How to know that call is being diverted?

You can tell that a call is being diverted if you hear a different ringtone or a message indicating that the call is being forwarded. Additionally, if the call connects to a voicemail or another number instead of the intended recipient, it may indicate call diversion. Some phone systems also provide visual cues, like a notification or a specific icon on the screen. If you suspect call diversion, it's best to check with the recipient or their service provider for confirmation.