The best mobile app development platforms allow you to build feature-rich, attractively designed apps with little or no programming skills.
A push notification is an unprompted message that is delivered from a remote server and pushed to a mobile device. Technology giants Apple deliver their push notifications through Apple Push Notification Service (APNS). Conversely, Android utilise the Google Cloud Messaging (GCM) to deliver push notifications to android devices. Most Windows push notifications are received through the modernised WNS framework.雇佣Push Notification Developers
hi, I have ready app that receive firebase notification , however I need to add VOIP notification so even if the app is closed or in the background it should be walked to show up an alarm page when the notification sent from the server.