Devices appear multiple times in Calls on Other Devices

Originator:zwaldowski
Number:rdar://21594160 Date Originated:29-Jun-2015 01:52 PM
Status:Open Resolved:false
Product:iOS Product Version:iOS 9.0 beta 2 (13A4280e)
Classification:Other Bug Reproducible:Sometimes
 
Summary:
Some of my devices have duplicate entries in the Wi-Fi Calling/Calls on Other Devices settings pane for my devices. Typically, only one of the entries, when turned on, will trigger PIN entry on that device. Toggling the other entry doesn't do anything.

Steps to Reproduce:
1. Upgrade multiple devices to iOS 9/El Capitan
2. Restore one of the non-iPhone devices
3. On iPhone, open Settings > Phone > Calls on Other Devices
4. Observe multiple entries

Expected Results:
There is only one entry in the list for each of my iPads, Macs, and Apple Watches.

Actual Results:
There are duplicate entries for my Apple Watch and one of my Macs.

Version:
iOS 9.0 beta 2 (13A4280e)

Notes:
The issue seems to be linked to restoring devices without deactivating Wi-Fi Calling first, such as with using Recovery Mode on iPad, Reset All Content and Settings on Apple Watch, or reformatting my Mac.

The issue does not seem to affect other iCloud services; the list of devices at iCloud.com has no duplication.

Configuration:
iPhone 6 Plus 64GB T-Mobile, using Wi-Fi

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