Video button on CallKit UI is disabled for Video VoIP call, only on notch devices.

Question

neha24 OP

Created 1w

Replies 3

Boosts 0

Participants 2

We've observed an issue where the video button on the CallKit UI is disabled during Video VoIP calls.

This issue appears to be specific to notch devices running SDK 26 and iOS 26 beta 7, specifically on iPhone 11. We have not seen this behavior on devices with Dynamic Island or on older iOS versions.

For further details, please refer to the attached video and sysdiagnose file. : FB19827793

Our experimentation suggests this issue is exclusively present on non-Dynamic Island devices with iOS 26 beta.

Boost

Answer 1

DTS Engineer OP

Apple

1w

We've observed an issue where the video button on the CallKit UI is disabled during Video VoIP calls. This issue appears to be specific to notch devices running SDK 26 and iOS 26 beta 7, specifically on iPhone 11. We have not seen this behavior on devices with Dynamic Island or on older iOS versions. For further details, please refer to the attached video and sysdiagnose file. : FB19827793

This is a weird one. Can you reproduce this in Speakerbox? And does it happen if you're don't have the PushToTalk system active? From what I can tell in the logs, its seems like this might be caused by some kind of interaction with the PTT system.

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Kevin Elliott
DTS Engineer, CoreOS/Hardware

0

Answer 2

neha24 OP

1d

Further testing on other devices, including the iPhone 13 (iOS 26 beta 8) and other dynamic island devices, indicates that the issue is not present on those models.

However, the issue is consistently observed and reproducible only on the iPhone 11 (iOS 26 beta 8). This device is with customer and unable to deploy the Speakerbox.

0

Answer 3

neha24 OP

1d

Issue is only happening with one of the devices which is with customer and we cannot deploy the Speakerbox. We tried by disabling the PTT system in the issue observed device and the issue is still observed. Attached logs and video in the feedback. FB19827793

This is a weird one. Can you reproduce this in Speakerbox? And does it happen if you're don't have the PushToTalk system active? From what I can tell in the logs, its seems like this might be caused by some kind of interaction with the PTT system.

0