It seems our company server is sending to Apple push service the push notifications that are supposed to be transferred to devices our app is installed on – but you it seems you are blocking the request
We can see traffic going out from our server side towards the apple gateway notification server using port 2195 and we can see that the traffic gets "server-rst" meaning that the apple gateway server kills the connection
You might need to whitelist our external IP's
Notifications
RSS for tagLearn about the technical aspects of notification delivery on device, including notification types, priorities, and notification center management.
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We would like to better understand the discrepancy between a Push To Start and the subsequent Updates where I see a number of recipients drop greatly.
Our assumption is that this is a result of the end user not clicking the "Allow" prompt when a push to start widget is shown on the screen for the first time, but we currently do not have a way to listen to the user's choice when prompted.
Is there any way of tapping into this, to determine if this is in fact where the variance is coming from, or if there is actually just a problem with the request to retrieve the update token from our end?
We are in the process of transferring our app to a new Apple Developer Organization account. Our app uses the Apple Push Notification service (APNs) with a .p8 authentication key configured on our server to send push notifications.
We would like to confirm:
Once the app transfer is completed, will push notifications continue to work temporarily using the existing .p8 key on our server, until we generate and configure a new .p8 key under the new organization's account?
Understanding this behavior is critical for us to ensure a smooth transition and avoid any disruption in push notification delivery for our users.
Thank you for your guidance and support.
My Mac app has a launch agent (within the app bundle) that works great without the app running. There are some occasions where I need to display an alert and ask the user to launch the app to handle the issue. I thought about using UNUserNotificationCenter but I'm not able to make it work from the agent.
I'm asking for authorization as follows:
[center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert | UNAuthorizationOptionSound | UNAuthorizationOptionBadge)
completionHandler:^(BOOL granted, NSError * _Nullable error) {
NSLog(@"authorization request completion. Granted: %@, error: %@ (%@)",granted?@"YES":@"NO",error, [error localizedDescription]);
}];
And I'm trying to post the notification as follows:
content.title = @"Your App Name";
content.body = @"Click the button to open the app";
content.sound = [UNNotificationSound defaultSound];
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:[[NSUUID UUID] UUIDString]
content:content
trigger:nil];
[center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
if (error) {
NSLog(@"Error showing notification: %@ %@", error, [error localizedDescription]);
}
}];
When running I'm getting asked to authorize, I authorize and all seems OK in system settings but I'm not able send any notifications. addNotificationRequest results in UNErrorCodeNotificationsNotAllowed error.
I tried this with the authorization request inside the main app, or inside the agent, with the same results.
When trying to post the notification from within the app, it does work, but that's not what I need.
Is posting notifications from within the launch agent not possible at all, or is there anything here that I'm missing.
TIA
I am developing an application that uses NetworkExtension (Local PUSH function) And VoIP(APNs) PUSH.
Nowadays, I found a problem on this app doesn't handle incoming call of Local PUSH when receiving a Local PUSH after receiving an APNs PUSH.
My confimation result of my app and server log is below.
11:00 AM:
my server(PBX) requests a VoIP(APNs) PUSH notification to the APNs.
But my app does not receive the VoIP(APNs) PUSH.
At this time, my app is running on LAN (Wi-Fi without internet connection), as a result, NetworkExtension was running. so I think this is normal behaviour.
14:55:11 PM:
There is an incoming call from the my server(PBX) via local net, and NetworkExtension calls iOS API(API name is reportIncomingCall).
However, iOS does not call the delegate didReceiveIncomingCallWithUserInfo for the reportIncomingCall.
14:55:11 PM:
At almost the same time, iOS calls the delegate cdidReceiveIncomingPushWithPayload of VoIP PUSH.
(instead of call the delegate didReceiveIncomingCallWithUserInfo for the reportIncomingCall?)
And the content of this VoIP(APNs) PUSH was the incoming call at "11:00 AM".
In other words, the VoIP(APNs) PUSH at 11:00 AM is stuck inside iOS, and at 14:55:11 PM, from NetworkExtension reports it.
I feel there is a problem on iOS doesn't handle incoming call of Local PUSH when receiving a Local PUSH after receiving an VoIP(APNs) PUSH.
Would you tell me Apple's opioion about this?
If this is known problem, Please tell me about it.
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
User Notifications
PushKit
Push To Talk
Can I using AudioServicesPlaySystemSound for play sound os system on NotificationService?
Hello Team,
We are working on a requirement where the business wants to track the delivery of push notifications on iOS devices. Specifically, they want to capture the moment when the device receives the notification and it appears as a badge in the Notification Center—regardless of whether the app is in the background or not—and then send that delivery status back to APNs.
We have explored multiple approaches, but so far, we are only able to capture events when the user interacts with the notification banner.
We would like to understand:
Is it technically possible to send an event to APNs or another service upon receipt of the notification on the device without requiring user interaction?
Any guidance or recommendations would be greatly appreciated.
I am currently implementing VoIP push notifications in my iOS app using PushKit. On iOS 18, I am able to receive VoIP notifications successfully when the app is in the foreground. However, when the app is in the background or in a terminated (kill) state, the notifications do not arrive.
In earlier iOS versions, my existing implementation worked as expected across all app states. This issue seems to have started after testing on iOS 18, which appears to have introduced stricter permission or background execution requirements.
Questions:
Has iOS 18 introduced new permission requirements or entitlements for VoIP push notifications?
Do I need to explicitly request a new type of user permission for VoIP notifications?
Are there additional background modes, Info.plist keys, or PushKit changes required for VoIP to work in background and terminated states on iOS 18?
Additional Information:
. Foreground: Works fine, pushRegistry(_:didReceiveIncomingPushWith:for:completion:) is triggered.
. Background/Terminated: No call to the above delegate method.
. Using correct voip push type in the payload.
. PushKit is configured in AppDelegate.
. Background modes for "Voice over IP" and "Background Processing" are enabled.
. Using a real device with iOS 18 for testing (not simulator).
Any guidance or updated documentation references for handling VoIP pushes in iOS 18 would be greatly appreciated.
Hello,
we have a problem with fake call on iPhone device for incoming calls.
When I leave the iPhone in idle state for 30, 40 seconds and dialed voip app number the iPhone rings and there is no problem.
When I leave it in idle for longer time one minute or two minutes I get "Call Failed to Connect" on iPhone's display and after this fake call I get second call with real calling number displays on iPhone.
This first fake call is triggered by wake up push notification type 'voip'.
If I switched off this wake up push notification type 'voip' and device's token has not expired yet I don't get fake call and iPhone's directly displays calling number.
But in this situation we need to use wake up push notification type 'voip' on during a certain time to keep the device's token in our database and continuing to receive calling number without fake call.
If we switched off the wake up push notification type 'voip' on certain time we need to activate again wake up push notification type 'voip' for incoming calls to wake up the iPhone.
And in this way every time on every incoming call the iPhone's will display first fake call "Call Failed to connect" and after that the call with Calling number.
How we can eliminate this fake call and use only one wake up push notification only for incoming calls not use second type wake up push on certain time?
Thank you,
I paste here our code for this:
public ApnClient(IOptions settings)
{
var httpHandler = new HttpClientHandler()
{
ClientCertificates = { new X509Certificate2(certificate.Export(X509ContentType.Pfx)) },
};
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls13;
this.httpClient = new HttpClient(httpHandler)
{
DefaultRequestVersion = HttpVersion.Version20,
DefaultVersionPolicy = HttpVersionPolicy.RequestVersionOrHigher,
BaseAddress = new Uri(settings.Value.ApnProdBaseUri),
DefaultRequestHeaders =
{
{
"apns-topic", ApnsTopic
},
},
};
}
public async Task<bool> WakeUpDevice(string deviceToken, string callId)
{
this.requestContent = new StringContent(
$"{{\"aps\":{{\"content-available\":\"1\"}}}}",
System.Text.Encoding.UTF8,
"application/json");
var res = await this.httpClient.PostAsync($"/3/device/{deviceToken}", this.requestContent);
return res.IsSuccessStatusCode;
}
I am trying to retrieve delivered notifications using UNUserNotificationCenter.getDeliveredNotifications(completionHandler:), but I have encountered an issue:
Notifications triggered by UNTimeIntervalNotificationTrigger or UNCalendarNotificationTrigger appear in the delivered list.
However, notifications triggered by UNLocationNotificationTrigger do not appear in the list.
Here is the code I use to fetch delivered notifications:
UNUserNotificationCenter.current().getDeliveredNotifications { notifications in
for notification in notifications {
print("Received notification: \(notification.request.identifier)")
}
}
The notification is scheduled as follows:
let center = UNUserNotificationCenter.current()
let content = UNMutableNotificationContent()
content.title = "Test Notification"
content.body = "This is a location-based notification."
content.sound = .default
let coordinate = CLLocationCoordinate2D(latitude: 37.7749, longitude: -122.4194) // Example coordinates
let region = CLCircularRegion(center: coordinate, radius: 100, identifier: "TestRegion")
region.notifyOnEntry = true
region.notifyOnExit = false
let trigger = UNLocationNotificationTrigger(region: region, repeats: false)
let request = UNNotificationRequest(identifier: "LocationTest", content: content, trigger: trigger)
center.add(request) { error in
if let error = error {
print("Error adding notification: \(error.localizedDescription)")
}
}
Why does getDeliveredNotifications not return notifications that were triggered using UNLocationNotificationTrigger?
How can I retrieve such notifications after they have been delivered?
Hello all 👋
We're developing an app for families with neurodivergent members (primarily autistic children) and have run into a critical reliability issue with silent push notifications that breaks core functionality.
Our current implementation:
When a caretaker updates the person's daily routine/schedule in our system, we send a silent push notification to the user's device. The app wakes, connects to our server, downloads the updated schedule, and creates/updates local notifications for upcoming activities.
The problem:
Because the app is rarely/never directly interacted with by the end user (the child doesn't open the app - caregivers configure it on their behalf), silent push notifications get progressively throttled and eventually stop being delivered entirely. This means schedule changes made by caregivers never reach the device, breaking the app's core value proposition. Uninstalling and reinstalling doesn't reset the throttling state
Questions:
Is there any way to reset or mitigate throttling for devices that legitimately need background updates but have low or no user interaction? This is an accessibility use case where the end user (child) doesn't interact with the app, but the app must reliably receive updates. Would switching to regular (visible) push notifications avoid this throttling even if the app is not interacted with?
We already have Critical Alerts entitlement, but for regular updates we're worried that the "CRITICAL ALERT" banner will be too upsetting for the child. Is there any exception process for accessibility apps to change the way Critical Alerts are presented?
For neurodivergent individuals, predictable routines are essential. When schedule updates don't reach their device, it can cause significant distress. This is a genuine accessibility need, not a "nice-to-have" feature.
Any guidance from Apple engineers or developers who've solved similar challenges would be greatly appreciated.
Thank you!
Topic:
App & System Services
SubTopic:
Notifications
Tags:
APNS
iOS
Accessibility
User Notifications
User is using my app, the goes to System Settings, and changes some of my App's settings (switches, text fields, etc).
Does the system send my app any kind of notification?
David
PS: I tried all kinds of searches on this and found nothing.
Topic:
App & System Services
SubTopic:
Notifications
We are developing an app that receives push notifications (via Firebase) from configured IoT devices. It is essential that when a specific type of notification is received, a sound is played continuously until the user interacts with the notification.
This behavior is crucial for alerting users to certain critical states of the IoT device.
We understand that Critical Alerts on iOS can bypass Do Not Disturb and silent mode. However, from our testing and available documentation, the sound from a Critical Alert seems to be limited to around 30 seconds.
Our question:
Is it possible on iOS to have a Critical Alert (or any other type of notification) continue playing sound until the user interacts with the notification or app? If so, could someone please point us to the appropriate documentation or APIs?
Thanks in advance for any guidance.
PLATFORM AND VERSION: iOS
Development environment: Other: .net MAUI with vscode
Run-time configuration: iOS 18.1.1
DESCRIPTION OF PROBLEM
APNS notifications of apns-push-type pushtotalk sometimes stop arriving after switching networks.
STEPS TO REPRODUCE
We have created a simple app which can be used to deminstrate this issue. When you launch the app it displays the APNS token which you can then use fromn the Apple Push Console to manually send it PTT push notifications.
https://github.com/trampster/PttPushNotificationIssue
On an iPhone SE (we havn't been able to reproduce on our iPhone 11)
Start the APP to register for the APNS push notifications
Turn off the WiFi wait for 5 seconds
Attempt a push to the app manually using the Push Notifications Console (this should fail, which is fine)
Turn on Cellular and wait for it to connect
Attempt to push to the app manually using the Push Notifications Console
-> This fails, and all attempts to send an pushtotalk push notifications fail until the we switch network again.
Send a push while offline before connecting to the new network seems to make it happen more often but hard to tell for sure.
The results of the failed push in the console look like this:
Delivery LogLast updated: 30/01/25, 16:45:06 GMT+13 Refresh
30 Jan 2025, 16:45:03.661 GMT+13
received by APNS Server
30 Jan 2025, 16:45:03.662 GMT+13
discarded as device was offline
The device is actually very much online.
Switching networks again oftern makes things come right. But it doesn't seem to come right by itself.
We can't respond to network changes and do anything as the whole point of using push-to-talk push notifications is to wake up the app when in the background to answer a call, this means we are not running and therefore cannot respond to network changes to try to work arround this issue.
An Application Group with Identifier 'group.com.aaa.aaa.onesignal' is not available. Please enter a different string.
How can I Fix this error? I need to add it in this format.
Topic:
App & System Services
SubTopic:
Notifications
The app will be wake up from killed status by silent notification or not?
This is a question for years, from my test. It will wake up.
Here the wake up means it will call the "didFinishLaunchingWithOptions" method. But we can not see the app in the "recent apps" list after switching home-screen up.
So any Apple dev can give me a detailed explain for this?
Hello,
We are currently facing a persistent issue where Apple Push Notifications (APNs) are no longer being delivered to devices. This is not an intermittent problem — push notifications have completely stopped working. We are using PushSharp.Apple (Version 4.0.10.0) to send the notifications.
Current Behavior (Failing):
Every notification request appears to be processed successfully from the server side.
However, the APNs client receives a 0-byte response, and the server closes the connection.
Devices do not receive the notifications at all.
Logs from Current (Failing) State:
APNS-Client[1]: Connected (Batch ID=1)
APNS-Client[1]: Sent Batch, waiting for possible response...
APNS-Client[1]: Received 0 bytes response...
APNS-Client[1]: Server Closed Connection...
APNS-Client[1]: Disconnected (Batch ID=1)
For Reference – Successful Log From Earlier (When Notifications Worked):
APNS-Client[1]: Connected (Batch ID=1)
APNS-Client[1]: Sent Batch, waiting for possible response...
APNS-Client[1]: Received -1 bytes response...
Push Notification Successfully Sent to Device
Any help, suggestions, or experience with similar issues would be greatly appreciated.
Thanks!!!
I've added a Notification Service Extension as a target to my React Native iOS app following Apple's official documentation. After completing all the setup steps as outlined in the documentation, the notification titles remain unchanged - notifications are arriving without any modifications, suggesting the extension isn't functioning properly.Testing Details:
Sending notifications via Apple Push Notification Console
Tested on iPhone 16 Pro Max (physical device)
Tested on iPhone 15 Pro simulator
Both show the same issue - no title modifications
The extension appears to not be executing at all.
Has anyone encountered similar issues with Notification Service Extensions in React Native projects, or can suggest troubleshooting steps to verify the extension is properly configured and running?
If an iOS application has a notification service extension which gets sent a push, but the user has not been prompted for notification authorization via requestAuthorization() then what is the expected behavior?
Will the push get delivered to the NSE but the resulting notification not displayed? Or will the push not get delivered at all to the NSE?
The APNs Feedback Service domain “feedback.push.apple.com” was deprecated on March 31, 2021, and became unavailable after August 2025 due to domain name resolution failures.
Will this feedback service become available again in the future?
Also, is it possible to use the APNs Feedback Service with a domain different from “feedback.push.apple.com”?