Final answer:
Three places where hold music can be set are voicemail system, call center queue, and conference calls.
Step-by-step explanation:
Three places where hold music can be set are:
- Voicemail system: When a caller is directed to a voicemail box, they may hear hold music while waiting to leave a message.
- Call center queue: Call centers often play hold music to callers waiting in the queue for an available representative.
- Conference calls: Hold music can also be played during conference calls to provide some background music for the participants while waiting for the call to begin.
Other places where hold music can be set include social media platforms, although this is less common.