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Source publication
This overview discusses the technological and architectural evolution of the telco service delivery platforms in the last
decade. We argue that not only the telco business model but also the system environment contributed to the decrease in revenues
from added value services and continues to be threatened by the success of the OEMs and their AppSto...
Contexts in source publication
Context 1
... 2004, the mobile telco standardisation body 3GPP developed the IP Multi- media Subsystem (IMS), based on the service initiation protocol (SIP), and tried to integrate the Parlay service capabilities with the new defined SIP application servers in a new IMS service architecture (see Figure 1). ...
Context 2
... this point, the design, pushed by the huge 3GPP group, began to show weaknesses: whereas the Parlay capabilities were functionally isolated and di- vided into call control, presence, messaging, etc.), the SIP signalling mixed all these functionalities in one protocol: call control using the INVITE message, messaging using MESSAGE and presence using SUBSCRIBE (NOTIFY mes- sages (see Figure 1). ...
