Push notification on Wave, when not connected to UCM


Good afternoon.
My question may sound strange, but I could not find anything on this topic in manuals and instructions.
We use UCM6302 and use corporate VPN to connect Wave to the system. And while ago when Wave is connected to the system, and the user receives a call, he could see the incoming call on the phone and on the smartphone with Wave even if the VPN was not connected. The user could not answer the call, but he could see who was calling him and if it was important, he would connect the VPN and call back. Now it doesn’t work like that, so I wanted to ask if it is possible to find out the technical principle of communication between UCM and Wave? Where the stream goes, through which servers the connection is made, etc.? Users want to use it, and it is necessary to understand how to do it, maybe our firewall does not let something through, for this we need to know the servers through which the push notification works.
Perhaps someone can help us in this matter :slight_smile: .


Dear user,

Thank you for using the Wave application! May I ask if you can reproduce this issue while the VPN is connected? You can try to reproduce this issue and export logs from your Wave application, and send them to us for troubleshooting. May I ask if you mean you cannot receive the call notification while the VPN has been setup or you cannot answer the call under that test scenario? Please kindly describe your test steps and Wave performances while the issue happens. Thanks for your testing!

Thank you!


Thanks for your time, but it even more stupid, the issue is resolved.
Notifications come, just the boss is set at iOS smartphone mode which does not show push notifications.
So you can leave everything as it is :slight_smile: it’s really very convenient, maybe it’s a bug, but convenient.

Just in case, if someone will check it out.
I’m using Wave on iOS, VPN ipsec, VPN connected, and connected to UCM.
Then, without leaving the Wave, the VPN is disconnect, and push notifications continue to arrive, of course, the call cannot be answered, or the message, but in the push notification you can see who called or what they wrote.
It is very convenient :slight_smile:

So the topic can be closed.


Dear user,

Thank you for your feedback! Let me know if you have any further questions about this app. Thanks for your testing!

Thank you!


What I can conclude from your description is that Apple’s Push Notification Service (APNs) sends notifications to iOS devices independently of VPN connections. As long as the device has internet, it can receive these notifications.


Dear user,

Thank you for all your feedback! It depends on whether the iOS device and Apple’s APNS server are connected or not. Please kindly let us know the pushing notification status of other apps under the VPN network environment. Thanks for your testing!

Thank you!


Thanks for your answer.
We know about the APNs, but I wonder where the APNs gets the information from, if the VPN is disabled, does the PBX send the information somewhere other than the Wave program?
I’ll try to do the same on an Android device and see what happens there.


Dear user,

Thank you for your feedback! This is progress of how information sent to the Wave app.

UCM -> Our Pushing Notification Server -> APNS -> Wave app

You may not need to try it on the Android app because it does not use APNS. You can try other applications under the same environment in the same device. Thanks!

Thank you!