The large rectangular wall at the foot of the Liberation Hill in Haifa was the shell of a telephone exchange established and operated by the British Mandate government before the establishment of the state.
The Haganah people are eavesdropping.
Did you know that from this switchboard, the Haganah members who worked there eavesdropped on the conversations of the city's Arabs with neighboring Arab countries and passed information to the Haganah's intelligence service? And one of the city's residents criticized me for noting this fact on the sign in front of the wall.
The headquarters building was a major target in the Battle of Haifa on this day 77 years ago.

For years, the place has been a conservation site by the Council for the Preservation of Heritage Sites in Israel and the Haifa Municipality.
To Rami Aharoni, hello. To Eitaner "The telephone exchange: From the direction of the Haifa Municipality Building (Hassan Shukri Street) go down towards the lower city along Hassan Shukri Street and continue downhill - Ma'ale HaShihruor Street. After about 200 meters on the left - you will see the building that looks abandoned. On the front wall, near the stairs that go up - you will see the blue sign of the Council for the Preservation of Sites
Hello, please send location
What was was, what's happening with the building today? It stands empty and there will be another white elephant.
There is no need for large buildings for telephone exchanges…
Due to miniaturization, there are no more mechanical relays, the switching is done by transistors
Of course I knew one of my many years was senior to Klalit.