What is AF in Telecom?

Hi experts.

I have read about Application Function in 4G EPC.

Is AF an entity or only a logical function?

What is the best example of AF except P-CSCF?

What is AF in Telecom

AF was designed to be consumed by applications other than P-CSCF, but was never really used for anything other than the P-CSCF.

Some of the MCPTT functionality rely on the functionality to setup dedicated bearers, but that’s the only other use case I’m aware of.