Using Hold Assist
Hold Assist allows your iPhone to detect when you're placed on hold during a call and will then alert you when a live agent is on the line. Instead of listening to hold music, your iPhone keeps the call active in the background, allowing you to use other apps, and notifies you with a ring when someone is ready to talk.
1.
From an on-going phone call where you have been placed on hold, scroll up on your Apple Watch to open Smart Stack.
2.
Scroll to and tap Enable Music Detection.
3.
Scroll to and tap Turn On.
Now you can go on about your day and your Apple Watch will notify you that you're off hold.
4.
You've completed the steps!
