4.5 million calls blocked per month

 Free of charge

 More than 500,000 happy customers

An end to unsolicited advertising calls

Callfilter automatically blocks unwanted advertising calls. Callfilter is free of charge and can be activated for fixed and mobile lines.


Both residential and business customers can use Callfilter. For fixed networks, Callfilter is activated in the Customer Center; for mobiles, you can activate it in the Mobile Cockpit.


More information about call barring and help with the call filter function

This is how the call filter works