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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Instant access to call log with new ios 18 commands
Hello, I am wondering about developing my application. Can the new commands available with iOS 18 give me access to the call log (recent calls)? With a request prior to installing the application for example. I saw that Truecaller has just launched an update on iOS to offer the same features as Android, i.e. capture the call log. Apple allows applications like Truecaller to integrate their spam databases into the iOS caller ID system. I wonder by which command! Otherwise, I can perhaps use the "SMS and Call Spam Reporting" commands and divert them to retrieve the call log. To tell you the truth, I'm trying to find, for my application, a way to retrieve recent call data to create a call dashboard of certain calls, by retrieving the name or phone number, call date, call time and call duration. Does anyone have an idea?
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1.4k
Oct ’24
iOS 18 Different Behavior in CallKit with Dynamic Island Phones
We’ve encountered significant differences in our VoIP app’s workflow between iOS 17 and iOS 18, particularly on devices with Dynamic Island. Our app functioned as expected in iOS 17 and even iOS 18 on devices without Dynamic Island, but with the public release of iOS 18 on Dynamic Island-supported iPhones, we’re receiving a lot of feedback from users reporting confusing behavior during both incoming and outgoing calls. Here’s a breakdown of the issue: In iOS 17 and iOS 18 (on non-Dynamic Island models), when our app initiates a second call, the app remains in the foreground, allowing the user to see both calls within our UI. Users can manage their calls, swap between them, and even merge them, all without leaving the app. If the user switches to the CallKit controller via the app switcher, it reflects the state of the calls in our app, which has worked well for our users. However, on iOS 18 devices with Dynamic Island, adding a second call now backgrounds our app and brings the CallKit controller UI to the foreground. This causes confusion, as users lose context of managing multiple calls within our app. Though users can switch back to our app manually, this extra step disrupts their workflow, especially when handling multiple active calls. This change doesn't occur on iOS 18 devices without Dynamic Island. Additionally, during an active call, if an incoming call arrives, the Dynamic Island notification takes over, and the app UI is again backgrounded in favor of the CallKit controller screen. Even when declining the incoming call from the notification, the user remains in the CallKit controller UI, requiring another step to return to our app using the app switcher or the "app" button in CallKit. This inconsistent behavior makes call management unnecessarily complex for our users, who need a streamlined experience, especially since our app is used in healthcare communications that is often critical in nature. Is there any documentation on changes to CallKit behavior specific to Dynamic Island devices in iOS 18? We’d appreciate any guidance on designing a VoIP experience that doesn’t involve these disruptive view switches, particularly for Dynamic Island-supported iPhones. Thank you for your help!
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1.3k
Nov ’24
iOS 18.1 Call Record.. How to Test when based in Europe
I am a developer based in Ireland. I updated an iPhone 12 to iOS18.1 Beta 4 in order to investigate the Call Record Feature. We have a VoIP App and I wanted to see if there is any interaction with this new Call Record feature. However there is no option appearing for me under Settings ->Apps->Phone for Call RECORD My suspicion is that this is because I am in Europe and Apple Intelligence is not available here. We have our Apps available in the USA so is there anyway that I can enable Call record for some testing. Alternatively does anybody know if Call record should work with Callkit VoIP Apps?
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829
Sep ’24
CallKit: Blocked Calls Appearing as Unanswered in iOS 18
Hello Apple Developer Community, I'm developing a call-blocking app for iOS and have encountered an issue with iOS 18. Despite calls being successfully blocked by our app's Call Directory extension, they are still appearing as unanswered calls in the native Phone app. Details: iOS version: 18 App uses CallKit and Call Directory extension Calls are blocked successfully (not ringing on device) Blocked calls show up as "Unanswered" in Phone app's recent calls list Expected behavior: Blocked calls should not appear in the Phone app's recent calls list. Actual behavior: Blocked calls appear as "Unanswered" in the recent calls list.
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2.2k
Jan ’25
VOIP rejection
The app declares support for Voice-over IP (VoIP) in the UIBackgroundModes key in your Info.plist, but we are still unable to locate any VoIP services. Apps that declare support for VoIP in the UIBackgroundModes key in your Info.plist file must have features that require VoIP. My app rejected for VOIP and the app is totally supported video call or call when app is terminated or in background how can. i solve that rejection issue
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669
Sep ’24
Live Caller ID Lookup Extension - No option in phone settings
iOS 18 (22A3354) will not offer a option in settings (> Apps > Phone) after calling openSettings to enable live caller id lookup extension. iPhone and MacBook are in the same network. The PIRService runs on MacBook and is reachable via iPhone Safari (via http://MacBookPro:8080/). Hummingbird print log: hb_method=GET hb_uri=/ [Hummingbird] Request. After deploying the application via Xcode to the iPhone no requests are printed in the terminal. The extension was added like documented and bundle id is also checked multiple times. issuerRequestUri in service-config.json is http://MacBookPro:8080/issue. As far as I can tell, everything has been set up in accordance with the Testing Live Caller ID instructions. Is there something missing?
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1.3k
Jan ’25
Callkit blocking behaviour is overridden in iOS 18
In iOS 18 if a number is registered with CallKit to be blocked, then if that number is also in contacts, then the number isn't blocked. If a user has added a number to their contacts, then in all probability they might not want the number blocked, so this might seem reasonable behaviour. However the point is, this is new behaviour for CallKit in iOS 18, and its never been like this before going back several years to the very first release. Why suddenly change it now, after all these years, without notice nor documentation, and take away that option from the user, should for some reason, they want to block a number which is also in their contacts. This is quite a disruptive change for apps using CallKit.
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1.5k
Oct ’24
Can a Live Caller ID server supply live data or must it be static?
With the Live Caller ID example server, the caller lookup dataset is defined in an input.txtpd and processed by running a ConstructDatabase command which creates a block.binpb and an identity.binpb file. In other words, a static input file is being processed into static block and identity files. However, in the real world, the data content for identified and blocked numbers is something which is in a constant state of flux and evolution, as new numbers becoming available, old ones become stale, numbers which were initially considered safe change into being considered malicious etc. etc. Is the example server just that, merely an example using fixed datasets, and an actual production server is able to use live every changing data to formulate its response back to the iPhone OS query? Here's a concrete use case - suppose it's a requirement to permit US nanp numbers but to block anything else. The total number of non US nanp numbers is so large and ever changing that it would be unfeasible to attempt to capture them in an input.txtpd file and then process that, and then to re-capture and re-process it endlessly. Instead what would be required is the ability for the Live Caller ID server to evaluate at query time, using a regular expressions for example, if a number is nanp or not. Is this possible?
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796
Mar ’25
Is it possible for a Live Caller ID server to specify different datasets?
In the documentation for the example Live Caller ID server (https://swiftpackageindex.com/apple/live-caller-id-lookup-example/main/documentation/pirservice/testinginstructions) there is an example service-config.json. file shown (without thorough documentation). That config file, and the whole of the instructions, center around there being two datasets of numbers: block and identity. My question is - is it possible for more than one dataset to be specified i.e. for block1 and block2 to be specified? The use case for this would be - suppose the Live Caller ID server has a set of numbers it has identified as being nuisance callers and so it lists these in the block section. However user A might want all these nuisance callers to be blocked but user B does not. Therefore the Live Caller ID extension on the handset would need to use a different dataset on the server so that user A's calls from a set of numbers is blocked, but user B's are not. Note that I'm not suggesting that the Caller ID server should be capable of storing individual user's preferences. All that would be required would be two data sets: one where blocked content is none and and one where blocked content is some. Then a user/app could switch between them as indicated by the user. Is that possible? If the database structure and service-config.json etc. is not configured to permit that, then could two different servers be set up to achieve this instead? i.e. so the server url specified in the app's extension can be set at run time and not at compile time?
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903
Mar ’25
Call Blocking and Identification Not Working in iOS 18 Beta
We are experiencing an issue with the Call Blocking and Identification feature in iOS 18 Beta. This feature was functioning correctly in iOS 17, but after updating to the iOS 18 Beta, it no longer works as expected looks like iOS is blocking the number because we are getting notification but still we are getting the direct calls. We have attached the Kindly waiting for you replay. Thanks.
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3.5k
Sep ’24
VoIP push notifications may not be received
Users of my app have reported that they are sometimes unable to receive Voice-over-IP (VoIP) push notifications when using a SIM. (There is no problem when using WiFi) VoIP push notifications were not received during the following period. Could you confirm diagnostic logs and could you please tell me why my app can't receive VoIP push? [diagnostic logs] https://drive.google.com/drive/folders/1gSAbr1Fy1SrjlmRXuAzoXqiaxnNbFhj8?usp=sharing [Problem period] 2024/06/17 05:34:59 - 2024/06/17 09:04:42 Number of times that the push server pushed and it received a normal APNs response: 31 Number of times that iPhone received pushes: 0 2024/06/17 23:05:03 - 2024/06/18 09:02:16 Number of times that the push server pushed and it received a normal APNs response: 192 Number of times that iPhone received pushes: 0 2024/06/15 00:35:56 - 2024/06/15 09:55:57 Number of times that the push server pushed and it received a normal APNs response: 138 Number of times that iPhone received pushes: 0
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1.6k
Sep ’24
After unholding CallKit, the audio does not restore.
In my application, I use CallKit and have supportsHolding = true set. During my phone call, another call comes in (e.g., GSM). I accept the incoming call and put the current call on hold. If I end the active call myself, everything is fine, and CallKit calls the method provider(_ provider: CXProvider, didActivate audioSession: AVAudioSession). However, if the other party ends the call, the second call remains on hold. In the application, the user clicks on unhold, and I notify CallKit that the hold has ended. But in this case, the didActivate method is not called at all. If I try to activate the audio myself after unhold, I receive the error: Domain=NSOSStatusErrorDomain Code=561017449 "Session activation failed" UserInfo={NSLocalizedDescription=Session activation failed} AVAudioSessionErrorInsufficientPriority == NSOSStatusErrorDomain Code: 561017449 What needs to be done for CallKit to activate my audio?
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1.4k
Feb ’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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2.1k
May ’25
Database disk image is malformed in Call Blocking
I have an app developed by using the Callkit/Call-Blocking and received feedback from individual users, when using [cxcalldirectorymanager reloadextensionwithidentifier] to write call blocking data, it returned error code 11 with the following contents: errorCode: 11 errorDomain: com.apple.callkit.database.sqlite errorDescription: sqlite3_step for query 'DELETE FROM PhoneNumberBlockingEntry WHERE extension_id =?' returned 11 (11) errorMessage 'database disk image is malformed' I want to know the reasons for this error and how to solve it,Thanks!
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1k
Apr ’25
CallKit outgoing calls UI
i thought it is impossible to have CallKit show system UI for outgoing calls. but then i saw this: "For incoming and outgoing calls, CallKit displays the same interfaces as the Phone app..." https://developer.apple.com/documentation/callkit how do i present it though? or is this a documentation error?
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1.2k
Mar ’25