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Oct 26, 2013 (3 years and 10 months ago)

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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!

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%

59%

38%

26%

0

50

100

Save Money

Better Utilization of Bandwidth

Support Multimedia

Improve Network Management

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 Telephone

Full
-
featured Ethernet
-
based

telephone

NBX Call Processor

(NCP) card

NBX Analog or Digital Line Card

NBX 10BASE
-
T Hub Card

NBX Open Platform allows for the

use of industry
-
standard network

hubs & switches to connect additional

telephone 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 System

stays up even when

the file server goes down.

Network

File Server

Hub or switch,

10/100

CAT
-
5 Ethernet

Virtual Data Systems, Inc.

Value Proposition of IP Telephony

Sample Application

PSTN

Router

Layer 2

Switch

PBX

Main 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 Router


Hub or Switch

NBX 100

Small Office 2

IP Router

NBX 100

PSTN

PSTN

Hub 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 B

LAN A

GW

router

GW

router

PBX A

PBX B

EXT 101

EXT 201

IP 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 FAX

WS 100

Analog Phone

Analog FAX

WS 100

Digital Handsets

PBX

Main Office, CA

T1 Internet connection

PC

Telecommuter

PC

Telecommuter

DSLCable

connection

Internet

Webswitch 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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