Sorry,
Since the V01_20170517 update, BT recognition is faster.

Hello!
The following problem: I carry hearing aids with an auxiliary device (streamer). This streamer can transmit both telephony and music to the hearing aids and is connected to the mobile phone via Bluetooth. Pairing works without problems. Listening to music is also possible, but calling only goes as far as I hear nothing when choosing. Under Android 6 It all worked without problems why under Android 7 not