Developing High Performance SS7 · PDF fileDeveloping High Performance SS7 Applications Tom Baumgartner Dan Rothschild NMS Communications October 5, 2004. Slide 5 Telecom ... BSSAP

TelecomInnovators’

Web SeminarSeries

Developing High Performance SS7 Applications

NMS Communications

October 5, 2004

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www.nmscommunications.com

NMS at a Glance

Founded in 1983, publicly traded since 1994Technology and solutionsDesigned into products deployed in 90 countriesMajor telecom operators, equipment and solution providers rely on NMS Product

DevelopmentSales & SESupport

Channel Partner’s Headquarters

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20+ Years of Telecom Innovation

Innovative, future-proof solutionsRapid ROI

Open TelecommunicationsDeploy in any network — TDM to IPBlade to system versatility; superior scalability

Blue chip partnershipsApplications, content, integration


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Developing High Performance SS7 Applications

Tom Baumgartner Dan Rothschild

NMS Communications

October 5, 2004

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Agenda

SS7 IntroductionNMS SS7 products

SS7 softwareTX 4000(C)Global interoperabilityCarrier-grade features

Developing SS7 ApplicationsArchitectural considerationsCarrier-grade functionalityApplication #1 Ring Back TonesApplication #2 Passive Monitoring

Summary

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SS7 and Enhanced Services in the Wired Networks

SCP SCP

STPSTP

PBXPBX

LE

Tandem

Tandem

Tandem

IMTIMT IMT

PRIPRI

CircuitSwitched

Voice ChannelsSS7

IMT IMT

LE

POTSPOTS

ISDN PRI1 or 2 dedicated signalling channels

Enhanced Services800 numbersLNPPrepaidFollow-meEtc.

Enhanced ServicesVoice Rec 411Call Centers (411, 611, 911, Operators)Equal Access (IXC)

Enhanced ServicesCall CentersIVRAuto-attendant with voice recVoicemailCalling number display…

Enhanced ServicesVoicemailPrepaid

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SS7 and Enhanced Services in Wireless Networks

MSC

VLR

BSCBTS

MS

HLR

SMS-C

Enhanced ServicesMobility ManagementLocation based

Enhanced ServicesShort Message Service

Enhanced ServicesVoicemail with SMS notificationVoice portalsEtc.

Enhanced ServicesPre-paid

SS7

Voice ChannelsSS7 or Signalling

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SS7 in Next-Generation Networks

SignalingGateway

Softswitch

TDM

MGCP/MEGACOPSTN

SS7

IP Network

SIGTRAN

RTP/IP

SIP/H323

RTP/IP

MediaGateway

MediaGateway

Media Server

STPSTP

SCPSCP

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SS7 Protocol Stacks

MTP1Physical layer (E1, T1,… )

MTP2Accurate end-to-end transmission

MTP3Routing of messages

ISUP / TUPEstablish calls

SCCPSubsystem routing

TCAPDatabase look-up for Intelligent Networking

NMS-provided

MTP Layer 1MTP Layer 1

TUPTUP

IS634/BSSAPIS634/

BSSAP



SCCPSCCP

TCAPTCAP

IS-41/ MAP

IS-41/ MAP INAPINAP

ISUP

ApplicationApplication

T1, E1, H.100, H.110

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Examples of ISUP and TUP Applications

Voicemail systemsDebit card centersRing-back tonesIntelligent peripheralsAnything in the network that needs to accept/make telephone calls

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Examples of TCAP-Based Applications

Enhanced 800, 0800 servicesAlternate billing systems (e.g., calling card validation)Local number portabilityOne Number Follow MeWireless HLR/VLR databasesShort Messaging Systems (SMS) Intelligent call routing (e.g., geographically distributed Automatic Call Distributors)Anything in the network that need to look-up for information before connecting calls/during calls

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Agenda




Summary

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SS7 Software Protocol StacksAPIs available for

ISUPTUPTCAPSCCPMTP 123Passive monitoring

SS7 version 4.1Compatible with Natural Access 2004-1Windows 2000, Windows Server 2003Intel Solaris 8SPARC Solaris 9 (32-bit, 64-bit and mixed mode)Red Hat Linux 9 (kernel 2.4.20)Red Hat Enterprise 3.0


TUPTUP

IS634/BSSAPIS634/

BSSAP



SCCPSCCP

TCAPTCAP

IS-41/ MAP

IS-41/ MAP INAPINAP

ISUP


T1, E1, H.100, H.110

NMS-provided

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SS7 Software

Point Code sharing between two TX cardsBoard-level support of link redundancyMTP3/ISUP/SCCP/TCAP/TUP in primary/backup modeBoth MTP2 layers active

Supports multiple Point Codes on one board*Reconfiguration of signaling link locations without re-boot*Global Messaging Toolkit (ISUP)

Allows extension of ITU, ETSI, and ANSI standardsRich set of application demo programsCompetitively-priced licensing options

MTP or Full Stack4, 16, or 32 Links

* new feature in SS7 version 4.0

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TX 4000 Series

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TX 4000 and TX 4000C

Upgrade path for TX 3220(C) usersSame functionality — includes redundancy support for high availability

Up to 32* signaling linksTwo times more than TX 3220

High-performance processing*ISUP: >800 calls/ sec. (based on 5 messages/ call)TUP: >1000 calls/ secTCAP: >1500 transactions/ sec (query + response)

Software selectable* T1 or E1 (120 ohm) trunksPCI: 4 trunks*CompactPCI: 8 trunks*

PICMG 2.16 Ethernet connections option*

* new features

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Globally Deployed/Supported

TX series has been deployed all over the worldIn many countries – on six continents!Against all brands of switchesIn most SS7 networksSee web/data sheet for more details

Some government approvals for protocols

NMS has Tech Support in US, Hong Kong and Paris

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Carrier-Grade Capabilities With Point Code Redundancy

SS7 signaling infrastructure is mission-criticalNMS SS7 redundancy preserves stable calls/transactions

Share Point Code(s) on 2 boards in different or same chassis No single point of failure protects against

Link failuresSignaling board failuresServer failures

Utilizes on-board high speed private EthernetSupport in MTP, ISUP, SCCP, TCAP and TUP

ManageabilityIncrease circuit capacity without service outageUpgrade server hardware or software without service outage

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Point Code Redundancy Illustrated

2 SS7 boards share 1 point codeActive-Active mode for MTP1/MTP2 layersSecondary MTP1/MTP2 traffic routed to Primary via dedicated EthernetActive-Standby mode for layer MTP3 and upCheck-pointing APIs for ISUP

TCAP, SCCP, MTP3, TUP automatic

SS7 traffic data(over Ethernet)

MTP 12(Active)

MTP 12(Active)

MTP3(Secondary)

MTP3(Secondary)

Application(Secondary)

Application(Secondary)

TCAP(Secondary)

TCAP(Secondary)

MTP 12(Active)

MTP 12(Active)

MTP3(Primary/Active)

MTP3(Primary/Active)

Application(Primary/Active)Application

(Primary/Active)

TCAP(Primary/Active)

TCAP(Primary/Active)

Check-pointingCheck-pointing



MTP

Application

STP STP

Stan

dby

Sign

allin

g se

rver

Act

ive

Sign

allin

g se

rver

TCAP

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Agenda




Summary

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Applications —Host-Based Architecture

SS7 TrafficSS7 Traffic

Host

Voice CircuitsVoice Circuits


TX PlatformTX Platform

AG / CG PlatformAG / CG Platform

NMS-provided

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SS7 TrafficSS7 Traffic



Application Server

Application

SS7 Traffic

Host

SS7 ClientS/W

TX Platform

Applications —Client-Server Based Architecture

Signalling Server

SS7 Server

S/W

SS7 Server

S/WTX PlatformTX Platform

Media Server

ClientS/W

ClientS/WAG / CG PlatformAG / CG Platform

Media Server

ClientS/W

ClientS/WAG / CG PlatformAG / CG Platform

Application Server


NMS-provided

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SS7 Sample Application #1 –Ring Back Tones

Allows a subscriber to select the tones played back to their callers instead of the normal ringtoneLaunched in Asia with massive successRollouts happening in Europe soon – US to followBenefits

More ARPULess churn

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RingBack Network Deployment

MyCallerService

Gateway Data Center

MSC

HLR

SCPMSC

Subscriber Info

Hosting Center

Audio

Digital AssetManagement

Web

WAP

SMS

SubscriberManagement

Subscriber Info

VoiceSS7 SignalingIP SignalingIP Interface

MyCallerRBT Node MyCaller

RBT Node

MyCallerSubscriber

Server

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SS7 Sample Application #2Passive Monitoring

ProductAPIs and tools in conjunction with a TX 4000Monitor and filter up to 16 live SS7 signalling links

MTP2 layer filter to massively reduce host loadHigher protocol layers such as ISUP and SCCP messages

ApplicationsMonitoring software detects roamer; application sends an SMS greeting messageTestingLawful intercept

Benefitsenhance customer servicegenerate revenueimage promotion

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International Roamer Registration Process

VLRVLR

MSCMSC

HLRHLR

MSCMSC

MS

PLMN : Public Land Mobile NetworkMSC : Mobile Switching CenterBSS : Base Station SystemVLR : Visitor Location RegisterHLR : Home Location RegisterMS : Mobile Station

PLMN

PLMN

BSS

1. Roamer turns on

MS

2. Request for Registration

3. Roamer’s record doesn’t exist in the

existing PLMN

4. Send update location request

to home HLR

5. HLR check roamer service profile

6. Send update location response to VLR

7. Roamer successfully registers to existing

PLMN

3. Roamer’s record doesn’t exist in the

existing PLMN

2. Request for Registration

1. Roamer turns on

MS6. Send update location

response to VLR

4. Send update location request

to home HLR

5. HLR check roamer service profile

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Moving to SS7 in Existing Applications

SS7 is not a customer premises interface Need special “permission” from a carrier in order to hook up to SS7 network

Security is enforced by physical accessSS7 would replace ISDN (or other signalling)

Basic calls are not difficult to prototype quicklyUses an NA style API for ease of useSS7 can sit in same chassis as voice resources

Some carriers will demand a conformance test before deployment

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Summary

In-network High Availability, high performance enhanced services products can be based on COTS enabling technologyNMS offers SS7 enabling technology with the features required

RedundancyHigh message handling capacityBroad range of SS7 protocol variantsBroad range of operating systemsEasy to use APIs

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Thank You!

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Please take a moment now to complete our short survey,

while we start the Q & A

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For more information……Contact

Dan Rothschild, Director of Engineering — SS7 and Protocols+ 1 847 925 8900 x5022 – [email protected]

Tom Baumgartner, Product Marketing Director + 1 847 925 8900 x5029 – [email protected]

Upcoming NMS Web SeminarsOctober 6 – “Backhaul Mgmt. - OpEx Reduction Opportunity”November 2 – “Building Mobile Video Applications”

Upcoming EventsOctober 18 – 21 – Fall VON - Boston, MA– Booth 1214October 19 – NMS Reception at the Boston Sheraton Hotel

N M S COMMUNICATIONS

Documents

Developing High Performance SS7 · PDF fileDeveloping High Performance SS7 Applications Tom Baumgartner Dan Rothschild NMS Communications October 5, 2004. Slide 5 Telecom ... BSSAP