INTERNET TELEPHONY EXPO was a great
learning experience not only for the few thousand attendees who came to soak up some
knowledge (and a little sun) at the beautiful Hotel del Coronado, but also for this
associate group publisher. I discovered a number of innovative products and solutions that
Id like to share with you some of which slipped under my radar
screen
well, almost.
MORE IP PHONE GOODIES
In last
months Mind Share column, I wrote about the new crop of IP phone DSP-based
building blocks being developed to help speed up the time-to-market for such devices. I
believe the opportunity for these new phone sets will be quite big especially as
the DSL and cable modem access markets take off, and enterprise users start to snatch up
IP-enabled phone system gear. Here are a couple of additional products (both Internet
Telephony Expo Best of Show award winners by the way, see page 48) that promise to make a
sizeable impact in this area.
8x8s IP Telephone On A Chip
The Audacity-T2 IP Telephone Processor from 8x8
combines all of the digital processing circuitry required for a full-function, multi-line
IP telephone on a single chip. 8x8 also provides OEMs with all of the control protocol
stacks and audio codecs required for IP telephony systems, including H.323 v2, Media
Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), G.711, G.723.1, G.726
and G.729a. The T2 Processor can run two simultaneous calls using any of the supported
codecs while executing full-duplex echo cancellation algorithms and a control protocol
stack. The audio codec and control protocol software supplied by 8x8 was specifically
written for Internet appliance applications rather than PCs, enabling high
performance and allowing for a small memory footprint compared to solutions originally
targeted at PCs and PSTN gateways.
The T2 Processor is built around 8x8s MIPS-X5 unified RISC CPU/DSP engine, which
is designed to run both compiled C code and DSP algorithms efficiently. In
addition to the CPU/DSP engine, the T2 Processor incorporates a 32-channel DMA engine and
a non-blocking crosspoint switch with 6.4 gigabytes per second of cross-sectional memory
bandwidth to ensure optimal system performance. Sufficient on-chip memory is provided to
eliminate the need for external RAM when running any supported communication protocol or
codec.
The Audacity-T2 Processor also incorporates dual Ethernet Media Access Controllers
(MACs) one for connecting to a network, and one for connecting to a computer. The
inclusion of MAC functionality allows an IP telephone to serve as a two-channel layer-2
Ethernet switch, eliminating the need for two Ethernet connections to the desktop. This
switch facility can be programmed to give priority to audio packets, buffering data
packets to and from the attached PC, thus controlling quality of service (QoS). The MACs
are full duplex and support both 10 and 100 Mbps data rates.
To eliminate the need for expensive glue logic, the T2 Processor connects directly to
network physical layer chips, keypads, and character display devices. Two TDM (time
division multiplexed) ports provide multi-channel synchronous interfaces for audio data,
permitting connection to a telephone handset, or a microphone and speaker (for
speakerphone implementations).
More salient details: The T2 Processor is packaged in a 176-pin, thin quad flat package
(TQFP). The chip is manufactured in a 0.18-micron, 1.8-volt CMOS process with 3.3-volt
interfaces. The chip dissipates an estimated 0.25 watts in full operation.
To help OEMs get to market quickly, 8x8 has developed a complete IP phone development
kit. The kit includes two fully operable IP feature phone prototypes, a developers
version of 8x8s IntraSwitch IP-PBX server software, and all of the documentation
required to build the phones (schematic, bill of materials, etc.). To allow developers to
easily customize and differentiate their products, 8x8 provides source code for the user
interface and device drivers, as well as a complete development environment, including a
compiler, a debugger, and diagnostic software. The resulting package includes everything,
from the chip to the software tools, needed to quickly and easily bring cost-effective,
high-quality IP phones to market.
Samples of the Audacity-T2 IP Telephone Processor (ask for part number 8x84700), as
well as software development tools and IP telephone design examples, are available as
Im typing. The T2 Processor is priced at $15 in 100,000-unit volumes (hear that TI
and Lucent?)
Tundos FREE IP Phone Software Offer And Distributed Open Telephony
Operating System
Were talking open, embedded software for IP phones from an aggressive new
player in the open network telephony system arena, and best of all, the price
is right. Tundo Corporation, pronounced
Tun-doo and based in Cambridge, MA, is giving away a royalty-free version of
The Tundo Distributed Open Telephony Client (or DOT-Client). The DOT-Client software is a
key component of Tundos Network Telephony System. It provides the client
intelligence of the Tundo Telport, which is an intelligent telephony client device. The
Tundo Telport connects todays standard telephones directly to an Ethernet network,
converting voice information to IP packets.
This offer from Tundo complements the recent announcement of the DOT-OS
Tundos new Distributed Open Telephony Operating System. Tundo DOT-OS is a patented
framework that delivers extremely high system capacity and the ability to develop and
deploy new applications, with the high level of reliability and fault tolerance required
by mission-critical business operations. DOT-OS, according to Tundo, can scale beyond
100,000 users per server, and allows Tundo gear to integrate with legacy voice systems and
best of breed applications to leverage an existing telecommunications investment while
providing a smooth evolution to IP telephony. The system is available for enterprise
customer deployments as well as providing a service delivery platform for the new breed of
network service providers. Initial applications for DOT-OS target communications intensive
operations, such as call centers and financial services, reliant on the real-time
mission-critical interaction of voice calls and related data. The Tundo solution has been
tested at a number of beta sites, including the Boston Stock Exchange, where the system
has been operational since June.
The Tundo design uses open standards such as H.323, H.450, HTTP, CSTA, and SNMP to
support components from multiple vendors, system interworking, and applications
integration. This gives customers and developers a great deal of flexibility in creating
solutions that can build on customers existing legacy telecom infrastructure and IP
networks to lower operating costs and increase functionality. As the system is designed to
support open standards such as H.323 and MGCP, customers can make use of gateways,
endpoints, and phones from other standards-compliant vendors. As a supporter of open
interworking, Tundo is also a member of the iNOW! Interoperability Initiative.
The underlying capabilities delivered by the new telephony operating system include:
- Tundo DOT-Server a patented software platform utilizing distributed
servers for mission-critical applications. Running on Windows NT, the server supports
standard voice telephony features as well as new capabilities enabled by packet networks.
- Tundo DOT-FrameWork a software development environment that allows
developers to easily integrate existing voice applications (including ACD, IVR, and voice
mail) and new native network-based applications with the Tundo DOT-OS. With the
DOT-Framework, developers can now confidently design mission-critical, fault tolerant
telephony applications.
On the hardware side, the Tundo Network Telephony System (NTS) is a complete IP-PBX,
consisting of the Tundo DOT-OS and the following components:
- Tundo TelPort intelligent telephone access device to connect standard
telephones and headsets to the IP network via an Ethernet interface.
- Tundo JPhone an optional Java PC-based application that simulates a
smart telephone, which associates a users PC with a selected phone and
headset.
- Tundo Conference Unit a multipoint processor which supports conferences
among four or more callers.
- Tundo Gateway enables voice applications to interface with existing
circuit-switched PBXs and public telephony networks via analog or channeled E1/T1 digital
lines.
Marc Robins is Associate Group Publisher
for INTERNET TELEPHONY AND CTI magazines. His column, Mind Share, appears monthly in
the pages of INTERNET TELEPHONY magazine. Marc looks forward to your feedback. |