Walkie Talkie not available
When I try to use the walkie talkie feature it tells me my contact is not available.
Apple Watch SE, watchOS 8
Use Walkie-Talkie on your Apple Watch - Apple Support
M1 Mac mini, macOS 12.5; Watch, series 5 GPS/cellular, watchOS 8.7; iPad Pro 2nd Gen, iPadOS 15.6; iPhone 12 Pro, iOS 15.6; TV 4th Gen, tvOS 15.6; HomePods, audioOS 15.5.1 and Airport Express w/ Airplay 2