Diameter Stack - a 3G partnership Project (3GPP) standards-compliant, Carrier-grade signaling product from Aricent offers OEMs and vendors building IMS network elements and Charging Gateways scalability, reliability, and high performance. It reduces the application development cycle through a comprehensive set of easy-to-use Application Programming Interface (APIs). The Aricent Diameter Stack provides developers with a pre-integrated management set of interfaces and enables them to focus on their forte - developing applications. Using the Stack, developers can cater to well-known application extensions, such as Sh, Cx, Dx, Rf, Ro, and CCA, and can also be easily and rapidly extended to support new application extensions through its data dictionary.

The latest report from Venture Development Corporation (VDC) -Telecom Core Infrastructure Market Intelligence Service 2005-2006 Volume IV: VoP Network Elements (July 2006) - adjudges Aricent having the largest market share in SIP. The new Diameter Stack consummates Aricent's IMS portfolio.