CPC H04L 63/1458 (2013.01) [H04L 63/0209 (2013.01); H04L 63/0236 (2013.01); H04L 63/0272 (2013.01); H04L 63/1425 (2013.01); H04L 65/1069 (2013.01)] | 20 Claims |
1. A method of maintaining access for User Equipment (UE) to a service provided by a communications service provider, wherein an Internet Protocol (IP) server in a perimeter network delivers the service over a public IP network to the UE, the method comprising the perimeter network:
establishing a connection between the IP server and the communications service provider prior to detecting irregularities in IP traffic arriving at the perimeter network over the public IP network, the communications service provider being subscribed to a controlled secure access service via the IP server in the perimeter network; and
enabling the connection responsive to detecting an irregularity in the IP traffic arriving at the perimeter network over the public IP network.
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