公开(公告)号：US20250150804A1

公开(公告)日：2025-05-08

申请号：US18500731

申请日：2023-11-02

Applicant: Verizon Patent and Licensing Inc.

Inventor： John Cao Vinh NGUYEN ,  Bibi M. HAKIMZADEH ,  Toby Varughese JOHN ,  Danysel BARTHELME

IPC: H04W8/08

Abstract: In some implementations, a call session control function (CSCF) may identify information associated with a user equipment (UE). The CSCF may determine, based on the information, whether the UE is roaming in a circuit switched mobility network. The CSCF may transmit signaling associated with delivering a call to the UE, wherein the signaling bypasses a service continuity gateway (SCG) on a call delivery path when the UE is not roaming in the circuit switched mobility network and the signaling traverses the SCG on the call delivery path when the UE is roaming in the circuit switched mobility network.

公开(公告)号：US20250141950A1

公开(公告)日：2025-05-01

申请号：US18497365

申请日：2023-10-30

Applicant: Verizon Patent and Licensing Inc.

Inventor： Toby Varughese JOHN ,  Jayshree A. BHARATIA ,  James S. ABRAHAM ,  Bibi M. HAKIMZADEH

IPC: H04L65/80 ,  H04L65/1016 ,  H04L65/1096

Abstract: In some implementations, an Internet Protocol multimedia subsystem (IMS) entity may receive, from a home subscriber service (HSS) or a unified data management (UDM), an identifier associated with a government emergency telecommunications service (GETS) subscription, wherein the identifier includes a selection prefix. The IMS entity may identify that a call is associated with GETS based on the identifier. The IMS identifier may transmit, to a network node, an indication that the call is associated with GETS.