There are two types of phones at Piszkéstető: Conventional phones, and VOIP phones. Inside the observatory, these phones can be called using the listed numbers.
|RCC control room:||13|
|Schmidt control room:||18|
|50 cm control room:||15|
|RCC control room:||155|
|Schmidt control room:||156|
|50 cm control room:||157|
All institutional extensions at Konkoly Observatory, Svábhegy can be called via the VOIP network, free of charge. Just type the two digit number. For these numbers, see the following document: 
Currently the 3 digit emergency numbers such as Fire, Police and Ambulance can not be called from VOIP (CISCO) network phones!
You have to provide your four digit password. Currently the password of registered users is the same as the enter code to the library at Svábhegy.
Inside the Konkoly network, you can access the following page for more information:
Telephone, phone, telefon