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SI3000 Control Plane


Multi-Service Control Node Countless Services and Reliable Control A Move to IMS

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SI3000 MSCN: Solving the control plane challenge The role of the SI3000 MSCN The SI3000 MSCN in the network The SI3000 MSCN services

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The SI3000 Call Server Expanding the service portfolio Services portfolio

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The SI3000 Application Server Messaging services Call control solutions Web services Voice VAS (value-added services)

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The SI3000 Signaling and Media Gateway SI3000 SMG key features

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The SI3000 Management System Comprehensive network-management applications

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The SI3000 MSCN system architecture Software architecture Hardware Platforms


The road to the future


Advanced Telecommunications Computing Architecture Access Gateway Control Function Breakout Gateway Control Function Channel Associated Signaling Call Session Control Function Dual-Tone Multi Frequency Interrogating Call Server Control Function International Telecommunication Union Telecommunication Standardization Sector Interworking Function Media Gateway Control Function


Media Gateway Control Protocol Media Resource Function Controller Media Resource Function Processor Operations Support System Private Branch Exchange Proxy Call Session Control Function Serving Call Server Control Function Service Delivery Platform Signaling Gateway Function Trunk Media Gateway Function Voice Extensible Markup Language

Diversity. Flexibility - control for tomorrow.



SI3000 MSCN: Solving the control-plane challenge For the past 15 years the world of telecommunications has been facing a new type of challenge. The infrastructure and technologies originally designed to carry only telephony services have needed to evolve to cope with the expanding world of multimedia and data services. New multi-service networks have had to be built on top of the legacy equipment of the PSTN, and it has been essential for this transition to be both smooth and cost effective. This transformation is referred to as the migration to Next Generation Networks, or NGNs.

Carriers’ prospects for future growth With the transformation of traditional telephone PSTN services the carrier must focus on: - providing new, cost-effective services for a reinvented revenue stream, - preserving the existing services and regulative features with a new technology, - avoiding any degradation of the services or inconvenience to the end-user, - the possibility of functional scalability and capacity growth for newly deployed infrastructure. All these issues are an encouragement for a fixed-line voice-service provider to evolve existing voice nodes and other network elements.

The changes have to be seamless and gradual with no inconvenience to end-users in order to guarantee future benefits for the service provider. During the process of network transformation it is crucial the users receive the same services and the same user experience together with the possibility of new services and expiriences.

The right time and the right technology In an ideal situation the end-users would have the same user experience with the IP-based network as they had with the PSTN, although they will start to use new applications and services. Achieving such a situation is a challenging task, especially in suburban and rural areas where investments are very carefully chosen. The prediction of a telco’s future revenue structure suggests that telephony is losing importance as a stand-alone service and is becoming part of a broader communications service. Revenue tends to increase where the telcos are able to offer a full bundle of services - in addition to telephony this includes messaging and video communications. The deployment of new services is mandatory.

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Standalone components of the SI3000 MSCN: SI3000 Application Server (AS) for rapid service deployment; SI3000 Call Server (CS) for PSTN emulation and the new generation of SIP-based services; SI3000 Signaling and Media Gateway (SMG) for media and signaling mediation between the IP network and PSTN.

SI3000 MSCN: a solution that promises a lot With the SI3000 MSCN Iskratel addresses a broad segment of voice-based telcos’ transformations. Transformations are provided in terms of telcos’ different strategies, goals and capabilities, including the technology and market reality, standardization and regulative points of view. The SI3000 MSCN, a member of the SI3000 Control Plane family, represents a compact solution for call control, service provisioning and mediation between IP-based and PSTN networks. The SI3000 MSCN uses an open architecture and integrates multiple functional blocks within a single and compact control-plane product. Each functional block is usable as standalone component to provide interworking with third-party network elements. The functionalities of all the network elements are enhanced by open, standardized interfaces that enable them to fully integrate with the SI3000 MSAN access nodes. The product is supported by an integrated element and a network-wide management system, the SI3000 MNS.

Highlights of the SI3000 MSCN: it enables a wide range of telephony and multimedia features for residential and business customers;  it fills the gap between the existing PSTNs and IP-based network architectures;  it is a cost-optimized upgrade option for existing an TDM infrastructure and the replacement of network elements;  the opportunity to reinvent revenue sources and to strengthen its competitive advantages. 

SI3000 Control Plane


The role of the SI3000 MSCN The SI3000 MSCN is a communication and application server portfolio of telephony and converged IP telephony for service providers and enterprises that want to costeffectively migrate to packet-based networks.

The SI3000 MSCN is easily integrated into any fixedline operator’s network. It provides initial value as a revenue-generating, advanced, hosted VoIP platform and facilitates a carrier’s migration to IMS with its IMScompliant interfaces:

Future ready and legacy compatible The true power of IMS-oriented networking comes from the ability to create advanced, new services rapidly and the use of open standard interfaces. The minimized time-to-market for a new service gives the carrier the opportunity to open new revenue sources and to strengthen its competitive advantages.

- it is designed in such a way that the existing Call Server functionality acts as a part of the PSTN-emulation building block of the NGN/IMS architecture. - the SI3000 AS acts as a central service development and execution block, separating the business logic from the underlying network. - the SI3000 MSCN components are evolving into standard NGN/IMS entities.





The SI3000 MSCN opens the way to reducing OPEX (Operating Expenses) and introduces a new breed of advanced services for a potential source of additional revenue.


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The SI3000 MSCN enables the interconnection of advanced SIP application servers to the legacy network. This includes the deployment of: - the FMC (Fixed Mobile Convergence) solution, - advanced business services.

Simplifying communications with advanced converged services The SI3000 MSCN provides a quick and cost-effective path for improving the usefulness of telephony and multimedia services. The result is an increased ARPU (Average Revenue Per User) and profitability for fixed-line carriers by reducing communication costs, simplifying administration, and improving organizational efficiencies.

The SI3000 MSCN, as part of a triple-play solution, has two major roles: - the SI3000 CS performs call control for the voice part of the solution. In the case of Class-5 deployment of the Call Server the services within the Application Server provide third-party call control and offer the whole range of advanced IP voice services to local subscribers. - the SI3000 AS enables the deployment of advanced, converged services, i.e., the convergence of voice with IM (instant messaging), IPTV and UC (unified communication) with web technologies. This is best demonstrated with Iskratel’s SI3000 Web Communicator, which provides the end-user with an advanced unified communication experience. It introduces the call-control capability and the e-mail or instant-messaging capability to the IPTV services.

SI3000 Control Plane


The SI3000 MSCN as a Class-4 and Class-5 SSW With the introduction of the SI3000 MSCN the carrier quickly broadens the range of new, profitable subscriber services without the need to replace any existing equipment. It provides the maximum protection for previously installed infrastructure investments:



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- using the SI3000 MSCN, the carrier upgrades the existing Class-4 and Class-5 PSTN switching devices with additional NGN services and solutions. - the SI3000 MSCN allows deployment in a wide range of network topologies – distributed, centralized, hybrid and overlay networks. - every existing PSTN functionality, as well as special, geographically determined demands, is supported. - the MSCN suite also includes regulatory features – lawful interception (ETSI-LI/SORM), number portability and carrier pre-selection. - the SI3000 MSCN as a transit exchange performs the static and dynamic routing of the transit traffic between other TDM exchanges and other call servers.

Diversity. Flexibility - control for tomorrow.



The SI3000 MSCN

in the network


The SI3000 MSCN services The economics, threat and success of VoIP services have encouraged many service providers to accelerate their deployment. These VoIP services attracted users with their low prices for basic features. The answer to these challenges is to provide a service bundle like a multimedia VoIP service with rich features and a simple, easy-to-learn interface to use them. Residential customers are already attracted to VoIP services by competitively priced IP telephony bundles that include a variety of services, such as internet access, local telephony access, unlimited calling, voicemail, call waiting, and caller ID. With the increasing competition, service providers need to retain customers, and prevent their switch to internet-phone-service competitors. The social aspect of web-services usage will grow and this might boost traditional earning models, like talking on the phone and sending SMS messages. The behavior of customers is changing: the sharing of various content, such as pictures and video blogs, with friends and other people in the internet community has become increasingly common.

To reinvent a telco’s revenue stream firstly a cost-efficient platform has to be established. It demands an integrated, scalable, open-standard-based solution like the SI3000 MSCN. Additional CAPEX (Capital Expenses) reduction is achieved with the ease of administration, the ensured reliability and the efficient management of all the components.

Key Benefits Increased revenue opportunities – The SI3000 MSCN product offers a rapid and cost-effective expansion into new geographic markets and thus increases the carrier’s ROI (Return on Investment). The product delivers voice services to less demanding users and increases revenues with enhanced applications. Feature-richness – The SI3000 MSCN provides customers a wide range of telephony features, from basic dial tone to advanced integrated services to improve productivity, such as the Si3000 Web Communicator with integrated unified messaging, the softphone, voicemail, presence, event notification, and the self-provisioning interface. Customers, using a single provider, benefit from simplified support and billing, which means they switch providers less often.

SUPPORT FOR BUSINESS EFFICIENCY Mobile terminal Fixed telephone

MS Communicator


Office support Messaging support Mobile support

The SI3000 MSCN service portfolio


Business Efficiency – The SI3000 MSCN offers service providers VoIP solutions in subscriber-oriented feature packages that can be implemented in a wholesale or retail business model over a variety of user-access types. - Hosted Business – is a supplementary PBX functionality in the public network. It has no up-front cost and no need for internal or external PBX support. It combines several business groups across a public network into a wide-area business group to a rich set of high-end PBX features and applications. - Business trunking – integrates legacy telephony customers into the IP network by providing IP connectivity for legacy PBX systems and access to advanced VoIP services.

Benefits: hosted IP telephony eliminates the costs and complexity of routine moves, additions and changes for service providers;  these tasks are delegated to resellers or to the business customers themselves via a simple, secure browser interface;  business customers give employees control over some administrative functions, such as maintaining callscreening rules and follow-me details. 


The SI3000 Call Server The SI3000 Call Server (CS) plays a central role in communication solutions for next generation networks. It provides voice, data and multimedia services. Using various protocols, it controls the NGN elements and exercises service, call and connection control.

Expanding the service portfolio Digital exchange systems in the world of PSTN telephony already comprise a broad range of services offered to

SI3000 CS - Application Interface - Services Control - Call Control - Signaling Control - Media Control

users. To maintain network versatility and at the same time use the opportunity you need to offer additional profit-generating NGN services. The SI3000 CS functionality ensures the use of the system at the local-exchange level (Class 5) as well as at the transit exchange (Class 4) or a combination of both of these. The SI3000 MSCN provides the carrier with seamless interoperability, whether offering services in a mixed TDM–NGN environment or whether fully migrating from a TDM to an NGN solution.


Services portfolio

Abbreviated-dialing services

A rich set of SI3000 CS services combines services well known to residential subscribers with business services available in a hosted PBX solution. Services are grouped in service families that relate to the call scenarios they are supporting.

In addition to all the abbreviated dialing options offered by the terminal equipment (direct keys, directories and lists, etc.) lists of abbreviated numbers for speed dialing can also be created on the SI3000 CS.

Basic voice services

- call identification is used to increase accessibility in the case of an unanswered call, call control or distribution. - name-identification presentation for user-friendly callingline identification. - also represents the basis for malicious-call identification.

The SI3000 CS supports basic voice services supported by analogue and packet-based terminals on SIP, MGCP and H.248. These services include: Basic call control for: - Local calls, - Domestic and international calls, - Outgoing or incoming calls from mobile subscribers, - Maintenance calls, - Special service calls, emergency calls, call waiting, - Direct calls to PBX extensions, - Outgoing calls from PBX extensions.  Supplementary services,  Routing,  Charging services,  Protocol processing,  Media gateway control. 

BENEFITS OF LAYERED ARCHITECTURE: Revenue-driven network evolution  Smooth deployment of new services  Multi-vendor interoperability (IMS)  Future proof 

Number-identification services

Call-completion services During an active call the user receives an incoming-call indication: - the call-completion network service offers the caller the possibility to set a call-back request as soon as the called subscriber is available again. - the standard call-hold service enables switching between active calls. - distinctive ringing and music-on-hold for userfriendliness of communications.


Call-barring services

Call-offering services - Call forwarding – offers remote activation     as a follow-me service, or on a spur-of-the  moment decision as a call-deflection service. -      Group call – the selected groups can distribute incoming calls in a sequential or linear mode or by ringing the whole group. - Call transfer – the call-transfer services are executed as a blind transfer during the ringing or as the termination of a consultation call. -        Call-interception scenarios – for different reasons (e.g., non-existent numbers, moved numbers, user not present) incoming calls are terminated by the interception of a call or call-pick-up services.

Multiparty services -        Conference services - enabling voice connections between several users - the most frequently used is a three- party conference. - The meet-me conference - resembles a chat room, where people can chat online for a certain period of time. The users can join the conference by dialing a special conference number.

Inter-carrier connectivity -        traffic distribution is the routing of traffic among several carriers based on the incoming traffic volume. It enables the equalization of incoming and outgoing voice traffic between carriers. -        least-cost routing is adopted inside a SI3000 CS and provides a cost-efficient trade and exchange of voice traffic between telecom operators. It is based on temporary inter-carrier price information provided from external systems.

Charging services

Services for placing or receiving calls in compliance with various criteria. The basic outgoing-call barring is based on the dialed number. Some user groups are permitted to place calls to, e.g., local, city, inter-city, international or special numbers.

Teleworking services A logically logged user can be authorized to access services from any phone at any remote location – regardless of the type of connection, including POTS, mobile, etc.

Alarm and notification call services - simple alarm calls are used as reminders with   different frequencies: as single, daily periodic   (with repetition number) or on chosen days of the week. -        complex notification calls enable a more efficient response in the case of an emergency. They are used as wake-up calls, high-priority calls, alarm calls in the case of a catastrophe, etc.

Hosted PBX service Hosted PBX is a private-network service offered by a public service provider. Iskratel Hosted PBX services bring headquarters, branch offices, remote sites and telecommuters together into a single dial plan. Hosted PBX subscribers connected to different SI3000 MSCNs are included in a wide business group. Business groups can extend over a wide geographical area (this is known as wide-area Centrex) and their members have all the advantages offered to hosted PBX subscribers – private numbering, transparency of services on the network, and group internal charging.

- call-charging information is promptly delivered to subscribers on all port types. Integrated applications offer billing or cost supervision for an individual subscriber or a group of subscribers for a specified time period. - to prepaid users, the services are only available until the amount paid on the prepaid account has been used up (even during a call).

Call-offering services, Multiparty services, Inter-carrier connectivity, Charg


Regulatory services Lawful Interception – The Iskratel’s SI3000 products support ETSI-LI/SORM requirements to make it easy to apply the lawful interception of voice and other telecommunications services by local or distant network subscribers that are processed in call servers monitored by the ETSI-LI/SORM system. Number Portability – based on ITU-T standards and includes several different types of service: - service-provider portability – provides end-users with the possibility of keeping their existing telephone (E.164) number when moving to an alternative service provider. - location portability – provides the end-user with the existing E.164 number when moving to another geographic location within the existing service-provider network. - service portability – provides the end-user with the possibility of keeping their existing E.164 number when changing the type of telecommunications service (e.g., POTS into ISDN, GSM or IP).

Carrier pre-selection – Different carriers provide different types of services, for instance, local, national, international or value-added specialized services. To allow the subscribers of one carrier to reach the services of other carriers, new types of routing are implemented in the SI3000 MSCN solution: - static routing is based on an agreement between the subscriber and the local carrier about how subscribers’ originating calls will be routed (e.g., via which national or international operator) by the carrier. -        dynamic routing allows subscribers to select one of many alternative operators for each outgoing call separately with a dialing carrier access code (CAC). -     the combination of both principles is also available.

Services portfolio: Basic voice services, Number-identification services, Call-completion services,

ity, Charging services, Call-barring services, Alarm and notification call services, Teleworking services, Hosted PBX service


The SI3000 Application Server The SI3000 Application Server (AS) is the most important element of the service plane. It is designed on a flexible platform that allows its deployment for various valueadded services and provides application interfaces for third-party services.

Think big, but take small steps The SI3000 AS is an environment for efficient and timesaving ways of developing new services. The SI3000 AS is typically connected to the SI3000 CS and SI3000 SMG.

It allows the deployment and integration of a variety of services such as: - Messaging services, - Call-control solutions, - Web services, - Voice value-added services (VAS). The SI3000 AS separates the service logic from the network, allowing developers to use up-to-date information technologies to access the network capabilities using open standard interfaces. The SI3000 AS allows sequential growth of the system’s capacity. The initial setup can be later upgraded in order to match the growing demand for capacity or to support the introduction of new services or features.

SI3000 AS - Messaging Solutions - Call Control Solutions - IVR Services

SI3000 Control Plane


FLEXIBLE PLATFORM, BASED ON OPEN STANDARD INTERFACES, BRINGS VARIETY OF SERVICES TO ATTRACT NEW CUSTOMERS. Messaging services Notification server The notification server generates a large number of outgoing phone calls according to predefined calling patterns. It allows unlimited options when designing voice-interaction scenarios and provides an easy-to-use web interface for various service configurations and service-performance monitoring.

Benefits:       an automatic payment reminder ensures that subscribers are cost-effectively informed to settle a debt.       automatic advertising campaigns with the goal of informing customers about new products increases the possibility for new revenue opportunities.       in the case of a catastrophic situation in the area the automatic notification of residents and emergencysituation teams shortens the response time.       automatic periodic notification of managers in the case of regular-term business meetings increases business efficiency.

Voice mail The voice-mail system is the next-generation voice-messaging solution that:  allows users to record voice messages when they are unable to answer the call,  notify users about new messages,  offer a number of configurations and notification options,  allows access to voice messages from various e-mail browsers and other systems.

Call control solutions Number portability

Number portability enables customers to change their service provider whilst retaining their existing telephone number (E.164) without any additional charging. ITU-T defines three types of number portability: - Non-geographic number portability (NGNP), - Geographic number portability (GNP), - Service-provider portability (SPP). The SI3000 AS has the ability to control which number is ported and additionally forwards the call to the new destination.

Benefits:     cost-effective solution to fulfill regulatory demands.     eliminates the need to buy a large and expensive IN infrastructure.

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Notification server, Voice mail, Prepaid system, Number portability , The SI3000 Web Communicator , Convergent Voting

Web services The SI3000 Web Communicator The SI3000 Web Communicator is an advanced example of a converged communication solution for residents. It merges the three different aspects of our communications: internet, voice communication, and the IPTV world. It is deployed within the SI3000 AS in the form of a communicationclient application. The SI3000 Web Communicator:       offers universal access to communication services in various types of network, regardless of the type of existing terminal equipment (POTS, ISDN, VoIP, GSM, IPTV).      provides a single user interface for multiple types of communication, channels/media: telephony (call control), e-mail, voice mail, video mail, instant messaging (IM) and SMS.      i s implemented as a thin client application that employs Web 2.0 to enhance the user experience and performance.       allows the user to access the service from various internet browsers available within devices ranging from simple STBs (Set Top Boxes) to PDAs, smart phones or PCs.     s upports presence status and the availability of information to users, access to central directories and event-notification mechanisms.     provides an efficient self-provisioning interface, allowing the user to easily control various parameters of the services and to control personal information.

Convergent Voting Engine A popular and easy way to get an opinion from an audience: - over the public telephone network using voice, - using mobile terminals by sending messages, - using web portals with links that enable voting.

Benefits the SI3000 AS terminates calls to a (premium-rate number and keeps track of all the votes.  web-based voting requires a subscription to a service in order to guarantee security and protection against fraud.  statistics and reporting facilities for the customer and also for the subscriber.  allows an awarded call to select a random caller to be transferred live to the studio. 

Extra-tones The extra-tones allow subscribers to replace a standard RBT (Ring Back Tone) with another sound (tone, music, sound effects) from a predefined list of available sounds. The extra tones are adapted to the carrier’s technology, business and marketing needs. The carrier has several revenue streams available:  a wide range of management tools for the subscriber (Jukebox with third-party sound files, recording personal voice messages, RBT sound time, employment of a personal play list and more).  self-provisioning through web and voice portals (IVR Interactive Voice Response) to browse and select the ring-back tones.  attractive customer functionalities (outgoing RBTs, ringback autoresponse, enterprise and promo RBTs, music as a gift, etc.).

SI3000 Control Plane


nt Voting Engine, Extra-tones, Auto attendant, Digital recorder (DR)

Voice VAS (value-added services) Auto attendant The auto attendant is a speech-enabled IVR (Interactive Voice Response) service that replaces the human operator. It automatically directs callers to the appropriate extension (department or individual) according to the speech or DTMF input of the caller.

Digital recorder (DR) The DR records voice connections on the user’s and/or authorized persons’ initiative, regardless of the connection type (POTS, ISDN, VoIP) and call-session type (E1/CAS, CCS, VoIP, analog trunks). DR provides full control over the recorded conversations.

Benefits no more notes during a telephone conversation. DR allows statistics and voice-data collection inside a telecommunications service node without additional digital-analog-digital signal conversions.  higher quality of recorded sound, full information about the dialed number, call phases and the DTMF input in the conversation phase.  no extra devices to record telephone conversations for security purposes. 

Benefits the callers receive consistent, professional treatment even when you are out or busy.  the customer saves the time, money and frustration of answering and directing calls.  Upload of professionally recorded messages or record custom auto-attendant greeting messages and change them at any time.  powerful, flexible, web-based control with personal or corporate-directory management functionality. 


The SI3000 Signaling and Media Gateway The SI3000 Signaling and Media Gateway (SMG) brings highly scalable and flexible PSTN-to-IP transport and signaling functionality to a VoIP network.

It includes three main voice functionalities: the media gateway, the signaling gateway and the media server.

SI3000 SMG - Media Gateway - Signaling Gateway - Media Server

This powerful combination provides a cost-effective solution for carriers, system integrators and application developers seeking to develop carrier-ready, scalable, IP-based enhanced services that can be accessed from both PSTNs and IP networks.



SI3000 SMG key features Media Gateway The media-gateway functionality ensures that the PSTN channel content is converted into a stream of data packets by using various VoIP codecs (e.g., G.711, G723.1, G.726, G729 and Clear Channel) and vice versa. Additional roles in the network: - Transcoding, compression and announcements, - Automatic fax and modem signal detection, - Echo cancellations (according to ITU-T G.168 recommendations), - Voice detection and silence suppression, - Comfort-noise generation (CNG), - Conference calling, - Tone detection/generation over TD (E1) and packet (Gigabit Ethernet) interfaces, - Quality of Service (QoS) built-in mechanisms (replacing lost VoIP packets (PLC), jitter buffer, elimination of variable delays, etc.) for toll-quality voice services.

Signaling gateway The signaling gateway provides the transformation of legacy TDM signaling (SSN7, DSS1 and V5.2) into IP-based session-control protocols (M2UA, M3UA, M2PA, IUA and V5UA) for communication with the call server. This eliminates the need for the operator to adopt the complex SSN7 signaling on the TDM side. In particular, the CAS signaling conversion to the IP network brings the carrier all the existing, well known capabilities.

Media Server The Media Server (MS) bundles the offer for the carrier with the following services: - it connects subscribers to a conference call, regardless of the network type (IP and TDM), - it enables DTMF detection and generation, - it provides voice announcements, interactive voice responses, speech recognition and voice messaging with the interpretation of VoiceXML scenarios (also in combination with Automated Speech Recognition (ASR) and Text to Speech (TTS) conversion servers). The media server performs the indicated functionalities independently of the mode of coding for the voice signal in a call.

Benefits viable means to “squeeze” additional IP revenues from the legacy network;  eliminates the need for a separate media server or application server for simple applications;  easy and cost-effective extension of IP-based services to legacy users;  integrated signaling and media-gateway functionality with a media server on a single carrier-grade platform. 


THE SI3000 MANAGEMENT SYSTEM The SI3000 Management System (MNS) is a visually unified, centralized supervision and management solution for the SI3000 MSCN. It supports the automation of service-delivery and service-assurance processes.

Comprehensive network-management applications The SI3000 MNS consists of a set of applications that are accessible from the top-level application, the Management Center: The Management Center is the entry point for operators to maintain and monitor the configuration and the status of managed network elements over management applications: - The Network Element Managers (NEMs), - The Fault Manager (FM), - The Performance Manager (PM). From a single (central) location, the operator is able to observe the inventory, manage the central security policy, update network topology data and perform other usual operations.

- The Network Element Managers (NEMs) support mass provisioning and service activation. Using the NEM, the operator supports the configuration, maintenance, provisioning, and service activation operations for every type of central office and remotely installed network elements. The provisioning is greatly simplified with a built-in AutoConfiguration Server (ACS). The ACS reduces OPEX. The automated processes require less time to install network elements, upgrade software, and replace network elements. - The Fault Manager (FM) is a dedicated alarm surveillance platform that enables hierarchically structured views of the managed network, including the graphical presentation of the statuses of the managed elements. The Fault Monitor provides a fully-featured alarm handling and different reporting mechanisms. -       The Performance Manager (PM) deals with the aspects of performance-data collection, analyses and presentation. It provides alerts for crossed thresholds set for particular performance variables, online statistics and history analyses. The application generates technical and executive reports, the mediation of quality-of-service measurements and trend analyses.

Benefits The product enables carriers to:  adequately control service-level agreements,  ensure the fulfillment of service-level agreements,  maintain customers’ satisfaction at the highest level. Rich with OSS functionalities  the SI3000 MNS offers a rich set of functionalities that covers all the major aspects of service assurance.  the SI3000 MNS proactively detects and helps resolve possible performance bottlenecks in aspects of network assurance.


A smart and comprehensive management solution Standardized integration via northbound and southbound interfaces The carrier is able to:  deploy Operational Support Systems (OSSs) for fault and inventory management, service provisioning and network assurance.  provide Business Support Systems (BSSs) for billing and customer care.  integrate third-party network elements through the southbound interface. Central management database  the operator has access to all the management functionalities without the need to know where the actual subscribers and other resources are physically located.  mass provisioning enables the operator to apply actions on multiple network elements. Multi-user management environment  the SI3000 MNS is a collaboration environment that protects the system against concurrent user access.  the user always gets up-to-date information, because of regular concurrent data synchronization.

Expandable system capacities  the flexible SI3000 MNS software offers the possibility for the carrier to choose between cost-effective HW platforms (e.g., installed on a notebook to manage a small network) and a distributed installation in a multiblade-server hardware architecture.  geographical redundancy is assured by using the cluster operation for a fault-tolerant management and monitoring solution.



The elements of the SI3000 MSCN – the Call Server, the Application Server and the Signaling and Media Gateway – provide scalability and adaptability to the operator’s existing infrastructure and business strategy.

SOFTWARE ARCHITECTURE The SI3000 MSCN is the result of an innovative system architecture design, which integrates single network entities and protocols in a common platform.

It is an ideal component for resolving the issues in today’s networks. It keeps the carrier in a strong position for future network evolution. Standards-based protocols between the building blocks ensure a future-proof evolution.



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Tune your performance and keep it robust The SI3000 MSCN allows the gradual replacement of the existing network element in a “pay-as-you-grow� manner. It helps the carrier to achieve maximum protection of the investment. The gradual growth in the number of subscribers results in the need to permanently expand the processing power. By distributing the traffic (trunks, subscribers) to several SI3000 CSs, the processing power of the whole solution increases significantly. Thus, it is possible to serve more traffic (subscribers/ trunks). The centrally managed SI3000 MSCN allows seamless capacity expansion from a single server to a multi-server configuration. Due to the multi-server architecture, the high availability of voice and other services is guaranteed in cases of potential disasters at the central call-control side.


The SI3000 MSCN includes three essential components: The SI3000 AS for rapid service deployment The SI3000 AS is a flexible application platform that allows the deployment of value-added services as well as acting as a gateway for third-party servers accessing the Call Server and Signaling Media Gateway features. The SI3000 AS interacts with the Call Server or Signaling Media Gateway through standard interfaces, such as VoiceXML, CSTA (Computer Supported Telephone Application) or INAP (Intelligent Network Application Protocol). Clients, external systems or third-party servers interact with the SI3000 AS through standard IT interfaces, including advanced technologies such as ParlayX. The SI3000 CS for a new generation of SIP-based services and PSTN emulation The SI3000 CS supports the following protocols: SIP, SIP-T, SIGTRAN (M3UA, M2UA, IUA and V5UA) MGCP and H.248. Standard support for SIP and SIP-T, enables connectivity for SIP-based applications and ensures an IMS-ready environment.

NGN protocols are crucial for the undisturbed execution of legacy subscriber services in cases when the carrier upgrades the network using replacements of obsolete equipment or PSTN exchange enhancements with call servers. The SI3000 SMG for media and signaling mediation between the IP network and the PSTN network The SI3000 SMG is a master on the network borders. This highly scalable product with a unique combination of technologies for media and signaling processing provides a signaling transfer point, a media server and gateway functions. The signaling transfer point provides connectivity for a wide range of existing installations on SSN7, ISDN, CAS and V5.2. It is controlled by the call server. In the role of a media server it provides the VoiceXML interpretation function and services such as tone generation, tone recognition, announcements and conferences for both types of networks, IP and TDM.



HARDWARE PLATFORMS The AdvancedTCA (ATCA) hardware platform is designed to fulfill the requirements of next-generation carrier-grade communications equipment. The SI3000 MSCN components, except for the SMG, run on an ATCA-compliant computer. SMG servers are inserted into the MEA platform at the high-end central-office or at any other location.


The ATCA-based SI3000 MSCN is convenient for high-end central-office locations and for service provision in densely populated urban areas. A single ATCA housing ensures the cost-effective installation of additional server blades in a single frame.

MEA is the ETSI standardized platform. The MEA platform is Iskratel’s cost-effective hardware-deployment option, designed for metro, suburban and rural networks. It is also suitable for installation at large enterprises. The blade concept of the SI3000 MSCN components allows the scalability of the NGN solution. It can be easily reconfigured from a compact architecture to a distributed architecture for larger configurations.



Multi server - ATCA




















32* / 63**



992** / 1953**



Number of HTTP sessions SMG

Single server - ATCA

Number of E1 links Number of VoIP channels

* Server with E1 interface ** Future release – Server with STM1 (Synchronous Transfer Mode no. 1) interface


The road to the future ily Famline

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No two carriers are likely to follow identical paths in establishing a pure IMS architecture. However, with the SI3000 MSCN, each carrier has the possibility to adopt a telecommunications infrastructure meet its current needs and its planned development strategy.


Service creation and utilization

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The existing infrastructure meets the new technology



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Network-element transformation – Regardless of the access part of the future IMS, the IMS core will evolve from the SI3000 MSCN product line. The


Packet-based (SIP) subscribers inherently use these services, but existing POTS and ISDN subscribers are insufficiently covered. The AGCF functionality provided by the SI3000 MSCN product line is the solution for this issue. The AGCF functionality hides all the specifics of the existing PSTN towards the IMS core. All the existing PSTN subscribers, based on the subscription option, are seen as packet-based (SIP) subscribers from the IMS core, and they are able to consume additional packet-based services.


The Evolution - The goal of the process is to achieve the adoption of the newly offered services by the end-users regardless of the installed access technology.


The migration towards IMS requires network-element adoption in the service delivery, core and access parts of the network.


Seamless migration towards IMS with the SI3000 MSCN


Iskratel’s approach to network evolution is based on the gradual migration of the existing PSTN infrastructure towards the IMS-oriented architecture. The migration scenario is suitable for existing telcos and for competitive newcomers, deploying fully IPenabled networks. Iskratel’s most important future role is to control and manage telecommunications and new web-based services from the fixed and mobile worlds through a single user profile at a single point.


Existing service support - Voice services - Self-provisioning - Video&Gameon-demand

Service creation and deployment

User-telco interaction

- Personalized advertising - Location-based services - Web 2.0 (communitygenerated content/ services) - Personalized content

- Single user profile - Single bill for bundle of services - Personalization of services (location aware)

flexible SI3000 CS is transforming to be able to provide the functions of P/I/S-CSCF, BGCF, IWF, MRFC and MGCF/AGCF network entities. The SI3000 SMG provides the following IMS functions - SGF, T-MGF and MRFP. The SI3000 AS (unified communicator – IMS client) is evolving into a pure IMS-compliant SDP. The desired goal – Finally, the “pure” IMS environment is going to give the carrier the opportunity to achieve its desired goals: a single environment for developing new services, to provide the subscriber with a single profile, managed by a single network element (HSS - Home Subscriber Server). The subscriber is going to have a single, location agnostic identity, and will receive a single bill for the whole bundle of services.

© Designed by Creatoor

Iskratel is a leading developer of customized and highly integrated communication solutions for quickly evolving convergent networks. Excellence in providing cutting-edge network elements and infrastructural configurations places the company among the global technological visionaries. By combining experience and know-how with creativity and innovation Iskratel meets the challenges of supporting the existing networks and establishing IP-based convergent architectures, adaptable to the demands of regional specifics and subscriber preferences.

Information in this document is subject to change without notice.

With over 1,100 employees and over 450 in affiliated companies in 20 countries, Iskratel offers integrated telecommunications solutions for fixed telephony, mobile telephony, IP-based convergent networks and network management. Iskratel’s presence in different countries ensures the full compatibility of our network solutions and makes certain that the SI3000 products conform to all international standards, including ETSI, DSL Forum, Metro Ethernet Forum and others.


Iskratel’s SI3000 brand portfolio consists of three main product families: - SI3000 Access Plane product family - SI3000 Control Plane product family - SI3000 Application Plane product family

Highlights of the SI3000 MSCN: - it enables a wide range of telephony and multimedia features for residential and business customers; - it fills the gap between the existing PSTNs and IP-based network architectures; - it is a cost-optimized upgrade option for existing an TDM infrastructure and the replacement of network elements; - the opportunity to reinvent revenue sources and to strengthen its competitive advantages.

Iskratel, d.o.o., Kranj Ljubljanska c. 24a, SI 4000 Kranj, Slovenia Phone: +386 (0)4 207 2000, Fax: +386 (0)4 207 2712 e-mail:

Iskratel Electronics, Ljubljanska cesta 24a, SI 4000 Kranj, Slovenia, phone: +386 (0)4 207 34 96, fax: +386 (0)4 207 29 91, e-mail:, Iskrateling, Ljubljanska cesta 24a, SI 4000 Kranj, Slovenia, phone: +386 (0)4 207 62 76, fax: +386 (0)4 207 62 77, e-mail:, Monis, Oktyabrskoy revolucii str. 99, UA – 61157 Harkov, Ukraine, phone: +380 577 15 80 00, fax: +380 577 15 80 16, e-mail:, Iskrauraltel, Komvuzovskaya str. 9a, 620137 Yekaterinburg, Russian Federation, phone: +7 343 210 69 51, fax: +7 343 341 52 40, e-mail:, Iskrabel, Harkovskaya str. 1/601, BY - 220073 Minsk, Belarus, phone: +375 17 213 03 36, fax: +375 17 251 74 59, e-mail: Iskracom, Naurizbay batyra 17, office 213, 050004 Almaty, Kazakhstan, phone: +7 327 2917 166, fax: +7 327 2917 166, e-mail: ITS Iskratel Skopje, Kej 13 Noemvri, Kula 4, 1000 Skopje, Macedonia, phone: +389 2 323 53 00, fax: +389 2 323 53 99, e-mail:,

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