[BUG] VoIP Push Still Arrives After Unregistering Push Notifications

[SarawutSr]

Describe the Bug

I’m encountering an issue related to Azure Communication Services VoIP push notifications not being properly unregistered after signing out of a user. Below is the detailed scenario:

Steps to Reproduce
1. Device A: Logged in with user XX, received AcsId-1.
2. Device B: Logged in with the same user XX, also received AcsId-1.
3. Admin initiated a call to AcsId-1 → Both Device A and B received the call as expected.
4. The call was accepted on Device A, connected, and then disconnected normally.
5. On Device A:
• The user signed out.
• The application called:

                agent.unregisterPushNotification { (error) in
                          if (error == nil) {
                                   log("Unregister of push notification was successful")
                                   agent.dispose()
                          } else {
                          ... 
                          }
                }

•	Then, a new user ZZ signed in and received a new AcsId-2.

6.	Admin made another call to AcsId-1.

Expected Behavior
• Only Device B should receive the VoIP push for AcsId-1.
• Device A, now signed in as ZZ and unregistered from push, should not receive any push notification for AcsId-1.

Actual Behavior
• Both Device A and B received the VoIP push for AcsId-1.
• On Device A, the following logs were observed:

pushRegistry.didReceiveIncomingPushWith
pushRegistry.didReceiveIncomingPushWith.payload: <PKPushPayload: 0x12dca4660>
handleACSCall with payload: <PKPushPayload: 0x12dca4660>
VoIPManager.handleIncomingPush()
📥 Read from UserDefaults | Key: voip_token_azure_communication_service | Data size: 32 bytes
TelehealthCallKitObjectManager.createCXProvideConfiguration()
VoIPManager.handleIncomingPush() deviceVoipTokenData: Optional(32 bytes)
VoIPManager.handleIncomingPush() has CallAgent. Let it handle push normally.
VoIPManager.CallAgent handled incoming push normally.
❌ VoIPManager.handlePush error:
↳ domain: ACSCallingShared
↳ code: 228969904
↳ description: Failed
↳ userInfo: ["NSLocalizedDescription": Failed]
self.incomingCall: nil

Question

How can I fully stop or prevent VoIP pushes from being delivered to a device after the user signs out and unregisterPushNotification() is called?
OR
What steps can I take to fix or work around this problem?

To Reproduce
Just follow the step on above

Setup (please complete the following information):

• OS: iOS 18.4.1
• IDE : Xcode Version 16.2 (16C5032a)
• AzureCommunicationCalling: 2.15.1

** I use CallKit in SDK ***

[tjprescott]

@raosanat can you take a look?

[SarawutSr]

Are there any updates or progress on this?
I’d really appreciate any help or advice your team can provide.

[tjprescott]

@lucianopa-msft can you or @raosanat take a look at this issue?

[raosanat]

We will look in to the issue.