Patent ID: 8422487
Filing Date: 2013-04-16
Classification: G06Q,H04L,H04M,H04Q,H04W

Abstract:
1. A presence registration and routing node for providing presence information regarding an entity, the presence registration and routing node comprising: (a) an advanced database communications module for receiving a session initiation protocol (SIP)-formatted presence registration message for determining presence information for a first end user, the presence information indicating a communication medium for contacting the first end user using a text messaging protocol and the fact that the first end user is currently available to receive text messaging protocol messages via the communications medium, wherein the SIP-formatted presence registration message is generated in response to a location update message received from a sending mobile switching center (MSC) associated with the first end user registering in a particular service area; and (b) a presence server message processor operably associated with the advanced database communications module for forwarding the SIP-formatted presence registration message to a presence server for determining the presence information, wherein the presence server stores the presence information for the first end user, and subscription information indicating a second end user subscribed to automatically receive presence information regarding the first end user and sends a response to the SIP-formatted presence registration message to the second end user, thereby informing the second end user of the appropriate communications medium for contacting the first end user using text messaging protocol communications and whether the first end user is currently available to receive text messaging protocol messages via the communications medium.