5 february 2003 reality and future softswitch - reality and future nikolay ilyin chief technical...

5 February 2003 Softswitch - Reality and FutureReality and Future

Softswitch - Reality and FutureReality and FutureNikolay Ilyin

Chief Technical Officer

RealEast [email protected]

ITEXPO |Session: Focus on Softswitch|ITEXPO |Session: Focus on Softswitch|


Contents

Main stagesMain stages Problems Problems solved by solved by softswitchessoftswitches Proposed solutionsProposed solutions New tNew trendsrends


Softswitch Evolution –Main Stages

SIP/H323 converterSIP/H323 converter Class 5 platformsClass 5 platforms Distributed universal systemsDistributed universal systems


NAT/firewall, Security requirementsNAT/firewall, Security requirements Productivity/no bottlenecksProductivity/no bottlenecks Easy to introduce servicesEasy to introduce services Sophisticated billingSophisticated billing Total system control and monitoringTotal system control and monitoring

Problems to be solved


Problems - NAT/firewall,Security Requirements

Now most of the end-users are behind the Now most of the end-users are behind the firewall/NAT. That makes RTP traffic flow firewall/NAT. That makes RTP traffic flow provisioning more complicated.provisioning more complicated.

In some circumstances clients do not want to In some circumstances clients do not want to provide their identity to other users.provide their identity to other users.


Problems - Productivity/No Bottlenecks

The systems should be designed in such a way that The systems should be designed in such a way that do not have bottleneck point.do not have bottleneck point.

Softswitch’s capacity should be easily upgraded as Softswitch’s capacity should be easily upgraded as the business grows.the business grows.


Problems - Easy to Introduce Services

TELCOs/system integrators want to have an ability TELCOs/system integrators want to have an ability for the quick introduction of new Revenue for the quick introduction of new Revenue Generation Services.Generation Services.

New Service introduction should not require New Service introduction should not require changes in the many parts of the system, just few changes in the many parts of the system, just few slight changes acceptable. slight changes acceptable.


Problems –Sophisticated Billing

Billing requirements became more complicated.Billing requirements became more complicated. Requirements:Requirements:

– Realtime billingRealtime billing– Multi-Service based billingMulti-Service based billing– Web portal for customers & resellersWeb portal for customers & resellers


Problems –Total Control and Monitoring of Money Making System

System owners (administrators) want to control the System owners (administrators) want to control the infrastructure systems 24x7infrastructure systems 24x7

Easy-to-use and at the same time powerful control Easy-to-use and at the same time powerful control mechanisms are required to manage highly mechanisms are required to manage highly distributed solutions.distributed solutions.

Open standards provide multi vendor supportOpen standards provide multi vendor support


Proposed Architecture

OverviewOverview PrinciplesPrinciples


Architecture – Overview

H323 GK

SIP

H323

H.323 Gateway

Mail Messaging Serv er

DataAccess Serv er

Application Serv er

Authentication Serv er

Notif y Serv erSchedule Serv er

CDR Serv er

Billing Serv er

SIP Gateway

Proprietary Interf aces


Data Repository / Billing Sy stem

Statistics Serv er Rev iv er

SIP Proxy

ISDN Gateway

ISUP Gateway

RTP Proxy Serv er

RTP

PSTN Signalling &Media

Signalling and MediaProxies/Gateways

Infrastructure Servers

VoIP Media

Gateways

CORBA


VoIP Signalling

RADIUS


Architecture – Principles

The switching is distributed among the number of The switching is distributed among the number of dedicated modules (no central unit)dedicated modules (no central unit)

Separation of service logic from the Separation of service logic from the signaling/media handlingsignaling/media handling

Is not tied to the particular signaling/media typeIs not tied to the particular signaling/media type Does not rely on the particular media server Does not rely on the particular media server

platform’s vendorplatform’s vendor IP-centricIP-centric


the Problems Solutions

Smart signaling/RTP NAT agents, RTP Smart signaling/RTP NAT agents, RTP proxying/scriptingproxying/scripting

Distributed architecture/clusteringDistributed architecture/clustering Application servers/totally web enabledApplication servers/totally web enabled Integrated billingIntegrated billing Realtime SNMP monitoringRealtime SNMP monitoring


Solutions - Smart Sign./RTP NAT Agents, RTP proxying/crypting

CPE1

CPE2

CPE3

CPE4

CPE5 RTP NATAgent

SIP NATAgent

5060

9000

RTP Proxy

SIP Proxy

RTPMultiplexed

RTP

RTP

RTP

RTP

RTP

Fire

wal

l with

NA

T

Interaction between CPEs and Softswitch modules


Solutions - Distributed Architecture/clustering

Software side – processing is spread out among Software side – processing is spread out among the different software serversthe different software servers

Hadware(low level) side – clusteringHadware(low level) side – clustering


Solutions – ApplicationServers/totally Web Enabled

Scenarios handlingScenarios handling Voice/fax/e-mailVoice/fax/e-mail Events schedulingEvents scheduling

Mail Messaging Serv er

Application Serv ers

Service SupportServers

CORBA

Schedule Serv er


Solutions – Integrated Billing

It requires integration of the billing with other components It requires integration of the billing with other components of Softswitch.of Softswitch.

CDR Serv er

Billing Serv er


Data Repository / Billing Sy stem

CORBA

RADIUS

Bill ing support

CDR Server

LocalStorage

Application Server

Script

Script

Script

Billing Server

Data Repository

StartSession

CloseSession

StartCDR

CloseCDR

Interaction with the Billing system


Solutions - Real time SNMP Monitoring

SNMP is common standard, supported by a number SNMP is common standard, supported by a number of known tools such as HP OpenView and etc.of known tools such as HP OpenView and etc.

SNMP is combined with extention standards, like SNMP is combined with extention standards, like AgentX.AgentX.


Current Applications

IP-Centrex (IP-Office)IP-Centrex (IP-Office) Advanced calling cardsAdvanced calling cards VoIP exchange/Clearing houseVoIP exchange/Clearing house ASP/outsourcingASP/outsourcing


Applications –IP-Centrex (IP-office)


Applications –Advanced calling cards

Online billingOnline billing SS7, PRI ISDNSS7, PRI ISDN LC/COS/QoS/channel load routing, LC/COS/QoS/channel load routing, Authentication by trunk Authentication by trunk

group/DNIS/ANI/prefixgroup/DNIS/ANI/prefix Remote control on the WebRemote control on the Web


Applications - VoIP exchange/Clearing house

Clearing houses become common and convenient Clearing houses become common and convenient tools for a number of the customer types – small tools for a number of the customer types – small sized carriers, end-users.sized carriers, end-users.


Applications - ASP/outsourcing

ASP based business model – can be provided by ASP based business model – can be provided by outsourcing of full range of the Softswitch services outsourcing of full range of the Softswitch services to a number of customers – authentication, routing, to a number of customers – authentication, routing, billingbilling

In strongly competitive economy ASP-model reduces In strongly competitive economy ASP-model reduces financial risks for carriers.financial risks for carriers.


Trends

Wireless support (Wi-Fi, other)Wireless support (Wi-Fi, other) New mediaNew media VoIP houses - direct access to traffic sellersVoIP houses - direct access to traffic sellers UM applications utilizing speech technologiesUM applications utilizing speech technologies


Trends –Wireless Support

Next generation end users will have just simple Next generation end users will have just simple PDAs with IP-phones installed and use full range of PDAs with IP-phones installed and use full range of the services that the Softswitch can providethe services that the Softswitch can provide (IP-(IP-Centrex, etc.)Centrex, etc.)


Trends –New media

Support of live mixed media traffic Support of live mixed media traffic (video/audio/graphics/text)(video/audio/graphics/text)

Content-on-demandContent-on-demand Video-conferencingVideo-conferencing IMIM


Trends –VoIP houses

VoIP houses will allow for the customers to directly VoIP houses will allow for the customers to directly access to the actual traffic sellers, avoiding the access to the actual traffic sellers, avoiding the costs associated with ‘intermediate’ carrierscosts associated with ‘intermediate’ carriers

Sophisticated routing schemes will be implemented Sophisticated routing schemes will be implemented – dynamic QoS (policy agents)– dynamic QoS (policy agents)

Combination a variety of telecom services on Combination a variety of telecom services on demand (not just traffic termination)demand (not just traffic termination)


Trends –UM applications

UM applications will utilize intellectual voice UM applications will utilize intellectual voice gateways to provide fully automated service gateways to provide fully automated service generation frameworksgeneration frameworks

UM applications will combine more media types: UM applications will combine more media types: including live video, audio, textincluding live video, audio, text


Tasks to resolve

Security – CPEs do not support encryptionSecurity – CPEs do not support encryption Minimization of the bandwidth utilization for some Minimization of the bandwidth utilization for some

applications (IP-Centrex)applications (IP-Centrex) WEB telephony support (mobile IP, DHCP, etc.)WEB telephony support (mobile IP, DHCP, etc.)


Questions ???

?


Contacts

RealEast Networks, LLCRealEast Networks, LLC

www.realeastnetworks.comwww.realeastnetworks.com

[email protected]@realeastnetworks.com

Thank YouThank You

5 february 2003 reality and future softswitch - reality and future nikolay ilyin chief technical...

Documents

future softswitch reality

softswitch slide

future natfirewall

future problems easy

future problems natfirewall

future problems productivity

future architecture

future problems total