As per android developer documentation  
 Android 8.0 (API level 26) introduces several new permissions related
 to telephony: The ANSWER_PHONE_CALLS permission allows your app to
 answer incoming

Free caller ID, caller ID: who called, where they called from, blocking spam

All the modern Intel CPUs have RISC-core inside the chip. The core implements abstraction layer that interprets user-visible instruction set to invisible hardware-internal RISC instructions. RISC core has maximum privileges and it can manipulate data directly.

The microcode program built-in the chip, but the S and UEFI may apply some patches – microcode updates. Unfortunately, it is encrypted and there is poor public information on its working. Due to this, has no public research about internal structure of Intel CPU microcode.

Now we found a way that you can get access to it on the public-available platform. In the talk of ZeroNights 2021, authors describe the structure of microcode for the Intel Atom platform, how their proof of concept works and hijacking user-visible x86 instruction. They describe the approach how they did reverse engineering of microcode format and internal structure of Intel Atom.

The slides and all the materials of ZeroNights X can be found on the official website.