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INTRODUCTION As Greg Patchell, General Manager Technology Strategy & Capability, Telecom Corporation of New Zealand Ltd, explains very well in his editorial on Service Delivery in this issue, the telecom industry is adopting a more sophisticated approach to services. With fierce competition at all levels, and with Internet technology providing a constant stream of disruption, Service Providers cannot risk committing the future of their business to a small number of “killer” services. Fixed and mobile broadband services are seen as a vast and growing area of opportunities for Service Providers to provide new services to subscribers in the domain of VoIP, Triple Play or enterprise collaboration tools. This issue will focus on key transformations implied by these opportunities in the services delivery architectures for consumer services. The next issue will develop equivalent trends for enterprise services. Service Providers develop new business and technical practices: they work in a stronger partnership mode with their vendors to take position in a new services domains. Beyond the Figure 1: Alcatel OSDE architecture End-User CPE IMS Client TV Client Streaming Client Video Player Mail Client MMS Client Hervé Amossé TRANSFORMING SERVICE DELIVERY ARCHITECTURES TO DEPLOY MULTIPLE AND MANAGEABLE SERVICES GUP/ HSS Softswitch Network Services OSS/BSS Integration SIP, ISC, LDAP, Diameter, HTTP INAP, CAP Parlay-X existing telecom application domains, the new ones typically include IMS for VoIP, and IP TV for Triple Play. Service Providers become better position to compete in their market place, offering to their subscribers attractive and innovative Internet-based services that they will sell as basic bundles, premium packages, and/on a pay-per-use basis. The targeted new service domains include innovative VoIP multimedia services; Fixed/Mobile convergent services; PSTN evolution and eventual replacement; and fixed and mobile entertainment services. Service Providers then face the double challenge of deploying, using and exploiting the value of the new service domains, at the same time as making them by design able to communicate and interact with one another, with existing telecom application and with external web-based applications, to attract the largest developers community. Within its User-Centric Broadband architecture, Alcatel has defined an Open Services Delivery Environment (OSDE) to enable such technological and business transformations. With the OSDE, Service Providers are given the means to: Open Service Delivery Environment Services Enablers End-User Services Provisioning/Activation Inventory, Alarm handling, QoS, Performance, traffic CDR handling Customer Self-mgt Service Fulfillment Service Assurance Billing 260 - Alcatel Telecommunications Review - 4 th Quarter 2005 www.alcatel.com/atr Presence GLMS Rating Server SIP, LDAP, Diameter, HTTP/SOAP Mobile Video SDP IPTV SDP IMS SDP IN SDP HTTP,Other SOAP/WSDL WS* Parlay-X WS Services Orchestration HTTP(S), SOAP/XML SNMP,FTP,SOAP/XML Ad-hoc, SOAP/XML Self-Mgt OSS BSS HTTP,Other SOAP/WSDL, WS* Any Application, Any Content
TRANSFORMING SERVICE DELIVERY ARCHITECTURES TO DEPLOY MULTIPLE AND MANAGEABLE SERVICES • Tailor services for each specific service domain (VoIP/IMS, IP-TV, mobile TV, PSTN/PLMN services), which users can personalize to match their own needs, as user-centricity becomes part of the broadband experience; • Enrich end-user service offers, combining and re-using features and innovations deployed in each of the above service infrastructures by SPs and their partners. The Alcatel OSDE uses a Service-Oriented Architecture (SOA) model to facilitate achieving the above market conditions. It structures components to deliver user-centric services in five categories, each exposing the most relevant abstraction to the others: network services; service enablers; end-user services; service orchestration; and OSS/BSS integration. The abstractions offered by each component are the sets of specialized and standardized interfaces and protocols to be used for communication between the different components, both within and between SDPs. Some of them are standardized in organizations like OMA, 3GPP, TISPAN, etc. Each service domain comes with its own development and execution environments, defining a Service Delivery Platform (SDP) spanning the above service enablers and end-user service categories. Coarse-grained interaction between the components of each SDP is made available through Web Services. Web Services provide a general exposure mechanism independent of each SDP execution environment. Exposed features are orchestrated either as composite application, or as BPEL scripts through the use of Orchestration tools. This will ultimately allow the agile deployment of a rich and flexible portfolio of services, of which the communications component, i.e. VoIP, will be key, as it will structure the user experience around presence, reachability, friends & colleagues list management, etc. Main components of the Alcatel OSDE are: • Network services (see Figure 1) is where most basic communications services are deployed, such as subscribers’ repository, softswitches, media servers, etc., and where Quality of Service (QoS) and security are controlled. They provide an end-to-end view of the required resources in real time, ensuring that service usage is controlled, that services do not compete for resources, and that user authentication is simple and rapid. Network abstraction is where the various network protocols are abstracted to other layers without losing network functionality. • Service enablers include functions like rating, presence, location, content delivery, and device management. Implementing a service enabler once, and re-using it across multiple layers and applications, can achieve significant cost savings. Enduser services, other enablers, and applications beyond standard service exposure use these enablers via specific protocols or Web Services APIs. • The end-user services area is where the applications that support user-centric services are deployed. All kinds of applications can be envisaged, depending on the scope of the OSDE deployment. Typically, applications deployed within this function are high-traffic, high-penetration services, with configurable features that address specific market segments or corporations: voice VPNs, mobile redirect, 800/900 numbers, instant messaging, push-to-talk, mobile video streaming, video on demand, TV broadcast, and so on. • Service orchestration is the set of Web Services interfaces used by engineers, and scripting tools used by non-engineers, to deliver additional services by combining various SDP features in a fast and efficient way. Partners can therefore exploit the SP’s services offering with secured access and SLAs. These interfaces are simple, providing well-defined functionalities and abstraction capabilities to developers and non-developers with limited or no knowledge of the telecoms domain. • OSS/BSS integration is the link between the OSDE and the OSS/BSS layer. Each service, enabler, and SDP execution platform exposes interfaces towards the OSS/BSS integration function for self-provisioning and management, alarms, provisioning, event records, configuration, command logging, etc. The integration layer significantly reduces the cost of introducing new services and new components in the SDPs. Web Services-based mechanisms are also used to integrate with the latest OSS/BSS systems. This issue of Alcatel Telecommunications Review presents the key aspects of Alcatel’s OSDE and shows it at work in various conditions. We start with three key components of the Alcatel OSDE: the Alcatel rating server and its use within the Bell Canada network; the Web Services orchestration layer; and OSS/BSS integration, notably in the context of introducing SOA architectures. Later we describe the OSDE at work in the deployment of Fixed/Mobile Convergence services, via a customer case: the BT Communicator service. With the growing importance of IMS/VoIP solutions for Service Providers, we then explore IMS in depth, from both the network and applications perspective. France Telecom gives us its first conclusions about its innovative IMS services, jointly developed with Alcatel. Finally, we look at further Triple Play offers, focusing on Video Services platforms for both fixed and mobile networks. In particular, Orange tells us more about its mobile video services. In the Alcatel OSDE, each network service, service enabler, and end-user service is a re-usable component that can be consumed directly, or with orchestration scripts, through an open technology approach based on a powerful SOA paradigm. As a result, it enables the rapid development and deployment of multiple services in the domains of Triple Play, Fixed/Mobile Convergence, and Managed Communications, while taking into account three key elements: the user-centric experience; differentiation; and operational excellence. Hervé Amossé Alcatel Applications Strategy Director www.alcatel.com/atr 4 th Quarter 2005 - Alcatel Telecommunications Review - 261
Page 1 and 2: 4 PICK AND MIX TO DEVELOP YOUR SERV
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REACHABILITY AND CONTEXT ENABLERS F
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PRESENCEN AND LOCALIZATION DATA ENA
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TECHNOLOGY WHITE PAPER A. Lemke, G.
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TRIPLE PLAY: DON’T PLAY! MAKE IT
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TRIPLE PLAY: DON’T PLAY! MAKE IT
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INGREDIENTS, UTENSILS AND RECIPES F
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RICH MEDIA SERVICE DELIVERY From th
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EDITORIAL OFFICES ENGLISH EDITION C
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