Patent ID: 11943836
Assignee: T-MOBILE USA, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. At least one computer-readable medium, excluding transitory signals, and carrying instructions, which when executed by a server in a wireless telecommunications network, implements a process comprising:
retrieving, by a proxy call session control function (P-CSCF), an address of an access and mobility management function (AMF) from a unified data management function (UDF),
wherein the proxy call session control function is configured to communicate with the unified data management function directly via a first service-based interface; and

retrieving, by the proxy call session control function, information about one or more events associated with a terminal device from the access and mobility management function using the address of the access and mobility management function,
wherein the proxy call session control function is configured to communicate with the access and mobility management function directly via a second service-based interface, and
wherein the second service-based interface differs from the first service-based interface.