Sony IT-B1 PDF manual

Sony IT-B1 is a corded stream phone with lighted keypad. The dial signal is 10 PPS (pulse) selectable tone. The dimensions are approximately 69 x 74.5 x 225 mm (w/h/d), the weight is approximately 485 g. The PDF manual is a service manual that contains installation instructions, disassembly and schematic diagrams with electrical parts list. This is the Canadian model and Central & South America model.