This is the 6908th most frequent German word.
festnetz
"Festnetz" means "landline network" in English.
Here, 'Festnetz' refers to the concept of a landline as a common means of telecommunication typically associated with residential use.
Das Festnetz ist in vielen Haushalten eine wichtige Kommunikationsform.
The landline is an important form of communication in many households.
In this usage, 'Festnetzanschluss' describes a physical landline connection or subscription held by a user.
Er hat nur eine Mobilnummer, kein Festnetzanschluss.
He only has a mobile number, no landline connection.
This case utilizes 'Festnetz' to denote landline telecommunication services as part of a broader category including mobile services.