Mobile operators and internet providers in some countries block their clients' access to VoIP via SIP.
In this case, it is still possible to connect to our service via alternative ports.
To use our services on Zadarma Android app:
- Go to «Menu» in the Android app
- Log into your Zadarma personal account
- Click «Menu» again
- select «Advanced» settings
- Select «Use TCP» and enter: sip.zadarma.com: 5065