1. Go to User groups (Virtual PBX) -> Users and add a new one:
2. Set name = virt001
3. Go to Authentication tab:
4. Set login = virt001.
5. Press "Generate" near password field to generate password for web-access.
6. Save.
Press "+" near Technologies -> SIP:
Press Generate near secret field to generate password for SIP.
Save.
Go to Users (virt001) -> Refills.
Add refill on 10 USD: