Architectures for IP Telephony

Deployment

Moderated by

Allan SulkinTEQConsult Group

Evolution of Modern

PBX System Design

Stored Program

Control

1970 1975 1980 1985 1990 1995 2000 2005 2010

Digital TDM

Fiber Distributed

Port Carriers

Remote

Port Carriers

Survivable Remote

Port Carrier

LAN-based

Client/Server

SIP

Linux

O/S

Carrier-Grade

Soft Switch Design

SOA

Telephony/UC

Server

1975 1980 1985 1990 1995 2000 2005 2010

Performance

Enterprise Communications System

Life Cycles

Digital TDM/PCM

IP

E/M

E/M: Electromechanical

KEY TDM/PCM: Time Division Multiplexing/Pulse Code Modulation

IP: Internet Protocol

1GIP

2GIP

2007 PBX System Profile(US Market, only)

Line Station

Shipments

Analog

Digital

IP

IPT System Design

Converged

Softswitch

IP-Enabled

66%24%

10%

45%

45%

10%

Current IP Telephony SystemDesign Platforms

• IP-enabled Circuit Switched

• Converged Circuit/Packet Switched

• Telephony Softswitch

– Enterprise-grade

– Carrier-grade

• Integrated Telephony/UC Server

System Designer Focus

Telephony

(e.g. Siemens)

Desktop Applications (e.g. Microsoft)

Networking

(e.g. Cisco Systems)

Client/Server

Telephony/UC

Main Office

HiPath 4000Host System

7

SMG

Siemens HiPath 4000

Circuit Switched System Architecture

Survivable Media Gateway(SMG)

WAN (IP)

SMG Local ProcessorCan Assume Control if Host System is Lost

Gateway Boards

Siemens HiPath 8000 SIP Softswitch

Siemens OpenScape

Unified Communications Server(Merging of HiPath 8000 & OpenScape Offers)

SIP

Session

Control

Availability

Management

Aggregated

Presence

QoS

Management

Session

Detail

Reporting

Admin and

Licensing

HiPath

8000

V3.1 R2

OpenScape

Video

HiPath

Mobile

ConnectXpressions

OpenScape

UC

Application

V3.0

HiPath

ProCenter

HiPath

Open

Exchange

V3.1 R2

Software Foundation

OpenScape Applications

OpenScape UC Server ME, LE, & Hosted Editions

Cisco Network-Centric Architecture

Campus Core

Campus

Data Center

WAN

Branch

PSTN

UCM Servers

SRST

Cisco UC Manager Platform forCollaborative Communications

Telepresence

UC Manager

MeetingPlace -Collaboration

Unity

IPICSUnified Mobile Communicator

MOC or ST

Unified Personal Communicator

UNITY

Microsoft OCS 2007

Software-Powered Architecture

Option 1 Option 2

Simultaneous ringing on

Office Communicator and legacy phone

Microsoft’s Core

Software-Powered Architecture Servers

Mediation Server Conferencing Server

(Audio, Video, Data)

Speech Server

(IVR)

Exchange Server 2007

(Unified Messaging)

OCS 2007 Front End Servers

Registrar, Proxy, Presence Server

Backend Server

SQL Database

Active Directory

Server

Archiving/CDR

Server

Mgt Access

Inbound Routing

Outbound Routing

Voicemail Routing

Panel Issues to be Discussed

• Architectural & Design Attributes of Each Platform

• Customers Benefits and Advantages Associated with Each Design Platform

• The Emerging Role of Unified Communications as it Affects Traditional Telephony Operations

• The Evolution to a Wireless Mobile Communications Platform

• Current and Developing Communications Standards

• Open Source Solutions

Panel Participants

• Al Baker, Siemens Communications

• Russell Bennett, Microsoft

• Bryan Tantzen, Cisco Systems