aforementioned whether a gsc for accessing a service application or a service application can become an object in this case a gsc within the telephony environment thus service applications can access gscs for performing service functions once built the functionality of each service application further can be accessed by another higher level service application 0027 fig2 is a schematic illustration of a jain compliant intelligent network configured in accordance with the inventive arrangements a jain compliant network configured in accordance with the inventive arrangements can include a protocol layer 201 a signaling layer 203 an application layer 205 and a service layer 207 the application layer 205 can host external third party applications 208 as well as service applications 330 typical third party applications 208 can suit mass market demand for services such as virtual private networks vpns inbound services and unified messaging external third party applications 208 also can include short lived and niche applications which can be deployed using un trusted application space deployment technologies such as database lookup interfaces downloadable mechanisms and the parlay api as are well known in the art the service layer 207 can include a slee server such as a jslee server 200 which can be configured for.