Nowadays the new services strongly provided by the carriers are based on the technology of 3G and IP. VoIP（Voice over Internet Protocol）is a solution of voice and data integration based on IP. The various simpler and cheaper solution meet requirement of the consumer services. Besides, it decreases the carrier's operating costs. It implements a platform of making profits. Thus, all the carriers have put it forward into a breakthrough phase. SINOCO SPX-5130 supplies the carrier with a transitional platform to develop the VoIP services with its convenient SIP module.

                

As the picture shows, ITSP installs SPX5130 in various places. The capability can be increased through stack up, and intend the core softswtich system to different areas and thus top NGN services are afforded to the local customers.