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    • 2. 发明授权
    • Determining correct device VoLTE status for call routing
    • 确定呼叫路由的正确设备VoLTE状态
    • US09420554B1
    • 2016-08-16
    • US14641786
    • 2015-03-09
    • Verizon Patent and Licensing Inc.
    • Gaurav B. PatelGunjan ThakkarJeffrey R. EvansYi Jing
    • H04W60/00H04L29/06
    • H04W60/00H04L65/1006H04L65/1069H04L65/1073H04W8/18
    • A network node receives a registration message, where the registration message is associated with registering a user equipment (UE) with a call signaling network for sending or receiving calls. The network node receives a notification message from a call session control node in the call signaling network, where the notification message indicates whether the UE is currently provisioned to engage in calls via a Voice over Long Term Evolution (VoLTE) network. The network node causes calls to or from the UE to be routed via the VoLTE network if the notification message indicates that the UE is currently provisioned to engage in calls via the VoLTE network, and causes calls to or from the UE to be routed via a legacy network, that is different than the VoLTE network, if the notification message indicates that the UE is currently not provisioned to engage in calls via the VoLTE network.
    • 网络节点接收注册消息,其中注册消息与向用户设备(UE)注册用于发送或接收呼叫的呼叫信令网络相关联。 网络节点从呼叫信令网络中的呼叫会话控制节点接收通知消息,其中通知消息指示UE当前是否被配置为经由长期演进语音(VoLTE)网络进行呼叫。 如果通知消息指示UE当前被配置为经由VoLTE网络进行呼叫,则网络节点通过VoLTE网络来呼叫或从UE进行呼叫,并且使来自UE的呼叫经由 如果通知消息指示UE当前未被配置为经由VoLTE网络进行呼叫,那么与VoLTE网络不同的传统网络。