Patent ID: 7304986
Filing Date: 2007-12-04
Classification: H04J,H04L,H04M,H04Q

Abstract:
1. A distributed call control system configured to operate with a signaling transfer point to transfer voice over a packet based network, the system comprising: a centralized call processor server configured to perform call control functions and to convert common channel signaling received from the signaling transfer point into a plurality of packets, the centralized call processor server sending packetized call processing and control information to at least one access interworking function (A-IWF) device via the packet based network, each A-IWF device being configured to dynamically establish end-to-end connections to another A-IWF device, each A-IWF device accommodating digital subscriber line access, the centralized call processor server comprising a billing server configured to create and collect call detail records, and a feature server configured to perform call control functions, the feature server comprising a tone and announcement server configured to provide network tones and announcements.