iPhone PUSH notification "doesn't have registered PUSH devices"

[pmterp]

We have a single user on a system that has been complaining that her incoming call notifications are inconsistent.
What I see in the logs has me a little confused.

2025/08/25 11:56:33.252|0068|Info| Sending PUSH call-started for dn=5016, replaces=iZkaPcx9QyvXXXXXCCsSJw..;from-tag=116fc964;to-tag=16776279, callerid=6108, callername=XXXX, Id=13049.74048, image=
2025/08/25 11:56:33.252|0068|Info| [_3CX.Push.PushTransport] IV: Sending PUSH to extension 5016 device iPhone 15 Pro
2025/08/25 11:56:33.252|0068|Info| [_3CX.Push.PushTransport] Sending PUSH to the device iPhone 15 Pro  of ext.5016. apns-id=06c3e6b6-db8e-42e9-XXXXX-3d83070187bb
2025/08/25 11:56:33.252|0068|Info| [_3CX.HttpClient] Sending 'POST/2.0' to 'https://api.push.apple.com/3/device/5e1653ae9608de04b5e3ce866bb3e3ff28402cce590cd67b6861233bXXXX'
2025/08/25 11:56:33.319|0028|Info| [_3CX.HttpClient] Received '200 OK' after 66.8ms
2025/08/25 11:56:33.319|0028|Info| [_3CX.Push.PushTransport] Response from APNS for 06c3e6b6-db8e-42e9-XXXX-3d83070187bb: Status: 200, Reason:
2025/08/25 11:56:33.382|0005|Debg| Enqueue Updated.CONNECTION.74047
2025/08/25 11:56:33.382|0031|Debg| Dequeue Updated.CONNECTION.74047
2025/08/25 11:56:33.382|0031|Debg| DN 5016 doesn't have registered PUSH devices

The line that shows the response with a 200 status makes me think it's working fine. But the last line confuses me.

 

[TheodorosG_3CX]

Is the 3CX app registered to the PBX?

 

[pmterp]

Is the 3CX app registered to the PBX?

Yes, the user was able to make outbound calls.