodate the ever-changing new normal global communication needs. There are many advantages to Zadarma's VoIP solution.

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European telecom provider Zadarma has successfully integrated three of the leading AI-powered voice assistants into its cloud telephony and virtual PBX platform.

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By choosing Zadarma, you get a variety of flexible tools that help your business stay competitive and connected.

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Zadarma focuses on offering reliable cloud communication services for businesses and individuals around the world.

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Zadarma is a globally recognised PBX vendor, offering a popular cloud PBX phone system. This ready to go, affordable phone system is simple to set up and comes with a variety of call management features, creating a versatile business phone system for growing businesses.

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