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At Home
Modern call protection for your home! Choose between blacklists for a manual integration into your telephone system or the landline phone with an integrated call protection.
Business
- API-Key Business for Blacklists
- Fritzbox Blacklists for Business
Call protection developed for the office! With the tellows API key you have access to the database with dubious telephone numbers - suitable for your needs (up to 30 connections).
Partner Products
Our partner products include optimal protection for your telephone system. With the API key you get access to the tellows database.
About tellows

tellows

tellows not only offers protection for the landline and office: tellows also has a website for reverse searches for unknown telephone and mobile phone numbers, an app for Android and iOS and a blog that regularly contains interesting information about telephone fraud and current telephone spam

More about tellows

tellows Website

Phone numbers can be searched on the tellows website and unknown calls can be better estimated with the ratings of over 1.8 million phone numbers by the worldwide community.
Go to Website

tellows Apps

The tellows app includes various features like the identification of incoming calls, searching for phone numbers and adding ratings. Numbers can also be blocked with the Pro version.
Android App | iOS App

tellows Blog

The tellows blog not only informs about all relevant news at tellows, but also about legal situations, tips and tricks against telephone advertising and the latest scams and fraud methods.
Visit the Blog

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Business
Fritzbox Blacklists for Business

Fritzbox Blacklists for Business

The tellows scorelists for the Fritzbox - The perfect solution for your company

It is not only at home that we want to experience a secure telephone feeling. In the office, too, it is important to use it in a time sparing and resource-saving manner. So why waste time on advertising calls when you can only put through the really important calls from customers? No problem with the tellows blacklists for small and medium-sized companies.

fritzbox router

For companies using a Fritzbox, the tellows scorelist can easily be integrated into the router. With the blacklists you benefit from caller identification for your landline phone. The easy setup and the automatic updates via CardDAV server offer a relaxed phone call. The call barring enables the blocking of advertising calls and dubious callers.

The largest community on telephone numbers, with over 40,000 records and 1.3 million visitors per month, is what makes the call blocker and spam filter for the telephone so successful! The score lists contain selected, active numbers that have been reported to tellows. Every day, tellows receives hundreds of ratings which are then considered for the scorelist.

It is also possible to block incoming calls. In this case, the call numbers are not put through at all via the call blocking function in the Fritzbox and all callers in the telephone book are blocked directly.

Add to Compare

tellows Fritz!Box Number Blacklist (Commercial Usage) - 1 Year

€0.00

Incl. 19% VAT

About tellows

tellows provides a forum for the rating of telephone numbers and uses the collective knowledge of the community to develop solutions against unwanted calls. tellows is represented in more than 50 countries and pursues the mission to combat telephone spam worldwide.

Visit tellows.co.uk

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tellows UG
Eschenring 6
04828 Bennewitz
Germany