Yes, the API SDK is still on version 1.40. My production app has SDK Version Target of 27, tested on devices with level 24 API (Xiaomi Redmi Note 4X, real device) and level 26 API (Nexus Emulator)....
I also forgot to mention that I already included these permissions and added permission requesting methods only for microphone/audio recording since I only wanted to use Voice Call feature only. I ...