Salam aleykum
I was just wondering if it would be possible to add just a takbeer as shorter sound and if it would be possible especially to set the volume at a specific independent level from the ones of phone notifications, or at least the same level used for the alarm of the phone, so to have a steady volume whatever the situation.
Also, the mosque nearby where I live uses a customized angle for Fajr (14,5) but a fixed time after maghreb (+90min) for Isha, would it be possible to combine the two angle/time settings for fajr/Isha so to use them independently combined?

Thank you