The Internet Telephony Paradox:
Combining Mutability And Stability BY
PAM THOMPSON
If you've been reading about the future of Internet telephony, you may have noticed
that prophecy is a function of profit. Companies often base their predictions on where
they think they -- and not their competitors -- can make the most money, often resulting
in contradictory assessments. But the explosive growth of the Internet telephony
marketplace has taught us one thing that nearly all companies can agree on: there is telco
time, and there is Net time. In Net time, change is the only constant, and only those
companies nimble enough to deploy rapidly, scale massively, and customize quickly will
emerge as key players.
So how does a company stay nimble and quick in the IP-telephony enhanced services
marketplace? One method is to invest in enhanced services solutions that not only promote
innovation but also ensure reliability. Until recently, this combination of innovation and
reliability has eluded enhanced services vendors. For example, systems provided dial tone
reliability, but moved in telco time since they were proprietary, inflexible and costly to
change. And computer telephony systems designed for business installations boasted the
latest innovations, but were not designed to scale or to meet the high availability
demands of a carrier environment. Telcos and service providers can no longer afford to
choose between innovation and reliability as they deliver enhanced services to the large
potential consumer market for IP telephony.
Before exploring the specifics of innovation and reliability for enhanced services, we
should make three statements about the direction of the emerging IP-telephony marketplace:
- Voice, fax, data, and video communications are converging toward a single,
packet-switched network.
- Packet-switched networks offer significant economic advantages over circuit-switched
networks.
- Multimedia, open communications infrastructures are enabling a rich new generation of
enhanced services that could become as ubiquitous as the telephone is today.
Enhanced service providers that can bring innovation and reliability to Internet
telephony will be numbered among those who are able to keep up.
BETTER ENHANCED SERVICES
Over the next several years, millions of consumers will demand a customizable virtual home
or virtual office. They will want to customize their mailboxes and manage their voice,
fax, and e-mail messages using any device connected to the Internet. And they will want to
present their callers with a variety of greetings, languages, and voices. Then there are
other telephony features - call screening, wake-up calls, reminder messages, extra
mailboxes, calling cards, paging - as well as secure personal address books that allow
users to speed-dial their contacts at any time.
Service providers should invest in a system that gives them the flexibility to bring
these new services to market quickly. They will want to customize mailboxes to appeal to
specific demographic groups and tap new customer segments. They will want to bundle
unified messaging and Web access with other network services such as wireless and long
distance. Since messaging repeatedly pulls users to the same point, service providers
should also generate new sources of revenue when they integrate personalized content and
commerce services.
Above all, service providers need to offer messaging services targeted to each of their
end user segments. The old regulated model of "one size fits all," like the Ford
Model T, is finally a thing of the past. This is not to suggest that innovation means
overloading applications with features and complexity. Innovation in the enhanced services
space will simply need to come in the form of compelling end user value.
It is important that new voice, fax, or e-mail messaging systems be as intuitive and
personalized in the telephone interface as they have recently become in the Web interface.
Enhanced services that can be targeted to fit specific segments will provide service
providers with the most compelling form of differentiation - personalization and value -
which will increase penetration and create new markets.
OPEN SYSTEMS
Enhanced services solutions comprised of open systems that integrate applications and
hardware from multiple vendors can provide significant benefits to telcos and service
providers. Ideally, service providers will be able to make the transition to new solutions
rapidly, leveraging continuous innovation, then pass along the cost savings. Also, with
the right design, open systems can provide additional benefits: rapid customization,
adoption of standards, scalability, high availability, and an architecture that can be
distributed. Each is briefly considered below:
Rapid Customization. Carriers will need to rapidly customize
enhanced services or modify major facets of telephony applications such as telephone and
Web user interfaces, database, and phrase management - all in Net time. These changes have
historically been difficult or costly to incorporate on proprietary platforms. With open
systems, it is much easier to develop new applications, as well as to integrate exciting
new applications from third party developers. Enhanced services providers will be smart to
build rapid application creation environments into their platforms.
In addition, service providers are beginning to embrace enhanced services platforms
built on the Windows NT operating system as they see obvious price-performance benefits
and the groundswell of exciting new applications emerging around NT. Microsoft designed
NT, its development tools, and their component architecture (COM and DCOM) to make it fast
and easy to develop and integrate applications. For instance, an open systems developer
might use COM to interface unified messaging with the latest in personal information
managers (PIM) or voice activated dialing (VAD).
Standards. H.323 details interoperability between terminals,
gateways, and multipoint control units, and it has quickly developed into the IP-telephony
standard, so enhanced application platforms need to be H.323 compliant. Systems must also
interface with standard messaging e-mail protocols like SMTP, POP3, IMAP4, and VPIM for
voice mail or fax messaging over the Internet. Following standards is critical for
interoperability with other IP-telephony solutions.
Modular Architecture. Designers are choosing component-based
hardware and software architectures to ensure rapid deployment of new applications and
functionality. This modular approach enables developers to roll out new applications, new
protocols, and new hardware and software components easily and rapidly.
Distributed Architecture. Since the cost of hauling calls
over an IP network is low, there may no longer be an economic advantage for geographically
dispersed service equipment. Telcos and ISPs can centralize or regionalize their enhanced
service platforms to reduce personnel costs and minimize transport costs.
RELIABILITY ISSUES
Note that user demands must be accommodated or the service provider will be overwhelmed.
The system will crash - the antithesis of reliability.
Scalability. In addition to standard requirements for
scalability involving company growth and the changing marketplace, higher levels of
adoption and usage translate to a higher requirement for scalability. With the cost
advantages of a centralized solution, the scalability requirements will be even higher.
Providers must be able to meet these demands when they arise in order to stay competitive.
Availability. Higher levels of scalability translate to
higher requirements for availability. Therefore, as more service providers offer
IP-telephony, they will have to invest to ensure their networks and open-system enhanced
service platforms operate with the same Quality of Service (QoS) and availability as a
PSTN operation.
THE FUTURE
Until now, enhanced service solutions were proprietary. But today companies are building
carrier grade, open-system, Internet-ready enhanced application platforms and applications
- combining innovation with reliability. In addition, new solutions bring all of the
elements that IP-telephony service providers will specifically need: rapid customization,
an architecture which is modular or which can be distributed, and the ability to redefine
scalability with availability. These elements are designed to facilitate the ongoing
changes necessary to promote innovation and ensure reliability in an IP environment.
Pam Thompson is the vice president of marketing for PulsePoint Communications.
PulsePoint Communications develops carrier-grade solutions for progressive and competitive
telecommunication service providers. PulsePoint Communications is headquartered near Santa
Barbara, California, with service and support offices in Europe and Asia. For more
information, contact them at 805-566-2000, or visit their Web site at www.plpt.com.
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