Colours: beige Quantity: 1 exchange pad push button / 2 extension phones with lcd readout / 49 desk phones push button Periods: 1987 / 1988
American Phones American telephones with extension buttons Americana New Prop Stock Office phone and intercom systems Office Phones and Intercoms Office Telephone System Telephony Commercial
AmericanAmerican phone system with extension switches / buttonsArizonaIntertelIntertel/GX