Hello, I am currently developing a call service using CallKit and VoIP push. Recently, I have encountered a very challenging issue. During testing, when a VoIP push is received, the incomingCall gets triggered continuously, but then it automatically terminates after about 1-2 seconds. I am checking this issue under the debug scheme, and even when switching to different commits, the same problem persists. I suspect it might be an issue with the device, but I would like to confirm the cause and find a solution. Below are some characteristics I have noticed: On this device, when a VoIP push is received, CallKit automatically terminates, but this does not occur when debugging. The issue always occurs when not debugging. Looking at the device console logs related to callservicesd, there are many logs with 'invalidate' appended. For example: Invalidating process assertion for bundle ID from timeout All calls ended. Clearing system uplink muted cache Invalidate callDurationUpdateTimer InCallService has changed process state to 2 InCallService has been suspended; invalidating its XPC client connections. [0x565544180] invalidated because the current process cancelled the connection by calling xpc_connection_cancel() XPC connection invalidated from client These logs appear although our server did not receive any incoming call request, so we did not terminate it on our end. I also checked if there was a crash, but there were no reports left on the device. Could you please share any insights into the cause or solutions for this situation? Thank you.

Hello, I am developing a service using capture sessions. I have a question concerning something curious I've noticed. Occasionally, I've been informed that the capture session stops working. Upon investigation, I found records of the videoDeviceNotAvailableWithMultipleForegroundApps interruption on the devices. From what I've looked up in the documents, it seems to occur due to multitasking capabilities, but I'm wondering if there are any specific scenarios where this happens on iPhone devices? Here is the relevant documentation link: https://developer.apple.com/documentation/avfoundation/avcapturesession/interruptionreason/videodevicenotavailablewithmultipleforegroundapps I suspect it might have something to do with Picture-in-Picture (PIP) mode, but when I developed and tested a direct video streaming PIP, the issue did not occur. Does anyone have insights on this matter or related experiences they could share?

Hello, I am developing an application using VoIP Push and CallKit. I have a question: Starting with iOS 13, I understand that under the VoIP Push policy, if reportNewIncomingCall is not called continuously, the VoIP Push may be blocked. Is there a way to determine if the device has been blocked? I am curious whether PKPushRegistry itself is unable to receive pushes or if reportNewIncomingCall returns an error when it is blocked. If push notifications are not being received, what should I do to resume receiving them? Thank you.

Hello, I'm developing with SwiftUI and have encountered some bug-like behavior that I haven't been able to resolve, so I'm seeking your assistance. I'm building my view using TextEditor, ScrollViewReader, and List, and I've noticed a strange behavior. When the TextEditor at the bottom of the view is focused and the keyboard is displayed, if I change the keyboard type to Emoji and then switch back to the language keyboard, the scroll becomes misaligned. Although the TextEditor remains focused, when this bug occurs, the view's offset is reset as if the focus was lost. Could you help me with this?

Hello, We are implementing an mVOIP service using CallKit. I have a question. When receiving a call with CallKit, the CXEndCallAction callback is received by the provider after one minute. We didn't request this separately on our end. Is this a policy from Apple? If so, is it possible to modify this behavior, and are there any related APIs or documentation? Thank you.

Hello, I'm using CallKit to manage the AudioSession. When I deactivate it with the notifyOthersOnDeactivation option, interruptions don't seem to be working correctly when checking other apps. Can anyone assist me? This issue is unique to my app. Should I follow a specific timing for deactivation?

Hello, I'm trying to test a call in the Simulator using CallKit. However, after the CXStartCallAction of CallKit is called, the CXEndCallAction is immediately invoked. I conducted the test using Xcode 15.2 and iOS 17.2 Simulator. When I searched because I couldn't test it on the Simulator, I found a similar issue on the following link. https://stackoverflow.com/questions/78291725/callkit-invokes-cxendcallaction-after-starting-the-call-resulting-in-hangup-on The person who asked the question in the link tested it with the previous version iOS 15.5 Simulator and it worked fine. Why isn't it working in the latest version? Is it a bug? Or has the policy been updated? If there are any documents available to check regarding this matter, please share them.

Hello, I am developing a service using Voip Push. Recently, it seems that Voip Push notifications are occasionally arriving late. Does anyone have information regarding this issue? Sometimes, when the delay is prolonged, notifications from a few days ago also seem to be received. Thank you.

When setting the mode during the configuration of an audio session in Swift, the previously configured categoryOptions get reset. For example, if you perform setMode as shown below, you will observe that all previously set categoryOptions are cleared. Example: try AVAudioSession.sharedInstance().setCategory(.playAndRecord, mode: .videoChat, options: [.allowBluetooth, .defaultToSpeaker]) try AVAudioSession.sharedInstance().setMode(.voiceChat) If you need to change the mode while maintaining the categoryOptions, you have to perform setCategory once again. Although the exact reason for this behavior has not been identified, the practical impact on the application's functionality is not yet clear. Why do you think this handling is in place?

Hello! I'm a developer working on developing a telephony service using VoIP. I've been keeping records of calls, but I've noticed some strange behavior. I'm wondering if anyone has experienced similar issues and if there are any solutions. Currently, the setting includesCallsInRecents is set to true. The issues I'm encountering are as follows: Check the records after a voice call. Check the records after a video call. Check the records after another voice call. During the third step, I observed that all records of the second video call disappeared. Does anyone have any insights or assistance regarding this issue? After conducting another video call and checking again, I noticed that previous video call records are displayed along with the new ones. However, when I conduct a voice call, the records disappear again. I'm wondering if this is an operating system bug or if there's a specific place I can check to investigate. Any information would be greatly appreciated!