The big advantage of a landline is the constant availability. If a phone is in its charging cradle, you won't have any problems with the battery level. With newer phone models, the sound quality of the call is superior to some smartphones. In addition, you can get many offers for cheap flat rates, with which you can make calls to all networks. And if you buy a cordless phone instead of a corded phone you have the flexibility of a mobile phone, combined with the advantages of a landline phone.

Many providers make it very easy for you to connect your phone to a router. In the phone's menu, you will find the item "Log in" in the settings. If you click on this point, you simply follow the further instructions of the phone. Alternatively, you can register your handset via the router's user interface.

Voice over IP means that the telephone no longer runs via the old telephone network, but via the Internet. VoIP phones therefore establish their connection via the Internet, but you can still use them to reach connections from the telephone network. However, if the Internet connection fails in your house, you can no longer use the phone.

In workplaces, it's best to use a conference phone that enables you to make conference calls with more than one person simultaneously.