Open Zoiper 5, go to Settings > About > Activate , and paste your key into the field. Troubleshooting Activation Issues
The only secure and legal way to obtain a Zoiper 5 PRO activation key is by purchasing a license directly from the official Zoiper shop. zoiper 5 pro activation key
: Provide the username and password sent to your email after purchasing from the Zoiper webshop Select Activation Method "Activate online" to sync with the licensing server. ⚙️ Licensing and Usage Rules Open Zoiper 5, go to Settings > About