https://devzone.nordicsemi.com/f/nordic-q-a/37317/ancs-encryption-processHi! SDK:nRF5_SDK_15.0.0_a53641a\examples\ble_peripheral\ble_app_ancs_c\pca10056\s140\arm5_no_packs Development board:pca10056,V0.9.1. Because the current process of ancs is to initiate an encryption request after the connection is successful, anden-USTelligent Community 13Thu, 09 Aug 2018 11:28:15 GMThttps://devzone.nordicsemi.com/thread/143547?ContentTypeID=1Thu, 09 Aug 2018 11:28:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5ac485e5-deda-4eb2-8e23-2125bf10c0a5Vidar Berg<p>Hi,</p> <p>The ANCS will send a pairing request if the central does not initiate pairing automatically because the ANCS characteristics cannot be accessed as long as the link is not encrypted. Android does not expose an ANCS server like iOS devices do, so I think you will have to create a custom app that implements an ANCS or a similar GATT server.&nbsp;</p><div style="clear:both;"></div>