Design and evaluation of computer telephony services in a distributed processing environment

TINA (Telecommunications Information Networking Architecture) has been deve loped to support efficient operation of a wide range of complex services. T INA is effective in building advanced multimedia related services and provi des effective solutions for complex service control and management along wi th a high level of quality of services. However the benefits and effectiven ess of TINA for other types of services such as ordinary telephone services and facsimile messaging services are not clear. This paper clarifies how t o apply TINA to control and management of computer telephony (CT) services and ordinary telephony services. We designed and implemented CT services in a distributed processing environment (DPE), and in particular a click-to-d ial service, as a target for our study. We demonstrate the effectiveness of the design through qualitative and quantitative evaluation. The results of our study show that the distributed processing technique, based on compone nt concepts makes it easy to build and extend CT services, and also that TI NA service architecture is applicable to ordinary telephony and advanced CT services.