1975 – 1990 Touch tone era Click on the pictures to learn more…… BTMC U77 BEOCOM 1000 Betacom Phoenix SL30 DFG Modell Lyon Ericsson Diavox Twintoon 10N FeTAp 751 FeTAp 791 GNT F78 KFeap 385 ISKRA ETA 80 Krono Duo LX Mytel fake ISKRA PTT Ericofoon (Ericofon) PTT Kopenhagen F78 PTT type Bazel PTT Florence PTT type Groningen PTT Helsinki PTT type Hilversum PTT type Memofoon PTT type Utrecht Unifoon PTT type Wenen aka Genie Schrack FeApp 80 SEK 76E Comét
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