Setting up the voice connection

Configure the voice connection in the VoIP->Settings->SIP provider->New menu.

Enter a Description for the connection, e.g. Private .
Under Authentication ID and under Login Name enter the telephone number including the dialling code, such as 09119876543 .
Enter the Password that you received from your provider.
Under Registrar enter the dialling code of the connection and the ending too, e.g. 0911.sip.arcor.de .
You can enter a STUN server here, such as stun.arcor.com .
Click OK to confirm your entries.

This means that the settings required for a Vodafone VDSL connection are complete. All other settings remain the same as with another provider.