Please ensure that your smartphone has access to internet and the Intercom function in KONE Flow Notification settings is enabled, and you have a nameplate in the intercom. You can test your internet connection by connecting to a website with a browser on your smartphone. Please refer to Receive video call from intercom, Activate and manage intercom calls and nameplates and Enable or disable intercom calls. If the issue persists, please contact your administrator.
Some Android smartphones use battery saving methods and other application specific settings that make KONE Flow unresponsive for door opening, video calls, and similar features.
Note: On some smartphones, low battery level can limit receiving intercom calls. The user cannot always adjust smartphone specific battery optimization.
For more information on how to optimize Android settings, refer to Optimize Android settings.
Similarly, some VPN services block video calls. To enable video calls, turn off your VPN connection. Also, some mobile operators are known to block the SIP protocol, which blocks video calls. To enable video calls, contact your operator or service provider to unblock the SIP protocol, switch contract or provider.
Note: Locked iOS devices require additional steps to open the KONE Flow video call. For more information, refer to Open door for visitors during intercom call.