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Voice Readiness
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Questions to consider before initiating a VoIP implementation:
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How will traffic be prioritized on the existing
network to ensure voice quality?
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How can enterprise-level reliability for
phone service be ensured?
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How can network support of all the telephony
applications that users need now and in the future be guaranteed?
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How will security threats to voice traffic be
handled?
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How will the network be scaled to
cost-effectively support IP telephony?
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How will IP phones and other devices be
powered where AC power is unavailable or inconvenient?
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How will mobile users be supported?
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How can an affordable transition from the
legacy infrastructure to a secure, converged network be
accomplished?
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For most organizations today, it’s less a matter of if and when, but more, a
matter of how to embrace IP telephony communications. Since 2005, when the
balance tipped and more IP telephony systems were shipped than traditional
time-division multiplexed (TDM) phone systems, Voice over IP (VoIP) has become
the technology of the present and the
future.
In thousands of installations worldwide, VoIP communications are enhancing
collaboration, increasing productivity and lowering costs. But even networks
that have been optimized to handle large and complex data workloads may not be
ready for an IP telephony implementation.
WHAT CHARACTERIZES A VOICE READY NETWORK
- QUALITY. Delivery of reliable, high-quality
voice communications— comparable to what users get with traditional PBX
systems—plus, support for advanced IP functionality.
- SECURITY. Protection of voice traffic from
vulnerabilities and threats, including those introduced by data traffic
running on the same network infrastructure.
- SIMPLICITY. Elimination of complexity for
users and managers, and the ability to easily and economically scale the
network to support new devices and applications.
ENSURING QUALITY
To carry on business effectively, users must be able to conduct conversations as
if they were in the same room with the person on the other end of the line. With
the latest codecs, audio quality on IP phones now surpasses what was previously
possible on analog or even non-IP digital phones. But to attain business-level
clarity and immediacy, the network must deliver sufficient bandwidth to support
the voice traffic and provide the quality of service prioritization that
prevents latency, “jitter” and prolonged call setups.
Just as important, the network must be able to reliably deliver a dial tone
across the entire organization, over both wired and wireless installations.
Phone users have long been accustomed to virtually 100% uptime. Most businesses
can’t tolerate interruptions in their telephony service, losing money by the
second when calls fail to get through. So a Voice Ready Network must provide
high-availability, with the capability to support additional survivability
features such as resilient links, uninterruptible power or back-up systems if
required.
In addition, a high-quality Voice Ready Network needs to be amenable to the
strategic vision and budgetary constraints of the organization. If a company is
planning to implement a call center, the network should support that capability
in advance to ensure functionality and keep implementation costs in check. If a
business expects to open another district office, the network should be
architected to sustain employee productivity with telephony survivability
features that can withstand even a WAN failure. Or if video-based training will
eventually be part of the picture, the network installed today ought to be able
to accommodate the bandwidth and low-latency demands that quality video signals
will entail tomorrow.
GUARANTEEING SECURITY
The various threats to business data networks—ranging from Trojans and worms, to
distributed denial-of-service attacks and intellectual property theft—are well
known to IT professionals. But voice traffic is just as susceptible to attacks
as data traffic, with most incursions occurring from within the firewall.
Wireless networks present additional
points of vulnerability.
To protect business-critical communications of all types, the network must be
capable of defending itself at the infrastructure and application levels by
identifying threats and removing them while maintaining network integrity. In
addition, network performance must be protected against traffic congestion
generated by peer-to-peer, instant messaging and spyware activity.
Network Access Control (NAC) is another key element in ensuring a secure VoIP
network. The cost of not keeping the network secure from unauthorized entry can
be devastating to the organization, and government- or industry-mandated
penalties for noncompliance can also be severe. NAC technology identifies a user
attempting network access, verifies that the device being used meets minimum
security policies, and implements the proper access controls.
PROMOTING SIMPLICITY
The Voice Ready Network not only needs to be simple to manage, it must be able
to scale as the business grows. This requires an intrinsically simple
architecture that distributes intelligence where it is needed with minimal
hands-on manual configuration.
Communications are becoming increasingly mobile every day, but mobility means
more than un-tethered phones and ear buds. It also involves converging wired and
wireless technologies and delivering critical applications to employees at home,
in remote locations or on the road. That is why the network needs to be
mobile-ready as well as voice-ready. Technologies such as those based on Session
Initiation Protocol (SIP) will be particularly important in simplifying the
process of extending full telephony privileges to users as they travel or roam
the building.
Then there is the matter of migration. Most businesses prefer a migration
strategy that is really more of a transition strategy. That is, they want to
leave as little of their legacy network behind as possible when they move to a
voice-capable infrastructure. This requires a thorough network assessment and
implementation plan. Plus, it means installing voice capable solutions with the
flexibility to support a wide range of applications and a full complement of
industry standards.
To simplify the transition to voice, network technology should be exhaustively
tested for compatibility, survivability and multi-vendor interoperability. This
way, the company can preserve current investments and avoid costly and
disruptive rip-and-replace upgrades.

BE PREPARED
In today’s highly competitive environments, every organization needs to extract
every possible advantage from voice technology—especially in promoting
collaboration and communications. How can you ensure that your business has the
best tools to achieve these goals when the pace of technology innovation is so
unrelenting?
The place to start in strategic planning is to assess your company’s readiness
to move to a converged network. CompuData offers comprehensive Readiness
Assessments for your business as a first step in the deployment process. Careful
planning is the first step to ensure a smooth VoIP deployment.
Call CompuData at 800.223.3282 to schedule your IP Telephony Readiness
Assessment. |