• The Zadarma Project is the market leader in IP telephony, offering optimum features: unlimited calling, per second billing, and virtual numbers. Our extensive experience and sound technological base guarantee the highest quality.

New function: authorization by IP

Specially for big clients, who have their own VoIP server, Zadarma Project offers convenient service - authorization by IP (SIP-trunk). This function ... all news

> 500,000

registered users from 40 countries


24/7 support available in any convenient way

Up to 90%

save on telephony deployment in office and at home

Over 9 years

of continuous service improvement

5 minutes

time for any service configuration


phone numbers in 100 biggest cities of the world are available for quick setup

Zadarma Project - advanced solutions for telecommunication

sign up now