发明授权
US08160559B2 System and method for managing mobile-terminated (MT) calls in IMS network environment using alternative signaling 有权
使用替代信令在IMS网络环境中管理移动终端(MT)呼叫的系统和方法

System and method for managing mobile-terminated (MT) calls in IMS network environment using alternative signaling
摘要:
In one embodiment, a scheme is disclosed for managing delivery of a Mobile-Terminated (MT) call via an IMS network, wherein the MT call is originated by a calling party towards a User Equipment (UE) device that is CS-attached. An IMS-capable network node is operable to associate the received call information with an IP Multimedia Routing Number (IMRN) and provide the call information and the IMRN via alternative signaling (e.g., USSD or SMS messaging) to the UE device. A Mobile-Originated (MO) call process is initiated by the UE device using the received IMRN as the destination number, which terminates at the network node. Upon verifying that the returned IMRN is valid, the network node bridges the access and remote legs to establish the end-to-end path for the MT call between the UE device and the calling party.
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