housephone
nounUK /ˈhaʊs.fəʊn/
US /ˈhaʊs.foʊn/
A phone that stays in your home and is not carried around.
Please call me on the housephone when you get home.
OTHER MEANINGS
2. A telephone provided by a hotel or building for guests or residents to use.
The hotel lobby has a housephone for local calls.
3. A phone shared by everyone in a household rather than belonging to one person.
We only had one housephone growing up, so we had to take turns.
4. A phone installed in a fixed location within an office or institution.
Use the housephone on the reception desk to reach the manager.