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SOFT SWITCH New Era of Switch

SOFT SWITCH New Era of Switch. Private. Packet. Convergence Network. Public. Circuit. Wireless. Wire Line. Convergences Business, network and platform. Business Dynamic Market, Technology platform and regulation Accelerating revenue resources expand market reduce churn

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SOFT SWITCH New Era of Switch

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  1. SOFT SWITCH New Era of Switch

  2. Private Packet Convergence Network Public Circuit Wireless Wire Line ConvergencesBusiness, 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

  3. Softswitch Replaces PSTN Timeline C o m p o n e n t s Legacy Network Converging Network Converged Network Most telephony is TDM Telephony is mixed TDM/VoIP All telephony is VOIP Residential broadband ubiquitous Explosion of softswitch features and feature providers Cell phones replaced by Wireless VOIP handsets IP phones introduced IP phones sink in price; mass adoption IP phones ubiquitous WiFi introduced Wireless replaces copper wires as primary means of access IP PBX introduced TDM PBX obsolete, replaced by SIP IP PBX or PC applications Class 4 replacement softswitches take hold Class 4 obsolete First Class 5 replacement softswitch Majority of voice traffic moves off Class 5 onto softswitch 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 Time

  4. TEKNOLOGI SOFTSWITCH SPECIFICATION

  5. Jaringan berbasis softswitch • 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.

  6. BENEFIT OF SOFTSWITCH SYSTEM 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

  7. SOFTSWITCH • 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

  8. SOFTSWITCH • 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

  9. Application Server & Feature Server OSS Softswitch Signaling Gateway Signaling Network Packet Backbone MPLS Trunk Gateway PSTN Network Access Gateway Access Gateway Access Gateway Access Gateway Access Gateway SOFTSWITCH ARCHITECTURE

  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 • 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.

  15. Softswitch Architecture 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).

  16. Softswitch Architecture Service/Application Planemerupakan 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.

  17. Softswitch Architecture • 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).

  18. Softswitch Architecture Manajemen Planemerupakan 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.

  19. Konfigurasi Jaringan

  20. Konfigurasi Jaringan • 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.

  21. Konfigurasi Jaringan Feature Serveradalah 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.

  22. Konfigurasi Jaringan 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.

  23. Fungsi2 dari masing2 komponen Sistem Softswitch 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.

  24. Fungsi2 dari masing2 komponen Sistem Softswitch • 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

  25. Fungsi2 dari masing2 komponen Sistem Softswitch 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.

  26. Fungsi2 dari masing2 komponen Sistem Softswitch • 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

  27. Fungsi2 dari masing2 komponen Sistem Softswitch • 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.

  28. Fungsi2 dari masing2 komponen Sistem Softswitch • 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

  29. Fungsi2 dari masing2 komponen Sistem Softswitch 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.”

  30. Fungsi2 dari masing2 komponen Sistem Softswitch • 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)

  31. Fungsi2 dari masing2 komponen Sistem Softswitch • 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

  32. INTERFACE DAN PROTOCOL

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

  34. Call Agent / MGC / Softswitch • Kapasitas 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 • Trunk Gateway (TGW) dan • Access Gateway (AGW). • Kedua jenis perangkat tersebut dilengkapi dengan beberapa interface transmisi sesuai kebutuhan jaringan.

  36. MEDIA GATEWAY • Trunk Gateway (TGW) • Inteface

  37. MEDIA GATEWAY • Trunk Gateway (TGW) • Protocol

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

  39. MEDIA GATEWAY • Access Gateway (AGW) • Interface

  40. MEDIA GATEWAY • 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. Protocol 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.

  45. Protocol 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.

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

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

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