BT Coin Telephone No. 23 Payphone 100

Introduced as the CT23 Coin Telephone, the Payphone 100 Mark I/II was a compact, indoor-focused payphone with LED credit display, keypad star/hash variants, and modern handset styling. Lightweight plastic construction limited security, suiting supervised locations, wall mounting, shelf fixing, or rear-chain installation.

NameCT23 Payphone 100
Date1982
ManufacturerLandis & Gyr for BT
Usagesupervised indoor use

Development of the CT23 Payphone 100

CT 23 – Coin Telephone No. 23 (“Payphone 100”)
Also known as the Payphone 100 Mark I/II


Features include LED credit display, star/# key variants, and compact plastic body with moderate security—designed for supervised indoor use.

Wall-mounted or chained into place, weighing ~3 kg
The instrument has been styled to harmonise with the New Generation Telephones incorporating a keypad and a new styled handset. Due to the styling the payphone does not have a high degree of security and therefore the installation should be in a well supervised location. It will be possible to screw the CT23B down to a shelf or to chain it by a clasp fixing at the rear of the cash compartment.
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