About us

Zadarma is an international company, providing telecommunication services since 2006. Our professional expertise, sophisticated infrastructure and long-term experience lie at the heart of our premium cloud communication solutions. Today our service embraces a large number of active users in 160 countries, collaboration with the world largest VoIP providers, a worldwide range of virtual phone numbers and 24/7 customer support team.

Zadarma History: over 15 years of success

  • 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 Zadarma
E-commerce Poland Expo Zadarma
Сonference Zadarma

We are attentive to our clients’ needs and it allows us to develop a modern service and stay in the top-20 of cloud telecom providers of the world.

Together we are creating the best communication service for you! Over 2 000 000 clients have entrusted Zadarma with their telecom needs. Sign up now and stay with our service forever.


  • task
    Communication. The basis of our work.
  • Search
    Transparency. We avoid any understatement, small print and stared clauses. Openness and honesty are the main principles of client interactions at Zadarma.
  • Team Zadarma
    Improvement. Constant improvement of our services and products allows us to maintain leading positions in the industry for many years.
  • easy
    Automation. We do not have a sales department, we do not force you into getting unnecessary services. Clients can connect all required services in the personal account in a matter of minutes, and we will assist at any point.
  • communication
    Feedback. We are happy to receive any feedback and do everything for our service to be easy to use for clients with any level of technological background.

Our philosophy

Zadarma philosophy
Effortless telephony
Voice communication is the priority for Zadarma. Unique technologies at the basis of our services allow our end-users to take confident and easy decisions for both business and private communication needs.
For many years now futurologists have been predicting the death of voice communication, however, each year virtual telephony is improving and continuing its development. We are confident, that it is partially thanks to our hard work.
Zadarma philosophy
Modern technologies
Constant improvement of our services is one of the main Zadarma goals. This is our philosophy.
We are always striving to improve, and we are implementing the most modern and advanced technologies in our work. All for you to enjoy our services for your business with ease.
Zadarma philosophy
Client satisfaction and data security
We become happier when we interact with our satisfied clients. Thus, our main goal is to develop convenient and functional services, that will not only benefit your business but bring you positive emotions and actual value to your company.
Zadarma pays close attention to privacy issues. We provide reliable security to all your personal data.

Zadarma Network

We set maximum quality and reliability requirements for our infrastructure:
  • 7 main data centres in 7 countries on three continents (Europe, North America, Asia) and many smaller platforms
  • All main data centres are connected to at least two external channels and Internet Exchange Points (IX)
  • Full backup is used within each data centre (services, servers, power supply, network infrastructure). Backup also takes place between data centres
  • For maximum connection quality, traffic is routed through the nearest data centre
IP Telecom Bulgaria LTD
Registration number/VAT: BG201274344
Address: office 211, 16 Vasil Levski Str., 8000 Burgas, Bulgaria
Phone: +359 56 940 510
United Kingdom
Company number: 12149920
Address: 63-66 Hatton Garden, London, United Kingdom, EC1N 8LE
NIF/CIF: B66781501
Address: av/Cortes Valencianas, 58-1003, Valencia, Spain - 46015
Operator registered:
Operator registered:
Operator registered:

Our partners

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In the press

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