Toshiba VoIP MOS User manual

VoIP Deployment: Getting Started
Before you know how much a VoIP deployment will cost and how
successful it will be, you need to understand if your data network
can carry high-quality voice transmissions. The odds are that a
network upgrade will be needed to successfully deploy VoIP.
Consider the facts: Most “router-based data networks are not
ready for successful voice deployment.” - Gartner Group
Your data network was originally designed to support emails,
file transfers and deliver Web pages, not carry high quality voice
transmissions. Voice traffic is very time sensitive and can’t be
queued like email or Web traffic. Delays up to a half hour for an
email or file transfer are generally not a problem, but delays of
only a few hundred milliseconds can ruin a VoIP call, producing
choppy conversations or dropped calls.
To ensure your VoIP deployment is successful and on budget,
you need to find answers to these important questions before
deploying VoIP:
nWhat type of VoIP MOS (Mean Opinion Score) call quality can
I expect from my current data network for each business site?
nIs network delay, loss or jitter the main problem impacting
VoIP call quality, and how do I fix it?
nHow many concurrent VoIP calls can my network carry without
impacting existing data services?
Knowing this information before deploying VoIP will ensure your
success, but what is the most accurate and cost effective method
to obtain it?
Toshiba’s VoIP Assessment
The fastest and most cost effective way to determine your
network’s VoIP readiness is to conduct a Toshiba VoIP
Network Assessment.
The assessment quickly diagnoses the majority of your network
issues so that by the time you begin your VoIP deployment, you
have a converged network that will carry high-quality voice
transmissions.
Organizations that skip this important deployment step experience
poor call quality, dissatisfied users, upgrade cost overruns and
delayed deployments.
Compare in Figure 1 the typical outcome of VoIP deployments that
include a VoIP Assessment vs. ones that skip this important step:
without
Toshiba Assessment
VoIP Network Assessments
SYSTEM
APPLICATIONS COLLABORATION
UNIFIED
COMMUNICATIONS
PRODUCT
OVERVIEW
CALL
CENTER
TOSHIBA
OVERVIEW
Figure 1 VoIP Deployment Comparison

How Our VoIP Assessments Work
The goal of the Toshiba VoIP assessment is to determine how
well VoIP will sound on your network and diagnose any technical
issues that could negatively impact call quality.
Our unique VoIP assessment solution is very simple to conduct
and separates us from our competition since it does not require
onsite consultants to set up and run the assessment. We simply
ask a site employee to download a small piece of software called
a “traffic agent” onto one or two existing PCs or servers per site.
Then the assessment is run remotely by our engineers without
interrupting your operations.
The assessment determines call quality using traffic agents to
send actual VoIP traffic across your network. It measures the
resulting MOS call quality, network delay, jitter and loss for calls
between any of your business sites.
Figure 2 illustrates a VoIP assessment testing the wide-area
network (WAN) connections between the Los Angeles and New
York offices and between the San Francisco and Denver offices.
The assessment is measuring the WAN performance of 20
concurrent VoIP calls between Los Angeles and New York and
15 concurrent VoIP calls between San Francisco and Denver.
The VoIP calls are run continuously for the duration of the
assessment to measure call quality during different times of
the day and week. At the end of each VoIP call, the results are
reported back from the traffic agents to the test center and
logged in a database. These results are used to create a
detailed report summarizing the results of the VoIP assessment.
At the end of the assessment our clients know the exact state
of their VoIP network readiness:
nThe MOS call quality score between all business sites
nHow many concurrent VoIP calls each WAN will support
between sites
nThe amount of network delay, loss and jitter for each WAN
and LAN connection and how to eliminate these problems
With this information determined before you deploy VoIP, your
initial deployment will exceed user expectations and reduce
your deployment risks and costs.
Conclusion
Your network was not originally designed to carry high quality
voice transmissions. To deploy VoIP successfully you need to
conduct a VoIP Network Assessment first. If you skip this
important step your probability of difficult network challenges
is greater than fifty percent. Eliminate deployment risk, upgrade
cost overruns and dissatisfied users by conducting a Toshiba
VoIP Network Assessment. Your business will thank you for it.
Toshiba America Information Systems, Inc.
Telecommunication Systems Division
9740 Irvine Blvd., Irvine, CA 92618-1697
To locate an Authorized Dealer, call: [phone]
National Accounts [phone]
www.telecom.toshiba.com
© 2012 Toshiba America Information Systems, Inc. All product, service and company names are trademarks,
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specifications, availability, content of services, and contact information is subject to change without notice.
Literature Order #: TSD-NetwAssmnt-VC-PDF/4500122
Figure 2 Typical Toshiba VoIP Assessment