Patent ID: 9219677
Filing Date: 2015-12-22
Classification: H04L,H04Q

Abstract:
1. A system for routing bearer independent call control (BICC) signaling messages and managing call instance code assignments, the system comprising: a BICC signaling router having a processing and a memory, the BICC signaling router including: a routing module for centralized routing BICC signaling messages between a plurality of BICC signaling nodes; a call instance code management module for centralized assignment of call instance codes for BICC signaling sessions routed through the BICC signaling router, wherein centralized assignment of call instance codes includes assigning call instance codes for BICC signaling sessions without bilateral agreement between endpoints, wherein the BICC signaling router assigns an available call instance code associated with a destination BICC signaling node in response to receiving a BICC signaling message from an originating BICC signaling node, wherein the originating BICC signaling node is unaware of the call instance code associated with the destination BICC signaling node when sending the BICC signaling message; and wherein, in response to receiving the BICC signaling message from the originating BICC signaling node, the routing module and the call instance code management module are configured to: determine the destination BICC signaling node for the BICC signaling message; select the available call instance code associated with the destination; insert the available call instance code in the BICC signaling message; route the BICC signaling message to the destination; maintain a mapping between the call instance code in the received BICC signaling message and the selected call instance code associated with the destination; and use the mapping to process subsequent signaling messages associated with the signaling session.