When you start the intercom, you can press the buttons. If intercom breaks, restart, clicking Green Flag. INTERSCRATCH N-20 firmware 117. Apartments: 999 Updates: Added codes: 1234 K1K4633 К2K1210 K3K1402 K4K4953 K5K1786 K6K5593 K7K5273 K8K1594 K9K2554 K10K6361 K11K6553 K12K2874 K13K5913 K14K2490 K15K2170 K16K5721 K17K4090 K18K7897 K19K8089 K20K4410 Fixed bugs edited symbol 7
