High performance platform for multiple OpenAPIs

The amount of network traffic, especially data traffic, has grown rapidly in recent years. For data traffic, connectionless network is more suitable than connection-oriented network. Voice over IP (VoIP) technologies are becoming practical. Call agents are being developed for the next generation network, called NGN-CA. They control various network elements and provide VoIP telephony services and multimedia services. NGN-CA provides OpenAPI, which is standalized application programmer interface to control various network elements. Although various applications using OpenAPI are written, ordinary call agent supports only one OpenAPI because there is difference among call models of OpenAPIs. A call model has been proposed combining multiple OpenAPIs, especially JAIN CC and Parlay MPCCS and a high performance implementation supporting multiple OpenAPIs by using the combined call model. Various applications written in different OpenAPIs can be installed on the implementation and these applications can provide services on a call simultaneously.