katia! The best phone antispam

Since three years we are successfully fighting criminal calls. If you want to definitively get rid of phone threat, try our solution!

unwanted calls blocked
annoying calls blocked per day
threats blocked each day
eligible users

katia never sleeps

Analyse, learn and decide. katia is our detection algorithm able to detect and block in realtime phone threat.

Rules for detecting threat
New threat detection time

katia for telephony

Simultaneous ringing

Remote call screening

For Sunrise and Swisscom subscribers

29.95.- CHF per year + 30.- CHF activation fee (vat excl.)

Request an activation

katia for VoIP

Remote call screening

Compatible with all SIP provider

 starts at 19.95.- CHF per year (vat excl.)

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