Virtual Data Systems, Inc. Value Proposition of IP Telephony

Voice over IP Technologies

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Voice Over IP Overview

VoIP is an emerging technology that allows voice calls to be made over an IP network. Vendors have been pushing VoIP for a few years, but many potential customers have been waiting for “better” call quality, or believe that nothing is free.

If applied and configured correctly, a VoIP solution can provide excellent call quality, and tremendous financial savings to both large and small organizations.

The Key to implementing a successful VoIP solution is to Identify opportunities that fit.

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Do Companies Want VoIP?

76% Will!76% Will!

Unsure

4%Not at all

likely

4%Not very

likely

16%

Likely

28%

Very likely

32%

Extremely

likely

16%

Source: Network World 500/ Progressive Strategies 08/11/1998, p. 36

Network World asked 500 readers to assess whether they would consider using voice over IP:

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Key Business Drivers for LAN-Based Telephony and VoIP

81%81%

59%59%

38%38%

26%26%

0 50 100

Save MoneySave Money

Better Utilization of BandwidthBetter Utilization of Bandwidth

Support MultimediaSupport Multimedia

Improve Network ManagementImprove Network Management

Source: Survey by Yankee Group Survey, 10/98 Source: Survey by Yankee Group Survey, 10/98

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Identifying VoIP Solutions

Customer Specific Questions -• Does the customer make long distance calls between offices ?• Does the customer have a large, at-home workforce?• Has the customer already made an existing investment in WAN infrastructure which could be leveraged for a VoIP solution?• Is the customer looking to set-up a call center?• Is the customer looking to scale-down communications support costs?

Project Specific Questions – • Is there enough bandwidth? (if no, how much more is needed?)• Does customer already have required network infrastructure?• What is the ROI on the VoIP project?

VoIP is a simple concept to sell, but answer these questions before hand to determine if the application fits

Virtual Data Systems, Inc. Value Proposition of IP Telephony

How does VoIP Work?

1. Compression – voice is compressed typically with one of the following codecs, G7.11 64k, G7.29AB 8k, G723.1 6.3k

These steps happen in reverse at the other end

2. Encapsulation – the digitized voice is wrapped in an IP packet

3. Routing – the voice packet is routed thru the network to its final destination

The 1-2-3s of VoIP

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Types of VoIP Technologies

1. IP LAN Telephony or IP PBXs

• By design, an IP based telephone PBX system • Telephones are IP handsets and codecs in one • PBX chassis performs call routing and traditional telephony functions• Voce travels over Ethernet computer LAN• TOP Manufacturers include: Cisco and 3COM / NBX

2. VoIP Gateways • Devices which allow the bridging of legacy PBX systems and/or analog

telephones over IP networks.• TOP Manufacturers include: Cisco, 3COM, and Ericsson

Virtual Data Systems, Inc. Value Proposition of IP Telephony

IP LAN Telephony or IP PBXs

NBX Chassis

NBX Business TelephoneFull-featured Ethernet-based telephone

NBX Call Processor (NCP) card

NBX Analog or Digital Line Card

NBX 10BASE-T Hub CardNBX Open Platform allows for theuse of industry-standard network hubs & switches to connect additionaltelephone sets

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Can be Switched 10 Mbps

IP PBX Architecture

*NBX 100 is Independent of the Network File Server

*NBX 100 Systemstays up even when

the file server goes down.

NetworkFile Server

Hub or switch, 10/100

CAT-5 Ethernet

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Sample Application

PSTN

Router

Layer 2Switch

PBXMain Office

SO / HO

HUB

IP Router or ISDN, DSL LAN Modem

IP Network

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Sample Application

IP Network

Small Office 1

IP RouterHub or Switch

NBX 100

Small Office 2

IP Router

NBX 100

PSTN

PSTNHub or Switch

Virtual Data Systems, Inc. Value Proposition of IP Telephony

VoIP Gateways

Allows the bridging of IP and circuit switched telephony devices

Primary Uses of VoIP Gateways

• Toll By-Pass, #1• Integration of heterogeneous PBX environments over WAN • IP Gateway for Mobility• Telecommuters, SOHO

TOP Manufacturer VoIP Options

• Cisco, VoIP Card for 2600 series (and up) routers• Manufacturer Specific Gateways, (Nortel, Lucent, Siemens, etc.)• Ericsson WebSwitch (WebSwitch 100 and 2000)

Ericsson offers most overall flexibility and customer value

Virtual Data Systems, Inc. Value Proposition of IP Telephony

How VoIP Works

LAN BLAN A

GW router GWrouter

PBX A PBX B

EXT 101 EXT 201IP Network

EXT 101 places a call to ext 201. PBX A sees ext 201 as the gateway and sends the call out to the GW. The GW compresses the voice and encapsulates it in an IP packet and sends it to the destination of the other GW. The GW on LAN B must strip out the IP, decompress the voice and route it to PBX B.

Virtual Data Systems, Inc. Value Proposition of IP Telephony

VoIP Application

PBX

Digital Handsets

PBX

Branch Office #2, TX

Digital Handsets

Branch Office #1, FL

Digital Handsets

PBX

Main Office, CA

FR Network

Frame Relay Connection

Ericsson Webswitch 2000

• Allows Toll By-Pass via FR Network• Local dial tone at remote office• 3 digit extension dialing between offices

Virtual Data Systems, Inc. Value Proposition of IP Telephony

VoIP Application

Analog Phone

Analog FAXWS 100

Analog Phone

Analog FAXWS 100

Digital Handsets

PBX

Main Office, CA

T1 Internet connection

PC

Telecommuter

PC

Telecommuter

DSLCableconnection

InternetWebswitch 2000

• Toll By-Pass via Internet• Analog phones appear as extensions on WS200

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Issues Associated with proper VoIP Implementation

• Assess current user requirements and future needs (video ?)

• Assess corporate LAN / WAN infrastructure and determine required upgrades or modifications, if required

• Modify security systems for VoIP (firewalls)

• Implement correct Quality of Service and data prioritization (latency problems)

• Create and maintain master IP addressing to EXT schema

• Proactive monitoring of available network bandwidth and utilization rates

Virtual Data Systems, Inc. Value Proposition of IP Telephony

Converged Networking from Virtual Data Systems

VDS has over 5 years of experience designing and implementing converged networks supporting voice, video and data services

Only VDS can provide proven best of breed technologies: • Cisco Premier Partner• 3COM Voice Solutions Partner• Ericsson-Webcom Solutions Partner• Polycom Solutions Provider (IP video systems)

VDS can provide turnkey solutions including: system design, specification, equipment supply, installation, configuration and user support services

Local and available to help YOU make the SALE!

Virtual Data Systems, Inc. Value Proposition of IP Telephony

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