Patent ID: 11956322
Assignee: VERIZON PATENT AND LICENSING INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, comprising:
receiving, by a network device and for an emergency call, a session initiation protocol (SIP) invite that includes:
a registered address of a user device that initiated the emergency call, and

network slice selection assistance information (NSSAI);
determining, by the network device and based on the NSSAI uniquely identifying a private network, that the user device is associated with the private network;
extracting, by the network device, the registered address of the user device from the SIP invite and based on the user device being associated with the private network; and
providing, by the network device, the registered address to another network device configured to determine a registered geographic location of the user device, based on the registered address, and to provide the registered geographic location to a public safety answering point associated with the emergency call.