Abstract: An access control system includes a plurality of sensors and an access controller that includes one or more processors. The sensors detect sensor data regarding a user. The one or more processors receive credential data regarding the user from at least one of an access control device and an electronic wallet, evaluate a medical status using at least one of the sensor data and the credential data, validate access into a space responsive to the medical status being satisfied, and update a record data structure of at least one of the electronic wallet and a distributed ledger using the evaluation of the medical status.

Abstract: Methods and systems for measurement-based call admission control in a media gateway are disclosed. A request for establishing a new voice-over-IP (VoIP) call for sending and receiving voice over IP packets in a media gateway is received. The request indicates a required bandwidth for the new call. Bandwidth utilization of at least one Internet protocol (IP) network interface for sending and receiving voice over IP packets in the media gateway is determined. The media gateway determines whether to admit the new VoIP call based on the determined requested bandwidth for the new call and the determined bandwidth utilization for at least one of the IP network interfaces.