Fixed the push notification issue of Linkus calls: Push notifications did not take effect when users received a new call.（All Yeastar PBXs）
Linkus is a VoIP Mobile Client coordinated with Yeastar PBXs that makes your Android mobile phone an office extension and links you and your colleagues and customers anywhere anytime. Make and receive calls through corporate phone network to slash call costs and enhance efficiency with consistent in-office experience.
