https://devzone.nordicsemi.com/f/nordic-q-a/10628/ancs-compatibilityhi as we know,ANCS need to pair,we have app for ios,iphone will pair with our devcie when i connect my device by my app,so iphone will connect my device when user open bluetooth,my app can not connect my device at this time.the second case,iphone bluetoothen-USTelligent Community 13Fri, 04 Dec 2015 12:46:04 GMThttps://devzone.nordicsemi.com/thread/39649?ContentTypeID=1Fri, 04 Dec 2015 12:46:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33c8974b-ecf8-4d3b-b592-12e62e3c8c4fAnders Strand<p>Hi.</p> <p>If i understood you correctly, the iOS will automatically connect to your device after bonding. You then have trouble connecting with your custom app. Can you confirm that this is correct?</p> <p>When the iOS has connected to your device, it is no longer advertising. If your app is scanning for the device, it will not find it. It should exist a way for your app to search through already connected devices as well as advertising devices. I am no iOS programmer, but i know this feature exist in the Android SDK. It should be possible on IOS as well.</p> <p>-Anders</p><div style="clear:both;"></div>