Service creation environment
Telephony providers offer a range of services including point-to-point communication, conference calls, voice mail, call forwarding and help desk facilities. These services are combined together to create new services. The example below depicts a DSM language for describing IP telephony services using flow models and generating service description in XML. A service engineer draws models like above to define different telephony services, and then the generator produces the required service descriptions in XML for execution in a telephony server.