Display the system-calling UI for your app’s VoIP services and coordinate your calling services with other apps and the system using CallKit.

Posts under CallKit tag

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Is it possible to show a permission dialog when the device is locked?
Hello, I'm trying to handle the following use case right after app installation: Display a microphone permission modal on the lock screen before answering an incoming call notification However, I've been searching for a way to show permission modals while the screen is locked, but I couldn't find any solution in other forums or documentation. I've also checked several calling apps, and it appears that none of them display permission modals either. Is this an OS specification/limitation? Are there any workarounds available?
1
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592
Jun ’25
Audio and VoIP background mode
I am building banking application which has audio/video and text chat. It is intended for contacting bank support. When user device has auto lock on after 30 seconds, session is ended, and user needs to initiate it again. Will Apple allow this kind of application to have Audio, Airplay, and Picture in Picture or Voice over IP for background modes for this kind of application or it is against Apple rules (per 2.5.4 - https://developer.apple.com/app-store/review/guidelines/)? Chat framework uses Web sockets and SIP.
1
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406
May ’25
Live Lookup flow stuck at /issue/token-key-for-user-token endpoint
Hi Apple engineering team, I’m trying to integrate the new Live Caller ID Lookup (PIR) on iOS using your pir-service-example code as well as a custom mock server in Vapor, but the extension never advances past the /issue/token-key-for-user-token step. I’ve tried both: 1. Official Example Cloned https://github.com/apple/pir-service-example Ran PIRService locally Confirmed that GET /.well-known/private-token-issuer-directory → 200 GET /issue/token-key-for-user-token → 200 (DER bytes, correct SPKI) No POST /issue ever fires 2. Mock Server (Vapor) Implemented all five endpoints (/config, /.well-known/private-token-issuer-directory, /issue/token-key-for-user-token, /issue, /queries) Verified with curl and openssl asn1parse that: GET /.well-known/private-token-issuer-directory Content-Type: application/private-token-issuer-directory { "issuer-request-uri":"https://…/issue", "token-keys":[…] } GET /issue/token-key-for-user-token Content-Type: application/octet-stream <DER bytes> Added Cache-Control: public, max-age=3600 on directory and SPKI Stubbed POST /issue to always return { "token": "" } Still no POST /issue request from the extension Reproduction Steps Install and enable a Live Lookup extension pointing to my server. Trigger an incoming call on device. Watch server logs—only see the two GETs, never /issue or /queries. Expected Behavior After fetching the SPKI DER, the framework should issue a POST /issue call (Privacy Pass flow) and then POST /queries. Observed Behavior Stuck in an infinite loop of: GET /.well-known/private-token-issuer-directory GET /issue/token-key-for-user-token (repeat…) No progression to the /issue or /queries endpoints. What I’ve Tried Verified JSON kebab-case and headers exactly match examples Confirmed SPKI DER is valid via openssl asn1parse Added Cache-Control headers Tested on real device, localhost url, and ngrok public URL Mocked a valid-looking token response Could you advise what additional requirement or format detail I’m missing that prevents from advancing past /issue/token-key-for-user-token? These are the main files: LiveLookupExtension.swift routes.swift service-config.json Thanks in advance!
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365
May ’25
Pushkit/Callkit with unlocked SIM before first unlock
We have a problem in a scenario that SIM lock is disabled so after a phone reboots it has the Internet connection but it is still locked. When you call into the VOIP app the app is not being launched as the result (it seems reasonable because it wouldn't be able to access the keychain items etc...) but the OS still seem to enforce the rule that the app needs to report the new incoming call. When we then unlock the app we can see no more pushkit pushes are arriving (dropped on the floor in the console) but we get the three initial pushes that were send during the locked phase right after the app launch.
4
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559
May ’25
0xBAADCA11 Occurs when VoIP Call Incoming (APNs Push Notification)
I am developing a VoIP phone application(Our Phoneapp) using APNs VoIP push. I have a question regarding a behavior I discovered during testing of this application. When performing the following operations using an iPhoneSE3 with an sXGP-NW SIM inserted, 0xBAADCA11 occurs upon receiving an APNs VoIP PUSH. Do you have any information regarding this issue? 0xBAADCA11 occurs in operation 8. However, since there were no problems in operation 4 (the app works when Wi-Fi is off), I think there is no issue with the Our Phoneapp. [Configuration of system components] [VoIP Telephone] --Call to iPhone(Phoneapp)--> [Our VoIP PBX Server] -- VoIP PUSH request --> [Apple APNs Server] -- VoIP PUSH --> [Our Phoneapp (iPhoneSE3(with sXGP SIM)] [Operations] (The issue is reproducible 100% by following oparation) iPhoneSE3: Power on (iPhoneSE3 with sXGP SIM) iPhoneSE3: Wi-Fi off, connect to the internet via SIM. VoIP Telephone: Call to Our Phoneapp iPhoneSE3: Receives VoIP PUSH and Phoneapp launches. Successfully answers the call and communication is possible. (Receives VoIP push notification from APNs via sXGP SIM) iPhoneSE3: Wi-Fi is turned ON, connect to the internet via Wi-Fi. iPhoneSE3: Task kill Our Phoneapp. VoIP Telephone: Call to Our Phoneapp iPhoneSE3: iOS does not call the push notification delegate (didReceiveIncomingPushWithPayload). As a result our Phoneapp is unable to detect the incoming call, However, an ips log with 0xBAADCA11 is output. in other words, iOS received the VoIP PUSH, but Our Phoneapp dose not call CallKit, so Our Phoneapp was terminated by iOS.
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1.1k
May ’25
Need to check Call Status without using CallKit
My app requirement is to check that User is on call while doing transaction. If user on call then we need to show Caution alert. For this requirement we used CallKit to detect Call status and it's working fine but recently Apple has rejected the application because of Callkit that is banned in China. Could you please provide any solution to check the Call Status only.
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1k
May ’25
Live Caller ID Lookup: OHTTP Gateway Rejection
Hello, After submitting onboarding form for Live Caller ID Lookup feature, we received rejection response that our OHTTP gateway doesn't support HTTP/2. We have run provided command openssl s_client -alpn h2 -connect with our domain several times from different machines and environments, and our results consistently confirm that HTTP/2 is indeed supported by our OHTTP gateway. The output clearly shows ALPN protocol: h2, indicating successful HTTP/2 negotiation. Here is the log chunk from the command-line response: No client certificate CA names sent Peer signing digest: SHA256 Peer signature type: RSA-PSS Server Temp Key: X25519, 253 bits --- SSL handshake has read 4393 bytes and written 406 bytes Verification: OK --- New, TLSv1.3, Cipher is TLS_AES_128_GCM_SHA256 Server public key is 2048 bit This TLS version forbids renegotiation. Compression: NONE Expansion: NONE ALPN protocol: h2 Early data was not sent Verify return code: 0 (ok) --- DONE We have also tried different 3rd-party services to check the HTTP/2 support and they also confirmed that HTTP/2 is supported. Is it possible to provide additional details on the specific criteria or test conditions that led to its non-approval? I'm happy to provide any further diagnostic information or engage in more detailed technical discussion.
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573
May ’25
Call directory extension name not localised in settings iOS 15.3
I have two call directory extensions, each with InfoPlist.strings in en.lproj and nb.lproj directories. In these files I've defined CFBundleDisplayName for both locales. These names are displayed under Settings -> Phone -> Call Blocking & Identification. On iOS 12.2 the names are displayed correctly in both Norwegian and English. Testing on iOS 15.3 the English names are displayed even when device language is set to Norwegian. Worth noting: When updating the English versions of CFBundleDisplayName this is immediately reflected in Call Blocking & Identification page with Norwegian device language. As this feature requires a real device, I'm unable to test on iOS 13 and 14.
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2.5k
May ’25
App Suspended during active voip call on Xcode 16
We have started facing an issue after updating Xcode from version 15.2 to 16, we have a voip application with webview and call kit, and we have the Background Modes capabilities: Voip, Audio, Background fetch, and Background processing. We had no problem on Xcode 15, but ever since updating Xcode 16 and sdk 18, when app goes into the background during an active call, the app is suspended and no events are triggered UNTIL the app is resumed to the foreground.
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535
May ’25
Cannot enable Calldirectory Extension
Hello, I recently created an app with the Calldirectory Extension. It worked all good as long as I was on my development iphone. I tried to install the app on my privat iphone (same phone/same os version), but then I faced an issue. I couldn't enable the Calldirectory Extension with an error (Error Enabling Extension Failed to request data for APPNAME. You may try enabling the extension again, and if the problem persists, conatact the application developer.)
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242
Apr ’25
The proximity sensor works abnormal in some devices.
Steps to Reproduce make an outbound call cover the sensor Actual Behavior the screen won't go dark device iOS Result iphone15 17 Pass iphone14p 18.0.1 Pass iphoneXs_pro max 18.1.1 Pass iphone13pro max 18.2.1 Pass iphone16pro 18.2 Fail iphone15pro max 18.3 Fail iphone12 pro max 18.3 Fail ps: Skype has the same probelm Seems like this issue only happens on iOS18.2+ on some devices, so is there a bug for this?
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542
Apr ’25
Not Receiving Incoming VoIP Push Notifications on iOS 18.4 (React Native App)
Hi Apple Dev Team, We have a React Native application that includes call functionality using PushKit and VoIP notifications. We are using APNS to send the VoIP notifications, and everything has been working smoothly on iOS versions up to 18.3.1. However, after updating to iOS 18.4, we are no longer receiving incoming VoIP push notifications on the device. There have been no code changes related to our PushKit or notification logic — the exact same build continues to work correctly on devices running iOS 18.3.1 and earlier. We're trying to understand if anything has changed in iOS 18.4 that affects VoIP push delivery or registration behavior. Would appreciate any guidance, and happy to share code snippets or configuration if needed. Thanks in advance!
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439
Apr ’25
Default Calling App on vehicle (Bluetooth)
I have a question about the default calling function that is supported by third-party apps on iOS from 18.2. In most cases, it works normally with the default calling app setting, but the problem occurs when connected to the vehicle via Bluetooth. Install the app that sets the default calling app on the device. Keep the phone locked. Connect the Bluetooth to the vehicle. Try to make a call using the phone button on the vehicle's steering wheel. When trying to make a call from the vehicle, the call fails (It seems that the app cannot be opened when the phone is locked even if the default calling app setting is on.) When you unlock the phone and turn on the app, the call is made. As far as I understand, if the app scheme is called with tel:// when set as the default calling app, it only proceeds with the intent connection to the app set as the default calling app, and the permissions that Apple's default call app has cannot be used. Accordingly, my questions are as follows: Is there a way to make a call with an external phone call input when locked on device? If 1 is not possible, can you provide a branch to Apple's default call app (telephony://) in the above situation?
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634
Apr ’25
LiveCommunicationKit
What I want to achieve now is that when the app is not running, upon receiving a notification, it displays an interface similar to CallKit with accept and decline buttons. Here is part of my code: @available(iOS 17.4, *) class LiveCommunicationManager: NSObject, ConversationManagerDelegate { static let shared = LiveCommunicationManager() var isInvalidate:Bool = false var configuration: ConversationManager! override init() { let config = ConversationManager.Configuration( ringtoneName: "notes_of_the_optimistic", iconTemplateImageData: UIImage(named: "AppIcon")?.pngData(), // 图标的 PNG 数据 maximumConversationGroups: 1, // 最大对话组数 maximumConversationsPerConversationGroup: 1, // 每个对话组内最大对话数 includesConversationInRecents: false, // 是否在通话记录中显示 supportsVideo: false, // 是否支持视频 supportedHandleTypes: [.generic,.phoneNumber,.emailAddress] // 支持的通话类型 ) configuration = ConversationManager.init(configuration: config) } func reportIncomingCall(uuid: UUID, callerName: String) { configuration.delegate = self let local = Handle(type: .generic, value: callerName, displayName: callerName) let update = Conversation.Update(localMember: local,members: [local],activeRemoteMembers: [local]) Task{ do { try await configuration.reportNewIncomingConversation(uuid: uuid, update: update) print("成功报告新来电") } catch { print("报告新来电失败: \(error.localizedDescription)") } } } func conversationManager(_ manager: ConversationManager, conversationChanged conversation: Conversation) { print("会话状态改变了") } func conversationManagerDidBegin(_ manager: ConversationManager) { print("会话已经开始了") manager.delegate = self } func conversationManagerDidReset(_ manager: ConversationManager) { print("会话将要清除了") } func conversationManager(_ manager: ConversationManager, perform action: ConversationAction) { print("会话接听了") configuration.invalidate() } func conversationManager(_ manager: ConversationManager, timedOutPerforming action: ConversationAction) { print("会话超时了") } func conversationManager(_ manager: ConversationManager, didActivate audioSession: AVAudioSession) { print("会话激活了") } func conversationManager(_ manager: ConversationManager, didDeactivate audioSession: AVAudioSession) { print("会话死亡了") } } 在Appdelegate里设置了这些: func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) { // 在这里处理离线推送通知 completionHandler(.noData) // 返回后台任务完成 if let aps = userInfo["aps"] as? [String: Any], let alert = aps["alert"] as? [String : Any]{ // 静默推送的处理逻辑 if #available(iOS 17.4, *) { let manager = LiveCommunicationManager.shared if manager.isInvalidate { return } if let msgType = userInfo["msgType"] as? Int{ if msgType == 5{ manager.configuration.invalidate() }else{ let callerName = alert["title"] as? String ?? "Fanvil" manager.reportIncomingCall(uuid: UUID(), callerName: callerName) } } } } } Xcode has been configured with the necessary capabilities, such as Background Fetch, Voice over IP, Background Processing, and Push Notification. The issue now is that sometimes the code works as expected, allowing the app to wake up when not running and displaying the system interface with accept and decline buttons. However, after a few successful attempts, the app stops waking up, and no notification appears. But when I manually open the app, the didReceiveRemoteNotification method gets triggered. I’d like to know why this stops working after a few times.
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426
Apr ’25
Can APNs handle large numbers of VoIP requests in real time?
I am developing a system to send VoIP notifications to terminals with APNs. I understand that the maximum JSON Payload for VoIP is 5kb. If I want to send VoIP notifications to 3000 terminals, I am considering sending 3000 requests in parallel from the system to the APNs, will the APNs guarantee that the notifications will be sent to each terminal without a significant time lag when receiving 3000 requests simultaneously?
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445
Apr ’25
Behavior of CallKit with multiple incoming calls
Hi, Team. We are currently creating a VoIP calling app using pjsip and want to be able to handle 4 calls at the same time. It is also necessary to be able to notice calls that are on hold or have not answered yet in hands-free (without looking the screen). However, It seems like CallKit has the intention to silence the ringtone when multiple calls come in. Problem What does actually happen? If a second call comes in while the first one have not answered yet, CallKit screen keeps showing about the first one. If tapped "Accept" button, the second call ends. If tapped "Decline" button, CallKit screen shows about the second call at last. If the first call has put on hold before the second one comes in, CallKit screen shows "Hold & Accept" button even though the first call is already on hold. When "Hold & Accept" button is displayed, ringtones and other sounds from app stop. When tapped "Hold & Accept" button for the second call and then unhold the first one in provider(_ provider: CXProvider, perform action: CXAnswerCallAction), ringtone of the first call doesn't ring. What is expected to happen? If a second call comes in while the first one have not answered yet, CallKit screen shows about the second call. If tapped "Accept" button, the second call starts and the first call is displayed on CallKit screen. If tapped "Decline" button, the first call appears again. If the first call has put on hold before the second one comes in, CallKit screen shows only "Accept" and "Decline" button (not in full screen). If a second call comes in while the first one have not answered yet, ringtones continue to ring. When accepted the second call, ringtone of the first call rings again. Information Sample code Using CallKit to simulate three incoming calls and two alarm notifications. Whether or not the first call is put on hold before the second one comes in is switchable from the bottom menu. https://github.com/ryu-akaike/CallKit-Multiple-Incoming-Test Versions macOS: Sequoia 15.1 Xcode: 16.2 iPhone: 11 iOS: 18.1.1 Thank you. Ryu Akaike
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Mar ’25
Incoming call notifications problems
Good day We developed a simple swift code to make the device ringing when a certain type of notifications arrives from our backend. This is the code: let phoneNumber = CXHandle(type: .generic, value: (self.userInfoForPluginCall!["data"] as! [String:Any]) ["caller"] as! String) callUpdate.remoteHandle = phoneNumber let configuration = CXProviderConfiguration(localizedName: "Trec Conf") configuration.maximumCallGroups = 1 configuration.maximumCallsPerCallGroup = 1 configuration.supportsVideo = false configuration.supportedHandleTypes = [.generic] configuration.iconTemplateImageData = UIImage(named: "callkit-icon")?.pngData() let callProvider = CXProvider(configuration: configuration) callProvider.setDelegate(self, queue: nil) callProvider.reportNewIncomingCall(with: callUUID!, update: callUpdate, completion: {error in}) We are noticing some problems on the call screen: on certain devices (iOS 18.4RC) the normal call screen appears and the user can answer or decline the call, on other devices (iOS 18.3, especially with dynamic island) only a phone icon appears in the upper right corner and no possibility to answer or deny call. Any idea on why we are encountering that behavior? Thanks
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Mar ’25
Call Tracking with CallKit Works in Debug Mode but Not in Release (TestFlight) – iOS
I am working on an iOS app using Flutter that tracks outgoing calls using CallKit. The call tracking functionality works perfectly in Debug mode but does not work when the app is published to TestFlight. I have already added Background Modes (voip, audio, processing, fetch) in Info.plist. I have added CallKit.framework in Xcode under Link Binary With Libraries (set to Optional). <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>aps-environment</key> <string>production</string> </dict> </plist> These are the necessary permission which I used in info.plist: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>BGTaskSchedulerPermittedIdentifiers</key> <array> <string>com.agent.mygenie</string> </array> <key>CADisableMinimumFrameDurationOnPhone</key> <true/> <key>CFBundleDevelopmentRegion</key> <string>$(DEVELOPMENT_LANGUAGE)</string> <key>CFBundleDisplayName</key> <string>MyGenie</string> <key>CFBundleDocumentTypes</key> <array/> <key>CFBundleExecutable</key> <string>$(EXECUTABLE_NAME)</string> <key>CFBundleIdentifier</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>CFBundleInfoDictionaryVersion</key> <string>6.0</string> <key>CFBundleName</key> <string>mygenie</string> <key>CFBundlePackageType</key> <string>APPL</string> <key>CFBundleShortVersionString</key> <string>$(FLUTTER_BUILD_NAME)</string> <key>CFBundleSignature</key> <string>????</string> <key>CFBundleVersion</key> <string>$(FLUTTER_BUILD_NUMBER)</string> <key>LSRequiresIPhoneOS</key> <true/> <key>NSCallKitUsageDescription</key> <string>This app needs access to CallKit for call handling</string> <key>NSContactsUsageDescription</key> <string>This app needs access to your contacts for calls</string> <key>NSMicrophoneUsageDescription</key> <string>This app needs access to microphone for calls</string> <key>NSPhotoLibraryUsageDescription</key> <string>This app needs access to photo library for profile picture updation</string> <key>UIApplicationSupportsIndirectInputEvents</key> <true/> <key>UIBackgroundModes</key> <array> <string>voip</string> <string>processing</string> <string>fetch</string> <string>audio</string> </array> <key>UILaunchStoryboardName</key> <string>LaunchScreen</string> <key>UIMainStoryboardFile</key> <string>Main</string> <key>UISupportedInterfaceOrientations</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> <key>UISupportedInterfaceOrientations~ipad</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationPortraitUpsideDown</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> [code.txt](https://developer.apple.com/forums/content/attachment/0a327dbd-652e-41d5-8811-c462d09e0567) </dict> </plist> And below is the file are AppDelegate.swift, call_tracking_mixin.dart, & main_call.dart file for full knowledge
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223
Mar ’25
Is it possible to show a permission dialog when the device is locked?
Hello, I'm trying to handle the following use case right after app installation: Display a microphone permission modal on the lock screen before answering an incoming call notification However, I've been searching for a way to show permission modals while the screen is locked, but I couldn't find any solution in other forums or documentation. I've also checked several calling apps, and it appears that none of them display permission modals either. Is this an OS specification/limitation? Are there any workarounds available?
Replies
1
Boosts
0
Views
592
Activity
Jun ’25
Audio and VoIP background mode
I am building banking application which has audio/video and text chat. It is intended for contacting bank support. When user device has auto lock on after 30 seconds, session is ended, and user needs to initiate it again. Will Apple allow this kind of application to have Audio, Airplay, and Picture in Picture or Voice over IP for background modes for this kind of application or it is against Apple rules (per 2.5.4 - https://developer.apple.com/app-store/review/guidelines/)? Chat framework uses Web sockets and SIP.
Replies
1
Boosts
0
Views
406
Activity
May ’25
Live Lookup flow stuck at /issue/token-key-for-user-token endpoint
Hi Apple engineering team, I’m trying to integrate the new Live Caller ID Lookup (PIR) on iOS using your pir-service-example code as well as a custom mock server in Vapor, but the extension never advances past the /issue/token-key-for-user-token step. I’ve tried both: 1. Official Example Cloned https://github.com/apple/pir-service-example Ran PIRService locally Confirmed that GET /.well-known/private-token-issuer-directory → 200 GET /issue/token-key-for-user-token → 200 (DER bytes, correct SPKI) No POST /issue ever fires 2. Mock Server (Vapor) Implemented all five endpoints (/config, /.well-known/private-token-issuer-directory, /issue/token-key-for-user-token, /issue, /queries) Verified with curl and openssl asn1parse that: GET /.well-known/private-token-issuer-directory Content-Type: application/private-token-issuer-directory { "issuer-request-uri":"https://…/issue", "token-keys":[…] } GET /issue/token-key-for-user-token Content-Type: application/octet-stream &lt;DER bytes&gt; Added Cache-Control: public, max-age=3600 on directory and SPKI Stubbed POST /issue to always return { "token": "" } Still no POST /issue request from the extension Reproduction Steps Install and enable a Live Lookup extension pointing to my server. Trigger an incoming call on device. Watch server logs—only see the two GETs, never /issue or /queries. Expected Behavior After fetching the SPKI DER, the framework should issue a POST /issue call (Privacy Pass flow) and then POST /queries. Observed Behavior Stuck in an infinite loop of: GET /.well-known/private-token-issuer-directory GET /issue/token-key-for-user-token (repeat…) No progression to the /issue or /queries endpoints. What I’ve Tried Verified JSON kebab-case and headers exactly match examples Confirmed SPKI DER is valid via openssl asn1parse Added Cache-Control headers Tested on real device, localhost url, and ngrok public URL Mocked a valid-looking token response Could you advise what additional requirement or format detail I’m missing that prevents from advancing past /issue/token-key-for-user-token? These are the main files: LiveLookupExtension.swift routes.swift service-config.json Thanks in advance!
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0
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365
Activity
May ’25
Pushkit/Callkit with unlocked SIM before first unlock
We have a problem in a scenario that SIM lock is disabled so after a phone reboots it has the Internet connection but it is still locked. When you call into the VOIP app the app is not being launched as the result (it seems reasonable because it wouldn't be able to access the keychain items etc...) but the OS still seem to enforce the rule that the app needs to report the new incoming call. When we then unlock the app we can see no more pushkit pushes are arriving (dropped on the floor in the console) but we get the three initial pushes that were send during the locked phase right after the app launch.
Replies
4
Boosts
0
Views
559
Activity
May ’25
0xBAADCA11 Occurs when VoIP Call Incoming (APNs Push Notification)
I am developing a VoIP phone application(Our Phoneapp) using APNs VoIP push. I have a question regarding a behavior I discovered during testing of this application. When performing the following operations using an iPhoneSE3 with an sXGP-NW SIM inserted, 0xBAADCA11 occurs upon receiving an APNs VoIP PUSH. Do you have any information regarding this issue? 0xBAADCA11 occurs in operation 8. However, since there were no problems in operation 4 (the app works when Wi-Fi is off), I think there is no issue with the Our Phoneapp. [Configuration of system components] [VoIP Telephone] --Call to iPhone(Phoneapp)--> [Our VoIP PBX Server] -- VoIP PUSH request --> [Apple APNs Server] -- VoIP PUSH --> [Our Phoneapp (iPhoneSE3(with sXGP SIM)] [Operations] (The issue is reproducible 100% by following oparation) iPhoneSE3: Power on (iPhoneSE3 with sXGP SIM) iPhoneSE3: Wi-Fi off, connect to the internet via SIM. VoIP Telephone: Call to Our Phoneapp iPhoneSE3: Receives VoIP PUSH and Phoneapp launches. Successfully answers the call and communication is possible. (Receives VoIP push notification from APNs via sXGP SIM) iPhoneSE3: Wi-Fi is turned ON, connect to the internet via Wi-Fi. iPhoneSE3: Task kill Our Phoneapp. VoIP Telephone: Call to Our Phoneapp iPhoneSE3: iOS does not call the push notification delegate (didReceiveIncomingPushWithPayload). As a result our Phoneapp is unable to detect the incoming call, However, an ips log with 0xBAADCA11 is output. in other words, iOS received the VoIP PUSH, but Our Phoneapp dose not call CallKit, so Our Phoneapp was terminated by iOS.
Replies
13
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0
Views
1.1k
Activity
May ’25
Need to check Call Status without using CallKit
My app requirement is to check that User is on call while doing transaction. If user on call then we need to show Caution alert. For this requirement we used CallKit to detect Call status and it's working fine but recently Apple has rejected the application because of Callkit that is banned in China. Could you please provide any solution to check the Call Status only.
Replies
3
Boosts
0
Views
1k
Activity
May ’25
Live Caller ID Lookup: OHTTP Gateway Rejection
Hello, After submitting onboarding form for Live Caller ID Lookup feature, we received rejection response that our OHTTP gateway doesn't support HTTP/2. We have run provided command openssl s_client -alpn h2 -connect with our domain several times from different machines and environments, and our results consistently confirm that HTTP/2 is indeed supported by our OHTTP gateway. The output clearly shows ALPN protocol: h2, indicating successful HTTP/2 negotiation. Here is the log chunk from the command-line response: No client certificate CA names sent Peer signing digest: SHA256 Peer signature type: RSA-PSS Server Temp Key: X25519, 253 bits --- SSL handshake has read 4393 bytes and written 406 bytes Verification: OK --- New, TLSv1.3, Cipher is TLS_AES_128_GCM_SHA256 Server public key is 2048 bit This TLS version forbids renegotiation. Compression: NONE Expansion: NONE ALPN protocol: h2 Early data was not sent Verify return code: 0 (ok) --- DONE We have also tried different 3rd-party services to check the HTTP/2 support and they also confirmed that HTTP/2 is supported. Is it possible to provide additional details on the specific criteria or test conditions that led to its non-approval? I'm happy to provide any further diagnostic information or engage in more detailed technical discussion.
Replies
1
Boosts
7
Views
573
Activity
May ’25
Call directory extension name not localised in settings iOS 15.3
I have two call directory extensions, each with InfoPlist.strings in en.lproj and nb.lproj directories. In these files I've defined CFBundleDisplayName for both locales. These names are displayed under Settings -> Phone -> Call Blocking & Identification. On iOS 12.2 the names are displayed correctly in both Norwegian and English. Testing on iOS 15.3 the English names are displayed even when device language is set to Norwegian. Worth noting: When updating the English versions of CFBundleDisplayName this is immediately reflected in Call Blocking & Identification page with Norwegian device language. As this feature requires a real device, I'm unable to test on iOS 13 and 14.
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7
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0
Views
2.5k
Activity
May ’25
App Suspended during active voip call on Xcode 16
We have started facing an issue after updating Xcode from version 15.2 to 16, we have a voip application with webview and call kit, and we have the Background Modes capabilities: Voip, Audio, Background fetch, and Background processing. We had no problem on Xcode 15, but ever since updating Xcode 16 and sdk 18, when app goes into the background during an active call, the app is suspended and no events are triggered UNTIL the app is resumed to the foreground.
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0
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535
Activity
May ’25
When receiving a call with CallKit on iOS18 or later, the app's dark mode icon will be displayed
As the title says. This happens even when not in dark mode.
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3
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0
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352
Activity
May ’25
Cannot enable Calldirectory Extension
Hello, I recently created an app with the Calldirectory Extension. It worked all good as long as I was on my development iphone. I tried to install the app on my privat iphone (same phone/same os version), but then I faced an issue. I couldn't enable the Calldirectory Extension with an error (Error Enabling Extension Failed to request data for APPNAME. You may try enabling the extension again, and if the problem persists, conatact the application developer.)
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1
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242
Activity
Apr ’25
The proximity sensor works abnormal in some devices.
Steps to Reproduce make an outbound call cover the sensor Actual Behavior the screen won't go dark device iOS Result iphone15 17 Pass iphone14p 18.0.1 Pass iphoneXs_pro max 18.1.1 Pass iphone13pro max 18.2.1 Pass iphone16pro 18.2 Fail iphone15pro max 18.3 Fail iphone12 pro max 18.3 Fail ps: Skype has the same probelm Seems like this issue only happens on iOS18.2+ on some devices, so is there a bug for this?
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3
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0
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542
Activity
Apr ’25
Callkit banner issue on ios 18.4
i am seeing a call icon on CallKit incoming call screen for a PushKit-initiated call (without caller information like name or number)
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0
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285
Activity
Apr ’25
Not Receiving Incoming VoIP Push Notifications on iOS 18.4 (React Native App)
Hi Apple Dev Team, We have a React Native application that includes call functionality using PushKit and VoIP notifications. We are using APNS to send the VoIP notifications, and everything has been working smoothly on iOS versions up to 18.3.1. However, after updating to iOS 18.4, we are no longer receiving incoming VoIP push notifications on the device. There have been no code changes related to our PushKit or notification logic — the exact same build continues to work correctly on devices running iOS 18.3.1 and earlier. We're trying to understand if anything has changed in iOS 18.4 that affects VoIP push delivery or registration behavior. Would appreciate any guidance, and happy to share code snippets or configuration if needed. Thanks in advance!
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1
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1
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439
Activity
Apr ’25
Default Calling App on vehicle (Bluetooth)
I have a question about the default calling function that is supported by third-party apps on iOS from 18.2. In most cases, it works normally with the default calling app setting, but the problem occurs when connected to the vehicle via Bluetooth. Install the app that sets the default calling app on the device. Keep the phone locked. Connect the Bluetooth to the vehicle. Try to make a call using the phone button on the vehicle's steering wheel. When trying to make a call from the vehicle, the call fails (It seems that the app cannot be opened when the phone is locked even if the default calling app setting is on.) When you unlock the phone and turn on the app, the call is made. As far as I understand, if the app scheme is called with tel:// when set as the default calling app, it only proceeds with the intent connection to the app set as the default calling app, and the permissions that Apple's default call app has cannot be used. Accordingly, my questions are as follows: Is there a way to make a call with an external phone call input when locked on device? If 1 is not possible, can you provide a branch to Apple's default call app (telephony://) in the above situation?
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1
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634
Activity
Apr ’25
LiveCommunicationKit
What I want to achieve now is that when the app is not running, upon receiving a notification, it displays an interface similar to CallKit with accept and decline buttons. Here is part of my code: @available(iOS 17.4, *) class LiveCommunicationManager: NSObject, ConversationManagerDelegate { static let shared = LiveCommunicationManager() var isInvalidate:Bool = false var configuration: ConversationManager! override init() { let config = ConversationManager.Configuration( ringtoneName: "notes_of_the_optimistic", iconTemplateImageData: UIImage(named: "AppIcon")?.pngData(), // 图标的 PNG 数据 maximumConversationGroups: 1, // 最大对话组数 maximumConversationsPerConversationGroup: 1, // 每个对话组内最大对话数 includesConversationInRecents: false, // 是否在通话记录中显示 supportsVideo: false, // 是否支持视频 supportedHandleTypes: [.generic,.phoneNumber,.emailAddress] // 支持的通话类型 ) configuration = ConversationManager.init(configuration: config) } func reportIncomingCall(uuid: UUID, callerName: String) { configuration.delegate = self let local = Handle(type: .generic, value: callerName, displayName: callerName) let update = Conversation.Update(localMember: local,members: [local],activeRemoteMembers: [local]) Task{ do { try await configuration.reportNewIncomingConversation(uuid: uuid, update: update) print("成功报告新来电") } catch { print("报告新来电失败: \(error.localizedDescription)") } } } func conversationManager(_ manager: ConversationManager, conversationChanged conversation: Conversation) { print("会话状态改变了") } func conversationManagerDidBegin(_ manager: ConversationManager) { print("会话已经开始了") manager.delegate = self } func conversationManagerDidReset(_ manager: ConversationManager) { print("会话将要清除了") } func conversationManager(_ manager: ConversationManager, perform action: ConversationAction) { print("会话接听了") configuration.invalidate() } func conversationManager(_ manager: ConversationManager, timedOutPerforming action: ConversationAction) { print("会话超时了") } func conversationManager(_ manager: ConversationManager, didActivate audioSession: AVAudioSession) { print("会话激活了") } func conversationManager(_ manager: ConversationManager, didDeactivate audioSession: AVAudioSession) { print("会话死亡了") } } 在Appdelegate里设置了这些: func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -&gt; Void) { // 在这里处理离线推送通知 completionHandler(.noData) // 返回后台任务完成 if let aps = userInfo["aps"] as? [String: Any], let alert = aps["alert"] as? [String : Any]{ // 静默推送的处理逻辑 if #available(iOS 17.4, *) { let manager = LiveCommunicationManager.shared if manager.isInvalidate { return } if let msgType = userInfo["msgType"] as? Int{ if msgType == 5{ manager.configuration.invalidate() }else{ let callerName = alert["title"] as? String ?? "Fanvil" manager.reportIncomingCall(uuid: UUID(), callerName: callerName) } } } } } Xcode has been configured with the necessary capabilities, such as Background Fetch, Voice over IP, Background Processing, and Push Notification. The issue now is that sometimes the code works as expected, allowing the app to wake up when not running and displaying the system interface with accept and decline buttons. However, after a few successful attempts, the app stops waking up, and no notification appears. But when I manually open the app, the didReceiveRemoteNotification method gets triggered. I’d like to know why this stops working after a few times.
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0
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426
Activity
Apr ’25
Can APNs handle large numbers of VoIP requests in real time?
I am developing a system to send VoIP notifications to terminals with APNs. I understand that the maximum JSON Payload for VoIP is 5kb. If I want to send VoIP notifications to 3000 terminals, I am considering sending 3000 requests in parallel from the system to the APNs, will the APNs guarantee that the notifications will be sent to each terminal without a significant time lag when receiving 3000 requests simultaneously?
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4
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0
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445
Activity
Apr ’25
Behavior of CallKit with multiple incoming calls
Hi, Team. We are currently creating a VoIP calling app using pjsip and want to be able to handle 4 calls at the same time. It is also necessary to be able to notice calls that are on hold or have not answered yet in hands-free (without looking the screen). However, It seems like CallKit has the intention to silence the ringtone when multiple calls come in. Problem What does actually happen? If a second call comes in while the first one have not answered yet, CallKit screen keeps showing about the first one. If tapped "Accept" button, the second call ends. If tapped "Decline" button, CallKit screen shows about the second call at last. If the first call has put on hold before the second one comes in, CallKit screen shows "Hold &amp; Accept" button even though the first call is already on hold. When "Hold &amp; Accept" button is displayed, ringtones and other sounds from app stop. When tapped "Hold &amp; Accept" button for the second call and then unhold the first one in provider(_ provider: CXProvider, perform action: CXAnswerCallAction), ringtone of the first call doesn't ring. What is expected to happen? If a second call comes in while the first one have not answered yet, CallKit screen shows about the second call. If tapped "Accept" button, the second call starts and the first call is displayed on CallKit screen. If tapped "Decline" button, the first call appears again. If the first call has put on hold before the second one comes in, CallKit screen shows only "Accept" and "Decline" button (not in full screen). If a second call comes in while the first one have not answered yet, ringtones continue to ring. When accepted the second call, ringtone of the first call rings again. Information Sample code Using CallKit to simulate three incoming calls and two alarm notifications. Whether or not the first call is put on hold before the second one comes in is switchable from the bottom menu. https://github.com/ryu-akaike/CallKit-Multiple-Incoming-Test Versions macOS: Sequoia 15.1 Xcode: 16.2 iPhone: 11 iOS: 18.1.1 Thank you. Ryu Akaike
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2
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578
Activity
Mar ’25
Incoming call notifications problems
Good day We developed a simple swift code to make the device ringing when a certain type of notifications arrives from our backend. This is the code: let phoneNumber = CXHandle(type: .generic, value: (self.userInfoForPluginCall!["data"] as! [String:Any]) ["caller"] as! String) callUpdate.remoteHandle = phoneNumber let configuration = CXProviderConfiguration(localizedName: "Trec Conf") configuration.maximumCallGroups = 1 configuration.maximumCallsPerCallGroup = 1 configuration.supportsVideo = false configuration.supportedHandleTypes = [.generic] configuration.iconTemplateImageData = UIImage(named: "callkit-icon")?.pngData() let callProvider = CXProvider(configuration: configuration) callProvider.setDelegate(self, queue: nil) callProvider.reportNewIncomingCall(with: callUUID!, update: callUpdate, completion: {error in}) We are noticing some problems on the call screen: on certain devices (iOS 18.4RC) the normal call screen appears and the user can answer or decline the call, on other devices (iOS 18.3, especially with dynamic island) only a phone icon appears in the upper right corner and no possibility to answer or deny call. Any idea on why we are encountering that behavior? Thanks
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367
Activity
Mar ’25
Call Tracking with CallKit Works in Debug Mode but Not in Release (TestFlight) – iOS
I am working on an iOS app using Flutter that tracks outgoing calls using CallKit. The call tracking functionality works perfectly in Debug mode but does not work when the app is published to TestFlight. I have already added Background Modes (voip, audio, processing, fetch) in Info.plist. I have added CallKit.framework in Xcode under Link Binary With Libraries (set to Optional). <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>aps-environment</key> <string>production</string> </dict> </plist> These are the necessary permission which I used in info.plist: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>BGTaskSchedulerPermittedIdentifiers</key> <array> <string>com.agent.mygenie</string> </array> <key>CADisableMinimumFrameDurationOnPhone</key> <true/> <key>CFBundleDevelopmentRegion</key> <string>$(DEVELOPMENT_LANGUAGE)</string> <key>CFBundleDisplayName</key> <string>MyGenie</string> <key>CFBundleDocumentTypes</key> <array/> <key>CFBundleExecutable</key> <string>$(EXECUTABLE_NAME)</string> <key>CFBundleIdentifier</key> <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string> <key>CFBundleInfoDictionaryVersion</key> <string>6.0</string> <key>CFBundleName</key> <string>mygenie</string> <key>CFBundlePackageType</key> <string>APPL</string> <key>CFBundleShortVersionString</key> <string>$(FLUTTER_BUILD_NAME)</string> <key>CFBundleSignature</key> <string>????</string> <key>CFBundleVersion</key> <string>$(FLUTTER_BUILD_NUMBER)</string> <key>LSRequiresIPhoneOS</key> <true/> <key>NSCallKitUsageDescription</key> <string>This app needs access to CallKit for call handling</string> <key>NSContactsUsageDescription</key> <string>This app needs access to your contacts for calls</string> <key>NSMicrophoneUsageDescription</key> <string>This app needs access to microphone for calls</string> <key>NSPhotoLibraryUsageDescription</key> <string>This app needs access to photo library for profile picture updation</string> <key>UIApplicationSupportsIndirectInputEvents</key> <true/> <key>UIBackgroundModes</key> <array> <string>voip</string> <string>processing</string> <string>fetch</string> <string>audio</string> </array> <key>UILaunchStoryboardName</key> <string>LaunchScreen</string> <key>UIMainStoryboardFile</key> <string>Main</string> <key>UISupportedInterfaceOrientations</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> <key>UISupportedInterfaceOrientations~ipad</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationPortraitUpsideDown</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> [code.txt](https://developer.apple.com/forums/content/attachment/0a327dbd-652e-41d5-8811-c462d09e0567) </dict> </plist> And below is the file are AppDelegate.swift, call_tracking_mixin.dart, & main_call.dart file for full knowledge
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223
Activity
Mar ’25