I found this outlet (or is it even an outlet?) In a hotel room I stayed last night. Anyone having an idea for what this is/was used?

 

Telephone jack.

 

https://en.wikipedia.org/wiki/Swedish_telephone_plugs_&_sockets

 

Telephone jack with a hidden video camera in the center.

 

Since it has TELE written on it I am going with a Telephone jack and it would likely help if you listed a country where the picture was taken.

Ron