Comments as a ManufacturerMemberBob Martin

Chief Technical Officerbobmartin@lucent.com

TINA Conference2000

TINA-C style architectures are emerging in many places in the next generation network

“Open”

“Closed”

Network Dependent Services

Service Control

User Services Service ProviderServices

“Open” “Closed”

Hosted Services onOpen Networks

PSTN

Wireless

Intelligent Network

PSTN Wireless Intelligent Network Internet

Internet

There is a disaggregation of services, switching, transport, and access

Services interwork across multiple network types

Open and flexible interfaces - API’s & protocols, allow ISVs to create new services

Standard API’s

Softswitch follows a TINA-C style architecture

Softswitch Model

PSTNIP

ATM

IP

ATM

Packet Data Backbone

Media Gateway Media Gateway

Management System

Billing System

SignalingNew Services

control

PSTN

control

3G-wireless networks are following the TINA-C style architecture

Internet

PSTN

CommonBase Stations

Radio Network Control

MediaGateways

Softswitch-basedSoft MobileSwitching

Center

Service optical networks are following TINA-C style architectures - though with very different API’s and “call models”

SoftWaveSoftWave

Optical Network Topology View

New Style Optical Services•Bandwidth Trading•Optical VPN’s•Selectable QoSCustomer Programmability

SCP ONLY SCP + Adjunct Advanced Toll-Free Automatic Callback Area Number Calling IN Unified Messaging Authentication Center Network Announcements E911 Incoming Call Screenin Internet Call Diversion Short Message Service Center LIDB services Voice Activated Dialing Local Toll Free (800 portability) Personal/Single Number Servic Network ACD/Contact Center E-mail reader Number Portability Instant Messaging (e.g. "Teen talk") Over-the-Air Service Provisioning Internet Call Waiting/Management PrePaid Service Personal Assistants Standalone Home Location Register Talking Call Waiting Televoting Outgoing Call Screening/ Calling Party Pays Calling Party Verification Location Based Services Flexible Alerting/simultaneous ringing Virtual Private Network Calling Card Calling Name display

Open network case study - what happened withAIN services?

VendorISV, Telco, & Vendor

There was not an explosion in network services with AIN - Why Not?

Operations & Tariffing Complexities?

Disparate, Partially Deployed Switch Triggers?

Voice Services Running Dry?

Feature Interaction?

Limited Functionality End User Device?

Feature interaction is a complex network services attribute that can prohibit an open programming environment for network services

Feature interaction occurs when a feature’s behavior changes - intentionally or unintentionally - in the presence of another feature – Circular Call Forwarding– Unlisted Number, Caller ID, E911 & “Hang up”– Call gapping & emergency calls– Internet Call Waiting & Call Forwarding On No Answer– Denial of service, distributed attack?– Emergency virus shield download?

When the subscriber is busy, an incoming call triggers a cw tone at the subscriber and a normal dial tone at the caller. The cw tone can be repeated at most once. After a 10 sec interval (9..30sec)…… (Telcordia LSSGR)

Time neededto solve problem oncontemporary machines

New tools and faster processors reduce verification time by 10,000

10000

1000

100

10

11980 1987 1995 2000

100000

Se

co

nd

sNew tool for Automatic Verification of new services ensures correctness & non-interference, and speeds time to market

Properties

Source Code

Abstractions

Extractmodel fromsource code

Generateerror

traces insource

languageSchedule

andexecute checks

Compileexecutable

model check-- one perproperty

Convertformulae

to testautomata

Web-based travel service is a simple application that ..

is not as simple as it looks

IMT

RAS

Class 4Switch

IPATM

IPATM

TrunkingGateway

Access

IP LAN

ACD

IPATM

AccessGateway

Web Server Web/Push Server

VideoWeb Server

SCP

SS7

DistributedNetwork

Controllere- Tailer

CTIServer

Call Center

e-Shopper

DB

JavaApplet

GK

Several major challenges remain To achieve TINA-C objectives

Feature Interaction (and the degree of access to core network)

Next Generation Networks “Stitching” Integration– PINT– SIP

Widely-Supported Standard “Service” API’s For Application Domains– Progress with JAIN, Parlay, OSA– Business integration with the WEB world is needed

Open Telecommunications & Information Software Component Marketplace in Network Management– Group of Seven– ITU

Final