you should reset the indoor chime ,press left button ,when blue light is flashing ,it is reset succesfully.
and press it again . when blue light is on ,press call button of the outdoor camera ,press many times till the chime is ringing
Best regards
Jason
Manager
Guanzhou RealTop Technology Electronic Co.,Ltd
Tel: 0086 23311214
Mobile &Whatsapp & Wechat: 0086 137 6082 4282
Email: Jason@RealTopMall.com
Website:www.realtopmall.com