Abstract: Systems, methods, and non-transitory computer readable media can obtain a first event stream including one or more events of a first type, where each event of the first type is associated with a timestamp. A second event stream including one or more events of a second type can be obtained, where each event of the second type is associated with a timestamp. The first event stream and the second event stream can be merged to generate information associated with a metric relating to a system, based on the timestamps associated with the one or more events of the first type and the timestamps associated with the one or more events of the second type.

Abstract: Systems, methods, and non-transitory computer readable media can obtain a first event stream including one or more events of a first type, where each event of the first type is associated with a timestamp. A second event stream including one or more events of a second type can be obtained, where each event of the second type is associated with a timestamp. The first event stream and the second event stream can be merged to generate information associated with a metric relating to a system, based on the timestamps associated with the one or more events of the first type and the timestamps associated with the one or more events of the second type.

Abstract: Aspects of deferred domain selection in a mobile communications network are described. In one embodiment, a user equipment (UE) device initiates an attachment procedure with at least one radio access technology network. Then, when originating a voice call, the UE device determines whether the UE device is registered for internet protocol multimedia subsystem (IMS) services. When the UE device is not yet registered for IMS services, the UE device defers domain selection for the voice call. In certain aspects, while the UE device defers domain selection for the voice call, the UE device evaluates a set of IMS registration tendency factors for at least a predetermined timeout period. The IMS registration tendency factors may include an indicator of whether IMS registration is ongoing, an indicator of whether the UE device was successful in prior IMS registration requests, or a user's network preference setting in the UE device.