As we head into summer and our first-ever VoIP
Developer Conference, we decided to ask some of the participating event
sponsors to answer a series of questions regarding the VoIP Developer
marketplace, the outlook for the overall VoIP industry, and some of the
things they�re doing in the space. The Q&A session follows below. If you
want to meet with these companies and to ask them more specific questions,
please feel free to look them up at the upcoming VoIP Developer Conference,
being held at the San Jose DoubleTree Hotel on August 3 and 4, 2004. For
more information, visit the conference Web page at
www.voipdeveloper.com.
Aculab
Please describe the state of the market for developers of VoIP products
right now.
The state of the market for developers is pretty secure. The technology has
certainly matured and there is functionality to suit just about every
enterprise or service provider scenario � from low-channel-count host media
processing software through to multi-functional, multi-protocol media
gateways. With IP telephony products being deployed at every layer from core
backbone network infrastructure, through softswitch or media gateway
controller Class 4/5 switch replacements, to media gateways and IP
softphones in the enterprise space, developers are not short of opportunity.
Typical computer telephony applications such as IVR, calling card, pre-paid
services, and ACD can be reinvented by adding or making IP connectivity an
option. Coupled with the increasing consumer confidence in the technology,
developers themselves can be reassured that they will receive a return on
investment � the market has moved out of hype and is now maturing as
adoption rates increase.
What are some of the hottest trends in the VoIP developer arena?
We have certainly seen an increase in customer deployments of IP-based
solutions. Contact centers are definitely a prime area leading the take up
of IP solutions � using it as both a cost saving and profit generating
enabler. With a big drive to reduce call centers cost, evident by the
continuing offshoring movement taking place, using IP is a further way to
reduce call costs � when you compare call charges against TDM. Taking a step
further and turning that contact center into a profit generator is made
possible through the better integration of voice and back office systems and
databases � allowing for smarter ways in which to service customers and
manage calls. The pre- and post-paid calling card market is another sector
in which IP is taking a lead. With telcos offering wholesale VoIP services
to an alternative carrier, the carrier in turn can offer a differentiated
and cost effective service to its subscribers using either H.323 or SIP
phones for their calls.
Please provide a brief look at the latest tools available to aid the VoIP
development community.
Application generators are certainly a useful tool, whether a developer is
new to IP technology or telephony, or simply wishes to focus on the benefits
of the application rather than on the �nitty gritties� at a lower level.
Building block vendors are likely to provide sample code and application
examples to make it easier for a developer to make a start. However, the
provision of training for developers, often overlooked or considered as too
expensive for most budgets, is key. On no account dismiss training � it is
an essential option and the best tool available to aid the development
community.
What do developers who are looking to get
into the VoIP space need to know? What opportunities await them?
There are a number of things to consider, which all equate to good news for
developers. Firstly the growing numbers of service providers offering both
business and residential VoIP imply means developers have a growing target
market to go for. The fact that the number of traditional PBX sales are
decreasing whilst IP PBXs are seeing real growth, again presents further
opportunity to develop and offer IP-based value added services and
applications. From a market perspective, next-generation network operators�
backhaul fiber networks are entirely IP-based. Conversely, established
network operators are now offering new services, provisioned through the use
of next-generation IP-based products and technologies, and also seeking to
migrate to a network infrastructure based on IP. The above is also true, to
a greater or lesser extent, depending on where they are in their cycle of
evolution, of local exchange carriers and service providers. These
organizations are increasingly employing IP telephony alongside conventional
equipment as a means of providing value added services. Where this is
perhaps most pronounced is in deregulating and emerging markets where
carriers require basic voice services that can be deployed quickly with low
entry costs. Finally, on a technology front, host media processing is
allowing the SMEs, who traditionally may not have been able to afford the
benefits of computer telephony, to now do so.
One thing is key and has been echoed many times � the way to sell VoIP
products isn�t to discuss the technology and why IP is better than
traditional networks, etc. Instead, highlight the benefits that the end user
cares about. As discussed before; can it reduce cost, improve productivity,
generate revenue � how is it better than what they have now?
What are some of the things your company is working on today in the VoIP
developer space?
Having been an established player in the VoIP market for some time our
current focus is combining a number of our core technologies. For example
Aculab recently announced our host media processing product, Prosody S.
Prosody S brings to developers all the benefits of our Prosody hardware
platform in a software only solution. In addition Prosody S has been
designed to handle IP calls utilizing a standard NIC card. All this presents
developers with a very cost effective enabling technology for the
development of IP applications.
In your opinion, what does the future hold for VoIP?
The future is VoIP. What is still unknown is when all communications will be
based upon it, or if it ever will, or on something that will evolve out of
the use of IP for multi-media traffic. It is probably true that the entire
worldwide circuit-switched subscriber to subscriber network will never be
entirely based on IP. That is perhaps unnecessary and is certainly so in the
short to medium term. Deploying media gateways and architecting network
infrastructure using a softswitch model will cater for the requisite degree
of convergence. This is good for the market; good for vendors of technology
like media and SS7 signalling gateways, and good for application developers.
Developers have opportunities to create new and improved solutions for
telcos, service providers, systems integrators, telecommunications and
network equipment manufacturers, contact center equipment manufacturers and
enterprises � the list goes on � to thrive and prosper. But regardless of
whether converged TDM and IP networks co-exist for the next 10, 15, or 20
years � or more � you can be sure that VoIP will continue to be a catalyst
for change. Enhancing the way we communicate and interact with each other �
both at home and at work.
� Faye Matthews, Head of Strategic Marketing, Aculab
Intel Corporation
What is the state of the marketplace right now for developers of VoIP
products?
VoIP is taking off in the marketplace. Major analysts now believe that TEMs
are selling businesses more IP than traditional circuit-switched lines. And
almost all PBX and KTS development projects, as well as those for media
servers enabling applications like messaging and IVR, are planning VoIP
capabilities. For developers, this provides a huge opportunity to enter a
fast-growing market segment.
Most service providers are either offering or planning to launch IP trunks
to satisfy the converged voice and data requirements of enterprise
customers. This is leading to new interfaces for existing enterprise
equipment and opportunities to satisfy service provider requirements for
telco-grade VoIP equipment. Service providers are now looking beyond just
business customers to consumers for VoIP revenue. Both a consumer�s home and
home office phone services can be handled by VoIP solutions from new and
established service providers. With VoIP service now delivered directly to
homes and businesses, developers have numerous opportunities to build unique
new VoIP-enabled solutions.
What are some of the hottest trends in the VoIP developer arena?
To uncover VoIP opportunities, it�s important for developers to look beyond
the technology of simple packetized voice to the many new applications this
technology enables. Many of these applications can be deployed both in a
circuit-switched world and on proprietary platforms, but it is often far
less time-consuming and more straightforward to deploy them on open,
standards-based computing platforms.
One hot area right now is wireless telephony for the workplace. Using VoIP
and WiFi enables rapid, cost-effective deployment of mobile telephony.
Contact centers have always been, and continue to be, early adopters of new
voice technologies.
Having voice, fax, and data applications ride on the same network makes
integration simpler, and network management applications can smooth
interactions regardless of the media path a customer prefers.Speech-enabling
the Web is another growing opportunity, made easier when the voice is on the
same network as the Web applications and data. Unified messaging and sales
force automation both help businesses boost productivity and profitability �
and when implemented on converged networks, they do so at a very reasonable
cost. Many applications have rapid financial paybacks, making businesses
more than willing to dedicate portions of their data and voice
communications budgets to implementing them. And opportunities still exist
in developing gateways with packet transcoding for customer premises of all
sizes, and softswitches to control call delivery. Developers need to
consider where their solutions will be deployed � home, office, or network �
since that will impact the reliability requirements, the scale of
deployment, and even the choice of operating system.
Please provide a brief look at the latest tools available to aid the VoIP
development community.
Standards such as SIP and H.323 allow VoIP and other real-time
communications modes to interoperate in a way that encourages rapid market
growth. A robust market for application developer kits (ADKs) for both
telephony and traditional programming facilitates the rapid development of
unique new applications to satisfy business needs. Web-based toolkits from
Microsoft let Windows OS programmers quickly ramp-up voice applications.
Sun�s J2EE application programming environment also provides an abundance of
simple-to-use tools for voice communications in an IP environment. Other
toolkit vendors such as Envox and Intel are making it a more straightforward
task to create converged communications solutions using IP-based protocols.
What do developers looking to get into the VoIP space need to know? What
opportunities await them?
The main thing developers need to understand is that there are real
opportunities today on which they can capitalize using their existing
expertise. It does not matter if a developer�s background is in data and
Web-oriented programming or purely telecom-related. Web-centric developers
can easily learn new voice protocols such as SIP, and today�s application
development tools are similar to the ones they already use. Telephony
developers will continue to find development kits great productivity
enhancers. Clearly, there is a learning curve for both groups. Telephony
developers must learn about active directory services and DHCP protocols and
adjust to IP addressing. Web- and LAN-centric developers have a new media
stream to move across their network, causing them to think about quality of
service issues and new security threats.But the challenge of thinking more
about real-time communications and what they can do with the spoken word is
very exciting � and something developers would never have tried with a mouse
and keyboard. The issue is mastering a new user interface, not mastering new
technical skills.
What are some of the things your company is working on today in the VoIP
developer space?
Intel has recently released a new version of Intel NetStructure Host Media
Processing (HMP) Software, which allows developers to deploy VoIP solutions
using only software building blocks and benefit from the ever-increasing
power of the Intel Pentium Processor for handling media processing tasks.
HMP software can also shorten time-to-market for solution developers and
lower total cost of ownership for system owners.
Intel offers small gateways for translating between traditional analog
telephony or proprietary digital PBX lines and VoIP standards, allowing a
smooth transition from the legacy voice communications environment to the
next-generation VoIP infrastructure.
And Intel has recently added capabilities to its Intel NetMerge Call
Processing Software so that data from computer systems and telephone systems
can be shared seamlessly in VoIP or circuit-switched networks, allowing
greater flexibility in call routing and other critical functions.
In your opinion, what does the future hold for VoIP?
The future of VoIP holds the promise of tremendous growth for developers and
of enhanced productivity and a competitive advantage for end users. Because
VoIP is a technology that enables a remarkably wide array of applications
and solutions, it can allow the telecom market to move ahead rapidly to meet
future customer demand. Some day soon, I believe that VoIP will be at the
core of nearly all our voice communications. Then we will be discussing
video, which presents technical challenges for packet networks but has the
potential to enable new revenue streams and more efficient business
processes � just like voice!
� Jim Machi, Director of Product Marketing, Network Building Block
Division, Intel.
NMS Communications
Please describe the state of the market for developers of VoIP products
right now.
Typically new technologies remain in incubation for years � possibly decades
� before wide adoption. But those that succeed eventually do hit the
mainstream, at which point they get adopted fairly rapidly. The good news is
that after more than eight years of incubation, one VoIP market segment,
enterprise VoIP � specifically IP-PBXs and IP Centrex � reached mainstream
status in 2003. Given typical PBX replacement cycles (seven+ years), it�s
likely to take a decade to replace most PBXs, but the transition has finally
started and it�s creating numerous opportunities for developers. On the
other hand, consumer VoIP (services like Vonage or Skype) remain in
incubation. However, judging by recent announcements from major players like
AT&T, we may look back on 2004 or 2005 as the turning point for Consumer
VoIP � the point where adoption went mainstream.
What are some of the hottest trends in the VoIP developer arena?
The hottest trends in the VoIP developer arena are IP-based call centers
using VoIP for local and remote agents and providing rich support for caller
self-service, i.e., Web, VoIP-based IVR, e-mail, SMS, and even WAP.Please
provide a brief look at the latest tools available to aid the VoIP
development community.
The latest tools include the following:
� HMP (host media processing) products that provide a common API for
applications that need to support both VoIP and traditional telephony
environments;
� Scripting languages, like VXML, that facilitate rapid development of
subscriber self-service systems, like VoIP voice responses systems;
� MRCP (media resource control protocol) that provides a common framework
for integrating speech recognition technologies into VoIP applications; and
� Open-source VoIP software, like SIPxchange, that can be leveraged to
provide elements of a larger solution.
What do developers who are looking to get into the VoIP space need to
know? What opportunities await them?
Unfortunately, most of the mainstream IP-PBX systems pay lip service to
standards like SIP, but still rely on proprietary protocols (like Cisco�s
�Skinny� for their IP telephones). The good news is that most vendors also
support standard protocols and, in the world of VoIP, there are many more
ways to provide new services on top of basic VoIP installation than was ever
the case with traditional PBXs.
What are some of the things your company is working on today in the VoIP
developer space?
NMS is currently working on MRCP, HMP, Modular Service Components (Media
Servers, Signaling Servers, Video Servers), VXML, next-gen IP conferencing
capability (both audio and video), multi-modal application development
environments (tools to support combined voice, video, Web, WAP, e-mail and
SMS user interfaces based on user preferences).
In your opinion, what does the future hold for VoIP?
VoIP is a platform for additional forms of communication that will replace
and/or completely transform traditional telephony. We are already seeing
some new forms of communication which improve on traditional telephony. For
example:
� Voice chat versions of the instant messenger (IM) paradigm; and
� Virtual conferences where multi-party communication is assumed and
two-party communication means you�ve only added one other party to your
always-on personal conference.
In the future, we will also see voice, video, and text chat integrated into
numerous IT applications. While many workflows will still be based on the
store-and -forward paradigm, when immediate communication can improve a
workflow, an integrated combination of IM and VoIP will be embedded in the
IT application.
� Brough Turner, Chief Technology Officer, NMS Communications
Inter-Tel, Inc.
Please describe the state of the market for developers of VoIP products
right now.
The market is in a transition phase currently. Many companies recognize the
need for VoIP products, but the marketplace is just warming up to VoIP
advantages/opportunities. More and more developers are learning about VoIP
technology in order to deliver high-quality products in a volatile
environment.
Almost all telecom and many other software application companies are
utilizing VoIP products to some degree. There is a large demand for
developers that can stay current on the rapidly-changing VoIP standards.
What are some of the hottest trends in the VoIP developer arena?
The hottest trends involve networking via IP/VoIP networks to reduce cost
and using IP phones to utilize existing data networks for voice and
eliminating the need for analog/digital wiring. With the advent of VoIP, it
opens the door for many new and exciting products and opportunities.
Please provide a brief look at the latest tools available to aid the VoIP
development community.
WAN simulators, network sniffers, a variety of firewalls/NATs, and an
assortment of devices from other vendors are requirements for quality and
interoperability testing.
What do developers who are looking to get into the VoIP space need to
know? What opportunities await them?
One of the biggest knowledge gaps is probably in the numerous protocols that
exist in the VoIP world. Since the market has not decided on any one
standard, developers are forced to understand all of the various protocols
and try to develop products that interoperate/communicate with existing
products/voice networks.
In your opinion, what does the future hold for VoIP?
VoIP shall certainly have a place in the future. Voice quality shall improve
as networks become more robust and devices become increasingly tolerable to
adverse conditions. Improved quality, increased feature capabilities, and
access to lower-cost VoIP service providers should bring about more
widespread use of VoIP technology.
� Brady Barnes, Vice President of Engineering, Converged Systems Group,
Inter-Tel
Clarus Systems
Please describe the state of the market for developers of VoIP products
right now.
The market conditions are excellent, both subscriber VoIP and IP telephony
are enjoying accelerating traction. Metcalf�s law is clearly evident, as the
tangible benefits of IP telephony are becoming increasingly apparent as more
people adopt the technology. It�s clear we�re only scratching the surface of
the benefits.
What are some of the hottest trends in the VoIP developer arena?
Obviously any kind of productivity related application that leverages the
benefits of IP telephony, in particular, applications bringing the notion of
presence to the telephony experience. Among other hot trends right now, are
applications that simplify the ownership of VoIP itself.
Please provide a brief look at the latest tools available to aid the VoIP
development community.
As the technologies mature, so we�re seeing broader API support for IP PBXs
and associated VoIP technology. Additionally �new generation� technologies
such as Web services and XML are making these APIs easier than ever to
adopt. Application developers themselves, Clarus Systems included, are also
building these APIs into their applications too, so their APIs can become an
extension of the equipment vendors.
What do developers who are looking to get into the VoIP space need to
know? What opportunities await them?
VoIP developers need a keen appreciation of the various markets that VoIP is
addressing, in particular an understanding of the differences between
carrier and service provider VoIP solutions, and Enterprise IP telephony.
What are some of the things your company is working on today in the VoIP
developer space?
Clarus Systems develops a management solution that enables companies to
deploy, validate, and assure the availability of IP telephony solutions, and
the applications running on them. Clarus� product ClarusIPC leverages the
APIs of IP PBX manufacturers to enable the pro-active testing of available
resources.
In your opinion, what does the future hold for VoIP?
VoIP will be ubiquitous. In some cases the impact will not be visible, VoIP
will simply facilitate efficiencies and cost benefits. In other cases it
will radically change the way many people do business today, and enable
applications as yet unimagined.
� Richard Whitehead, CTO of Clarus Systems
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