Patent ID: 8965325
Filing Date: 2015-02-24
Classification: H04M

Abstract:
1. A method comprising: receiving, by a server device, an emergency call a first user device, where a user of the first user device has enabled a feature that causes one or more calls, destined for the first user device, to be forwarded to a second user device or not to be forwarded to the first user device, wherein the emergency call is a Session Initiation Session (SIP) call; creating, by the server device and in response to the emergency call, an emergency session associated with the first user device, where the creating includes: receiving, by the server device, a second SIP call with identification data; identifying the first user device as a destination to which the second call is directed by accessing the data item, by matching the identification data to the device identifier; determining, by the server device, that the emergency session has not expired when an elapse time associated with the emergency session is less than the threshold; processing, by the server device, the second SIP call as a PSAP callback by sending a notification to an application server to disable the feature that causes one or more calls, destined for the first user device, to be forwarded to a second user device or not to be forwarded to the first user device; and forwarding, by the server device and to the first user device, the second call, as a return call from the PSAP server, based on the disabled feature.