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Festnetztelefonie: Vorteile

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Fixed network telephony

Lots of fantastic benefits for you

Thanks to advanced technology, our fixed network telephony offers you the best. You not only benefit from excellent sound quality, but also from many fantastic benefits like the free answering machine and easy call and contact management.

HD sound quality

Sounds incredibly close

Thanks to our fixed network telephony our HD-Phones offer crystal clear HD sound quality (high definition). We filter out ambient noise and optimise speech reproduction for enhanced comprehension.


Phoning has never looked so good

Our new fixed network phones not only sound good, they also look too beautiful to be true. They are also highly practical in daily life, for in contrast to traditional fixed network phones, our HD-Phones no longer need a base station, thus eliminating cable clutter.

Go to HD-Phones

Bar calls

No more annoying marketing calls

Simply bar telephone numbers from which you do not wish to receive calls on your HD-Phone or in the Customer Center.

Go to all call management manuals


The free answering machine

From personalised answering messages and smart notification functions to receiving faxes, COMBOX® offers you all you'd expect of a good cloud-based answering machine.

Go to COMBOX® pro

Parallel ringing

More convenience with two lines

The latest fixed network telephony provides you with a second voice channel for free. So you can make calls when someone else is already using the same telephone number.

Go to Parallel ringing