Patent ID: 9667430
Date: 2017-05-30
CPC Classifications: G06Q,H04L

Claim:
1. A system for providing offline charging and processing of a plurality of Session Initiation Protocol (SIP) communication sessions in a telecommunications network, said system comprising: a network layer in the telecommunications network comprising a stateless tier and a stateful tier; a charging data function (CDF) server in the telecommunications network external to the network layer; said stateless tier of the network layer comprising a plurality of stateless server nodes; said stateful tier of the network layer comprising an n-way peer-replicated Random Access Memory (RAM) store accessible from the stateless tier; a plurality of SIP server application instances operating on said plurality of stateless server nodes in the stateless tier of the network layer, wherein the plurality of SIP server application instances process SIP communications for said plurality of SIP communication sessions; an offline charging application operating on one of said plurality of stateless server nodes in the stateless tier of the network layer, wherein the offline charging application communicates with the plurality of SIP server application instances; wherein for each SIP communication session of said plurality of SIP communication sessions,