VoIP (Voice over IP) Push is a notification mechanism provided by Apple for responding to VoIP calls. Combining Apple's PushKit.framework and CallKit.framework can achieve system-level call effects. Currently, VoIP Push only supports push notifications when offline.
Note:
Apple requires that VoIP Push be used in conjunction with the CallKit.framework starting with iOS 13.0; otherwise, the app will crash after running.
Configuring VoIP Push
To receive VoIP Push notifications, follow these steps:
1. Apply for a VoIP Push certificate.
2. Upload the certificate to the IM console.
3. Complete the project configuration.
4. Integrate the TUICallKitVoIPExtension component.
Step 1: Apply for a VoIP Push certificate
Once your AppID has Push Notification capabilities, follow these steps to apply for and configure a VoIP Push certificate:
1. Log in to the Apple Developer Center website, click "Certificates, Identifiers & Profiles" in the sidebar, and go to the "Certificates, IDS & Profiles" page. 2. Click "+" next to "Certificates".
3. In the "Create a New Ceritificate" tab, select "VoIP Services Certificate" and click "Continue".
4. In the "Select an App ID for your VoIP Service Certificate" tab, select your app's BundleID, and click "Continue".
5. The system will prompt you for a Certificate Signing Request (CSR).
6. Next, create a CSR file. Open Keychain Access on your Mac, and in the menu, choose Keychain Access - Certificate Assistant - Request a Certificate From a Certificate Authority.
7. Enter your email address, common name (your name or company name), choose Save to disk, click "Continue", and the system will generate a *.certSigningRequest
file.
Go back to the Apple Developer website in Step5 , click "Choose File" and upload the generated *.certSigningRequest file. 8. Click Continue to generate the certificate, and click Download to download the corresponding certificate to your local device.
9. Double-click the downloaded voip_services.cer
file, and the system will import it into your keychain.
10. Open the Keychain app, under Login > My Certificates, right-click on the created VoIP Services certificate.
Note:
When saving the P12
file, be sure to set a password for it.
Step 2: Upload certificates to the IM Console
Open the IM Console,select your created IM application, and follow the steps below to upload your certificates: 1. Choose your IM application, click Go new under the Offline Push Certificate Configuration tab.
2. In the Manufacturer configuration, switch to iOS, click the Add Certificate button. Then upload the VoIP certificates for both the production and development environments.
Note:
The VoIP Push Certificate itself does not distinguish between production and testing environments. Both environments use the same VoIP Push Certificate.
The uploaded certificate name should be in English (especially avoiding brackets and other special characters).
The uploaded certificate must have a password set, or the push notification won't be received.
The certificate for publishing to the App Store needs to be set to the production environment; otherwise, the push notification won't be received.
The p12 certificate you upload must be a valid and genuinely applied certificate.
3. After the upload is completed, record the certificate ID for different environments.
Step 3: Complete the project configuration
1. As shown below, confirm whether the Push Notification capability has been added to your project's capabilities.
2. As shown below, please check if the Voice over IP option is enabled under Background Modes in your project's capabilities.
Step 4: Integrate the TUICallKitVoIPExtension component
Use CocoaPods to import the component, following these steps:
1. Add the following dependency to your Podfile
.
pod 'TUICallKitVoIPExtension'
2. Execute the command below to install the component.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
TUICallKitVoIPExtension.setCertificateID(CertificateID)
return true
}
Note:
If you cannot install the latest version of TUICallKit, execute the command below to update your local CocoaPods repository list.
Make a VoIP call
If you need to make a VoIP call, you need to set the iOSPushType field of the OfflinePushInfo to TUICallIOSOfflinePushTypeVoIP
when calling call. The default value is TUICallIOSOfflinePushTypeAPNs
. - (TUICallParams *)getCallParams {
TUIOfflinePushInfo *offlinePushInfo = [self createOfflinePushInfo];
TUICallParams *callParams = [TUICallParams new];
callParams.offlinePushInfo = offlinePushInfo;
callParams.timeout = 30;
return callParams;
}
- (TUIOfflinePushInfo *)createOfflinePushInfo {
TUIOfflinePushInfo *pushInfo = [TUIOfflinePushInfo new];
pushInfo.title = @"";
pushInfo.desc = @"You have a new call";
pushInfo.iOSPushType = TUICallIOSOfflinePushTypeVoIP;
pushInfo.ignoreIOSBadge = NO;
pushInfo.iOSSound = @"phone_ringing.mp3";
pushInfo.AndroidSound = @"phone_ringing";
pushInfo.AndroidOPPOChannelID = @"tuikit";
pushInfo.AndroidFCMChannelID = @"fcm_push_channel";
pushInfo.AndroidVIVOClassification = 1;
pushInfo.AndroidHuaWeiCategory = @"IM";
return pushInfo;
}
[[TUICallKit createInstance] call:@"Mike's ID" params:[self getCallParams] callMediaType:TUICallMediaTypeVideo succ:nil fail:nil];
TUICallDefine.OfflinePushInfo offlinePushInfo = new TUICallDefine.OfflinePushInfo();
offlinePushInfo.setTitle("");
offlinePushInfo.setDesc("You have receive a new call");
offlinePushInfo.setAndroidOPPOChannelID("tuikit");
offlinePushInfo.setIgnoreIOSBadge(false);
offlinePushInfo.setIOSSound("phone_ringing.mp3");
offlinePushInfo.setAndroidSound("phone_ringing");
offlinePushInfo.setAndroidVIVOClassification(1);
offlinePushInfo.setAndroidFCMChannelID("fcm_push_channel");
offlinePushInfo.setAndroidHuaWeiCategory("IM");
offlinePushInfo.setIOSPushType(TUICallDefine.IOSOfflinePushType.VoIP);
TUICallDefine.CallParams params = new TUICallDefine.CallParams();
params.offlinePushInfo = offlinePushInfo;
TUICallKit.createInstance(context).call("mike", TUICallDefine.MediaType.Video, params, null);
TUIOfflinePushInfo offlinePushInfo = TUIOfflinePushInfo();
offlinePushInfo.title = "Flutter TUICallKit";
offlinePushInfo.desc = "This is an incoming call from Flutter TUICallkit";
offlinePushInfo.ignoreIOSBadge = false;
offlinePushInfo.iOSSound = "phone_ringing.mp3";
offlinePushInfo.androidSound = "phone_ringing";
offlinePushInfo.androidOPPOChannelID = "Flutter TUICallKit";
offlinePushInfo.androidVIVOClassification = 1;
offlinePushInfo.androidFCMChannelID = "fcm_push_channel";
offlinePushInfo.androidHuaWeiCategory = "Flutter TUICallKit";
offlinePushInfo.iOSPushType = TUICallIOSOfflinePushType.VoIP;
TUICallParams params = TUICallParams(offlinePushInfo: offlinePushInfo);
TUICallKit.instance.call(callUserId, TUICallMediaType.audio, params);
Call from the system call log
If you want to initiate a one-on-one audio or video call directly by clicking the call record in the System Phone - Recent Calls list, you need to use the callWith method in the TUICallKitVoIPExtension component in the Application lifecycle callback function. Here's an example:
Note:
Only supports dialing one-on-one audio and video calls directly.
The logged-in account must be the same account.
1. On iOS 13 (and later versions) with SceneDelegate support, and with a minimum compatibility version prior to iOS 13, you need to implement the following methods in AppDelegate and SceneDelegate respectively.
- (BOOL)application:(UIApplication *)application continueUserActivity:(nonnull NSUserActivity *)userActivity restorationHandler:(nonnull void (^)(NSArray<id<UIUserActivityRestoring>> * _Nullable))restorationHandler {
[TUICallKitVoIPExtension callWith:userActivity];
return YES;
}
- (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions {
[connectionOptions.userActivities enumerateObjectsUsingBlock:^(NSUserActivity * _Nonnull userActivity, BOOL * _Nonnull stop) {
[TUICallKitVoIPExtension callWith:userActivity];
}];
}
- (void)scene:(UIScene *)scene continueUserActivity:(NSUserActivity *)userActivity {
[TUICallKitVoIPExtension callWith:userActivity];
}
2. On iOS 13 (and later versions) without SceneDelegate, you only need to implement the following method in AppDelegate.
- (BOOL)application:(UIApplication *)application continueUserActivity:(nonnull NSUserActivity *)userActivity restorationHandler:(nonnull void (^)(NSArray<id<UIUserActivityRestoring>> * _Nullable))restorationHandler {
[TUICallKitVoIPExtension callWith:userActivity];
return YES;
}
Frequently Asked Questions
Can't receive VoIP Push
1. First, check if the App's running environment and the certificate environment are consistent, and if the certificate ID matches. If they are inconsistent, you won't be able to receive push notifications.
2. Please make sure your currently logged-in account is offline: press the home key to switch to the background, or log in and then manually kill the process to exit. VoIP Push currently only supports push notifications in offline mode.
4. Try restarting the test phone to clear the system cache and memory.
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