Callfilter
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