The SPIRITS Architecture

Abstract

The SPIRITS Architecture Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

A Parlay and SPIRITS-based architecture for service mediation

“…The protocol of choice to support the SPIRITS architecture is SIP [10,6]. SIP is a very flexible protocol; the SIP world is wide open.…”

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IntroductionServices in the PSTN/IN Requesting InTernet Services (SPIRITS) [10] is an Internet Engineering Task Force (IETF) working group focused on providing infrastructure, architecture, and protocol support to enable entities providing services in the PSTN/IN network such as service control points (SCPs) to request that service-related processing be carried out at Internet protocol (IP) endpoints.

SPIRITSThe SPIRITS architecture makes it possible for third-party application providers to deliver turnkey application add-ons to the traditional PSTN/IN services and transport by bridging existing legacy networks and the new and emerging IP-based service networks. The SPIRITS server typically is provided with the control of a call based on the intelligent networking (IN) triggers defined in the PSTN/IN network and, as such, is enabled to provide enhanced application logic above and beyond legacy telephony calling services provided by an SCP.

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Session initiation protocol services architecture

“…The PSTN/IN requesting system is realized by a SPIRITS gateway, which serves as an intermediary between the SPIRITS server and the SPIRITS client. The overall SPIRITS architecture is depicted in Figure 3 [24]. Figure 3 includes many other entities in the SPIRITS architecture, besides the three mentioned above.…”