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SOFT SWITCH New Era of Switch. Convergences Business, network and platform Business Dynamic Market, Technology platform and regulation Accelerating revenue.

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Presentasi berjudul: "SOFT SWITCH New Era of Switch. Convergences Business, network and platform Business Dynamic Market, Technology platform and regulation Accelerating revenue."— Transcript presentasi:

1 SOFT SWITCH New Era of Switch

2 Convergences Business, network and platform Business Dynamic Market, Technology platform and regulation Accelerating revenue resources expand market reduce churn improve margin strategic alliance Network Private & public network convergence Wireless & Wireline network convergence Platform Packet Switch and Circuit Convergence Convergence Network Private Public Wireless Wire Line Packet Circuit

3 Softswitch Replaces PSTN Timeline ComponentsComponents Time Legacy Network Converging Network Converged Network First Class 5 replacement softswitch Majority of voice traffic moves off Class 5 onto softswitch Class 4 replacement softswitches take hold Class 4 obsolete IP PBX introduced TDM PBX obsolete, replaced by SIP IP PBX or PC applications WiFi introduced Wireless replaces copper wires as primary means of access IP phones introduced IP phones sink in price; mass adoption IP phones ubiquitous Cell phones replaced by Wireless VOIP handsets Explosion of softswitch features and feature providers Residential broadband ubiquitous Most telephony is TDM Telephony is mixed TDM/VoIP All telephony is VOIP

4 TEKNOLOGI SOFTSWITCH SPECIFICATION

5 Definisi Jaringan berbasis softswitch adalah suatu sistem yang mencakup hal-hal yang berkaitan dengan sistem komunikasi masa depan (Next Generation Network - NGN) dengan mengembangkan standar yang terbuka untuk menciptakan suatu jaringan yang terintegrasi dengan kemampuan memadukan berbagai kemampuan layanan suara, data dan multimedia secara lebih efisien. Jaringan berbasis softswitch

6 Enables and accelerates the creation of new “converged” services Increases network flexibility and provides support for multiple applications from a single platform Simplifies infrastructure upgrades by unbundling and centralizing service features Provides carriers with choice, allowing them to build “best of breed” networks with multiple vendors’ products BENEFIT OF SOFTSWITCH SYSTEM

7 A Softswitch is a software-based entity that provides call control functionality. Keeps call state Provides services that change the call state Communicates with peer Call Control functions for the establishment and release of calls. Requests services from functions in the Service Control functional layer. Requests determination of, allocation of, and release of, resources from Bearer Control functions. Applies a set of policies and mechanisms to a set of (IP) transport resources to ensure that those resources are allocated sufficiently to enable QoS guarantees across its domain of control SOFTSWITCH

8 Definisi Softswitch, atau call agent (CA), atau Media Gateway Controller (MGC), adalah elemen utama jaringan NGN yang berfungsi untuk mengontrol semua sesi layanan dan komunikasi, dan mengatur interaksi elemen-elemen jaringan lain seperti: Media gateway Signaling gateway Operation Support System (OSS) Application/Feature servers SOFTSWITCH

9 SOFTSWITCH ARCHITECTUREApplication Server & Feature Server Signaling Gateway Trunk Gateway AccessGatewayAccessGatewayAccessGateway Access Gateway SoftswitchOSS AccessGateway PSTNNetwork SignalingNetwork Packet Backbone MPLS

10 SOFTSWITCH ARCHITECTURE Application Server adalah elemen jaringan yang menyediakan aplikasi tambahan di luar fitur teleponi yang membutuhkan server tersendiri, misalnya voice mail, prepaid call, fixed-SMS, dll. Feature Server adalah elemen jaringan yang berfungsi sebagai penyedia aplikasi fitur teleponi. Media Gateway adalah elemen jaringan yang berfungsi sebagai elemen transport untuk merutekan trafik dalam jaringan softswitch dan juga mengirim atau menerima trafik dari jaringan lain yang berbeda, seperti PSTN, PLMN dan jaringan akses pelanggan.

11 SOFTSWITCH ARCHITECTURE Signaling Gateway adalah elemen jaringan yang berfungsi sebagai interface pensinyalan dari jaringan sofswitch ke SS7 PSTN atau PLMN. Media Server adalah elemen jaringan berfungsi membantu Softswitch untuk melakukan pemprosesan panggilan yang terjadi pada media stream, seperti penyediaan dial-tone, sarana conference, announcement, dll. Operating Support System (OSS) adalah elemen jaringan yang berfungsi untuk mendukung operasi dan pemeliharaan jaringan, seperti manajemen jaringan, provisioning, billing, monitoring, statistik, dll.

12 SOFTSWITCH ARCHITECTURE Media akses adalah media yang digunakan oleh jaringan softswitch untuk menjangkau pelanggan. Media akses dapat menggunakan cable modem, leased circuit, V5.2, DSL, HFC, FTTH/FTTC dan radio access. Perangkat akses adalah perangkat yang digunakan di sisi pelanggan (CPE) untuk melakukan akses ke jaringan softswitch. Perangkat akses dapat berupa node berbasis paket IP, terminal analog, dan perangkat terpadu yang memiliki port analog dan data paket (IAD, MTA, dll).

13 Arsitektur Fungsi Softswitch

14 Softswitch Architecture The architectural definition of the planes allows for certain functions to be separated into a distributed physical architecture consisting of four layers: Call Control & Signaling Plane Services and Applications Plane, Transport Plane Management Plane. SOFTSWITCH

15 Call Control & Signaling Plane merupakan bagian jaringan yang berfungsi sebagai pengendali proses pembangunan dan pemutusan hubungan yang melibatkan elemen-elemen jaringan pada layer yang lain berdasarkan signaling message yang diterima dari Transport Plane. Elemen utama bidang ini adalah Softswitch (call agent atau Media Gateway Controler). Softswitch Architecture

16 Service/Application Plane merupakan bagian jaringan yang menyediakan dan mengeksekusi satu atau beberapa aplikasi layanan di dalam jaringan softswitch. Di dalam layer ini termasuk juga Application server dan Feature server. Service/Application Plane juga mengontrol Media Server yang memberikan fungsi seperti conference, IVR, tone processing, dll. Softswitch Architecture

17 Transport Plane merupakan bagian jaringan yang berfungsi sebagai media transport bagi semua message di jaringan, seperti: call signaling, call & media setup atau informasi voice atau datanya sendiri. Transport Plane dibagi dalam tiga domain, yaitu; IP Transport Domain, yaitu fungsi transport pada layer IP. Domain ini merupakan backbone IP yang dilengkapi dengan border gateway, mekanisme ruting dan QoS (Router, switches, dll), Interworking Domain (Trunk Gateway, Signaling Gateway), Non-IP Access Domain (Access Gateway (wireline, mobile), Integrated Access Device, Cable modem/MM Terminal Adaptor- MTA, dll). Softswitch Architecture

18 Manajemen Plane merupakan bagian jaringan yang berfungsi untuk memberikan fungsi-fungsi dari Operation System Support (OSS) yaitu; fungsi sistem operasi dan pemeliharaan jaringan, provisioning layanan dan pelanggan, network management serta sistem billing. Softswitch Architecture

19 Konfigurasi Jaringan

20 Jaringan softswitch dapat terbentuk dari elemen-elemen fungsi jaringan sebagai berikut: Softswitch (disebut juga dengan Call Agent (CA), Media Gateway Controller (MGC)), Feature Server, Application Server (AS), Media Gateway (MG), Signaling Gateway (SG), Media Server (MS), dan Operation Support System (OSS) Elemen-elemen di atas saling berinteraksi membentuk fungsi sistem jaringan softswitch dalam menyediakan layanan kepada pelanggan. Konfigurasi Jaringan

21 Feature Server adalah elemen jaringan yang berfungsi sebagai penyedia aplikasi fitur teleponi. Application Server adalah elemen jaringan yang menyediakan aplikasi tambahan di luar fitur teleponi yang membutuhkan server tersendiri, misalnya voice mail, prepaid call, fixed-SMS, voice VPN, dll. Media Gateway adalah elemen jaringan yang berfungsi sebagai elemen transport untuk merutekan trafik dalam jaringan softswitch dan juga mengirim atau menerima trafik dari jaringan lain yang berbeda, seperti PSTN, PLMN, dan jaringan akses pelanggan. Konfigurasi Jaringan

22 Signaling Gateway adalah elemen jaringan yang berfungsi sebagai interface pensinyalan dari jaringan sofswitch ke SS7 PSTN atau PLMN. Media Server adalah elemen jaringan berfungsi membantu Softswitch untuk mendukung layanan/aplikasi seperti messaging, audio dan video conferencing, music on hold, announcement, dll. Operating Support System (OSS) adalah elemen jaringan yang berfungsi untuk mendukung operasi dan pemeliharaan jaringan, seperti manajemen jaringan, provisioning, billing, monitoring, statistik, dll. Konfigurasi Jaringan

23 Media Gateway Controller Function (MGC) The function of a Media Gateway Controller (MGC) is to control Media Gateways and the Signaling Gateways. The MGC handles call setup and teardown, detection and processing of events, and gateway startup/shutdown by using configuration databases that track trunk groups and circuits within the trunk. It is known by different names, including Softswitch, Call Agent, or Call Controller. It is the responsibility of the Media Gateway Controller to maintain state of a call connection. Fungsi2 dari masing2 komponen Sistem Softswitch

24 Media Gateway Controller Function (MGC) MGC Characteristics: Maintains call state for every call on a media gateway Maintains transport states for transport interfaces on the MG Many MGC implementations have small SCs built-in. The common SC functionalities found in a MGC include: Communicating transport messages between two MGs, as well as with MGCP IP or H.248 phones or terminals Originating or terminating signaling messages from other MGCs and external networks Fungsi2 dari masing2 komponen Sistem Softswitch

25 Signaling Conversion Function (SC) The Signaling Conversion Function (SC) routes and manipulates signaling. The manipulation may be as simple as rewriting a destination Request-URI, as in a SIP Proxy. Conversely, the manipulation may be as complex as adapting a signaling message from one transport medium and message format to another, as in an SS7 Signaling Gateway. Note that the SS7 Signaling Gateway, after adapting the message, routes the message to the appropriate destination, whether it be a MGC, AS, or other device. Fungsi2 dari masing2 komponen Sistem Softswitch

26 Signaling Conversion Function (SC) SC Characteristics: Encapsulates and transports PSTN signaling protocols (e.g. SS7) using SIGTRAN to the MGC or another SC For mobile networks, encapsulates and transports PSTN/PLMN signaling protocols (e.g. ANSI-41 or GSM- MSP) using SIGTRAN to the MGC or another SC One SC can serve multiple clients (MGC, SC, or AS) In VoP networks, SIP Proxies provide routing translations of SIP messages by manipulating the destination addresses of a SIP message Fungsi2 dari masing2 komponen Sistem Softswitch

27 Media Gateway Function (MG) The MG interfaces the packet network with an access endpoint, network trunk, or a collection of endpoints or trunks. The MG transforms media from one transmission format to another, most often between circuit networks (PSTN) and packet networks (VoP) or between dissimilar packet networks (ATM and IP). MG Characteristics: Maintains a master/slave relationship with the MGC using device control protocols such as MGCP or H.248 Performs media processing functions such as media transcoding, echo cancellation, media packetization, jitter buffer management, packet loss compensation, etc. Performs media insertion functions such as call progress tone generation, DTMF generation, comfort noise generation, etc. Perform signaling and media event detection such as DTMF detection, on/offhook detection, voice activity detection, etc. Fungsi2 dari masing2 komponen Sistem Softswitch

28 Application Server Function (AS) The Application Server Function (AS) is the application execution entity. Its primary role is to provide the service logic and execution for one or more applications and/or services. AS Characteristics: Be the termination point for signaling for applications (e.g. voice mail or conference bridge) Performs logic for call features (e.g. find me/follow me or pre-paid calling card) Provide Web interfaces to offer converged real-time multimedia and Web applications Have an API for service creation (e.g., SIP Servlets, Parlay, JAIN) May have policy, billing and session log back-end interfaces May invoke another AS for additional services or to build complex, component-oriented applications Request services of an MGC to control external resources Request services of a MS to perform media manipulation Applicable protocols include SIP, LDAP, HTTP, CPL and XML Fungsi2 dari masing2 komponen Sistem Softswitch

29 Application Server Function (AS) Often the combination of the AS and the MGC provides enhanced call control services, such as network announcements, 3-way calling, call waiting and so on. Rather than connecting the AS and MGC with a protocol, vendors often use an API between the AS and MGC. When they are implemented in a single system, the AS is known as a “Feature Server.” Fungsi2 dari masing2 komponen Sistem Softswitch

30 Media Server Function (MS) The purpose of a Media Server is to provide the media processing in support of applications such as messaging, audio and video conferencing, branding of services, music-on-hold, etc. MS Characteristics: Supports multiple codecs and transcoding Supports control by multiple ASs or MGCs Supports multiple concurrent capabilities: digit detection, streaming of tones and announcements (any multimedia file), algorithmic tone generation, recording of multimedia streams, speech recognition, text-to-speech, media mixing Supports standard scripting languages such as VoiceXML or MSCML Performs under the control of an AS or MGC through a control protocol, with either tight coupling (resource control, e.g. MGCP) or loose coupling (server requests, e.g. SIP) Fungsi2 dari masing2 komponen Sistem Softswitch

31 Accounting Function (AF) The AFcollects call accounting information for billing purposes. AF characteristics: Produces details of each session for billing and planning purposes Provides session management and mobility management The AF is often combined with the SC for call authentication, authorization and accounting (AAA) purposes Fungsi2 dari masing2 komponen Sistem Softswitch

32 INTERFACE DAN PROTOCOL

33 Protocol Interface : Ethernet/Fast Eth Call Agent / MGC / Softswitch

34 Kapasitas Call Agent / MGC / Softswitch Softswitch harus mampu memenuhi kebutuhan kapasitas dalam suatu rentang kapasitas jaringan publik dan secara fleksibel dapat ditambah kapasitasnya sesuai kebutuhan. Kapasitas Softswitch dinyatakan di dalam BHCA.

35 MEDIA GATEWAY Dalam implementasinya Media Gateway dapat diwujudkan dalam 2 jenis perangkat, yaitu 1.Trunk Gateway (TGW) dan 2.Access Gateway (AGW). Kedua jenis perangkat tersebut dilengkapi dengan beberapa interface transmisi sesuai kebutuhan jaringan.

36 MEDIA GATEWAY 1.Trunk Gateway (TGW) Inteface

37 MEDIA GATEWAY 1.Trunk Gateway (TGW) Protocol

38 MEDIA GATEWAY 1.Trunk Gateway (TGW) CODEC Trunk Gateway mendukung jenis CODEC antara lain : G.711 G. 729 G. 723

39 MEDIA GATEWAY 2.Access Gateway (AGW) Interface

40 MEDIA GATEWAY 2.Access Gateway (AGW) Access Gateway harus mendukung interface kepada End User: Analog Telephony V. 5.2 IP Phone (H.323 Phone, SIP Phone) XDSL (IP Based) Ethernet/Fast Ethernet MTA (DOCSIS) dimana pemenuhannya tergantung dari kebutuhan implementasi

41 SIGNALING GATEWAY Interface dan Protocol Protocol : Sigtran

42 OSS OSS harus mendukung perbaikan kualitas layanan dan mempertinggi efisiensi operasi dengan memberikan fungsi-fungsi manajemen jaringan berikut; Fault management Configuration management Accounting management Performance management Security management.

43 Protocol

44 H.323 The protocol is considered by many to be complex and difficult to scale. H.323 version 2 became available in 1998 which allows for a fast start connect method whereby the voice channels are set-up during the call set-up stage which reduced the communication roundtrips to two. H.323 version 4 is now available. SIP This flexible and easy-to-use protocol is used for establishing sessions. It is transport-independent, but was first deployed in IP networks. Sessions range from multimedia conferencing to content services such as Internet telephone calls and multimedia distribution. SIP re-uses many of the constructs and concepts of internet protocols such as HTTP and Simple Mail Transfer Protocol (SMTP). Given its less complicated call set-up procedure, SIP is a simpler protocol than H.323 for call control. SIP-T SIP-T is standard SIP with a well-defined payload for transporting PSTN ISUP information. SIP-T enables the transparent interconnection of diverse Media Gateway Controllers in a VoP network to emulate a traditional Class 4 TDM network. Protocol

45 MGCP MGCP is a protocol for controlling media gateways from media gateway controllers. It is standardized in the ITU-T as recommendation J.162. The most common profile of MGCP is the NCS profile from PacketCable™. As a device control protocol, MGCP presupposes all call control processing occurs in the media gateway controller. H.248 H.248 is a protocol for controlling media gateways from media gateway controllers. It was a joint development of the IETF and the ITU-T. It was published as RFC3015 in the IETF and H.248 in the ITU-T. Development and evolution of the protocol continues in the ITU-T. The most current version of H.248 is recommendation H.248.1, also known as H.248v2. As a device control protocol, H.248 presupposes all call control processing occurs in the media gateway controller. Protocol

46 SIGTRAN SIGTRAN transports message-based PSTN Signaling System 7 (SS7) traffic over IP-based networks using various protocol components. Next Generation Network (NGN)

47 MEGACO/H.248+ SS7 / C7 / PTS / PRI Voice V5/GR-303 VoDSL Data ATM UNI SIP ATM or IP Backbone PSTN Tekelec 8000 GR-317, GR-394/444 (BICC) IP Phone Data 100BaseT/ GB Ethernet WAN VoIP Data 100BaseT/ GB Ethernet WAN VoIP Tekelec 3000 Data Cable Video PRI,PTS SIP 2G/3G/Wireless Access Application Servers IP Telephony (T-1000) Transaction Services Mobility Manager Multi-service Next Gen Switching


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