Patent ID: 8243895
Filing Date: 2012-08-14
Classification: H04M

Abstract:
1. An Internet Protocol private branch exchange (IP-PBX) system for an enterprise comprising: a first interface to connect with an IP network; a second interface to physically connect with a shared line of the enterprise, the shared line being associated with a single telephone number or extension, the shared line being connected to a plurality of telephone devices, each of the telephone devices being associated with only a single user; one or more processors that control a connection between the IP network and one or more of the telephone devices on the shared line for an incoming call; a memory coupled to the one or more processors, the memory storing a listing of one or more callers or calling numbers designated as private to a user of a first telephone device of the plurality of telephone devices, the listing being configurable by the user; the one or more processors being operable to access the listing in the memory in response to the incoming call, and to send an alert to only the first telephone device in the event that the one or more callers or the calling numbers in the listing includes a caller or calling number associated with the incoming call, the one or more processors being further operable to cut off a media stream associated with the incoming call to all of the plurality of telephone devices on the shared line except the first telephone device.