Secretary office telephone TELZES 1

There was a great need in the developing industry and state administration in post-war Poland for managing internal telephone networks designed to operate in the conditions present different employment establishments (steelworks, mines, railway, administrative buildings). One of the specialisms mentioned above was the production of systems for business managers. The first was the ZAS system of serially connected telephones, designed in the 1970s. The TELZES1 secretary/director’s office telephone presented here was a modernised version of the ZAS. TELZES1 was given a new housing, set of switches, and LEDs instead of lightbulbs. In later units the dial was replaced by a keypad. Depending on the version, it allowed two city lines and three or five telephones to be connected. It was also possible to establish conference calls with all internal subscribers. Manufacturer: Zakłady Teleelektroniczne Telkom-Telos, Kraków 1986 Inv.No.: MIM 635/VIII-23 Model prepared on the basis of photogrammetric measurements