Also of interest: (Reprinted without BW approval)
( BW)(VOCAL-TECHNOLOGIES) Fax-Over-IP Software Now Available from VoCAL Technologies
ÿÿÿÿBusiness Editors/Technology Writers
ÿÿÿÿBUFFALO, N.Y.--(BUSINESS WIRE)--June 2, 1998--
ÿÿÿÿDSP-based solution complies with emerging ITU Recommendation
ÿÿÿÿT.38. Integrates standard Group 3 facsimile machines to IP
ÿÿÿÿnetwork. Compatible with H.323 and Voice-over-IP.
ÿÿÿÿVoCAL Technologies today announced a software solution for sending
real-time fax messages over public or private IP networks, including the Internet.ÿÿThe VoIPfax Software Library is fully compliant with the ITU's emerging Recommendation T.38, the international standard for messages and data exchanged between facsimile gateways connected via an IP network. VoIPfax is intended for corporate and enterprise-wide server networks and can handle all North American and international telephony standards. VoIPfax is targeted at equipment OEMs in the telephony, ISP, LAN/WAN networking, and corporate remote access markets.
ÿÿÿÿVoIPfax is a full-featured library. The software runs on
high-performance DSPs to provide robust, enterprise-ready solutions.
Depending on the exact configuration of voice and fax functionality
chosen, multiple communications ports may be supported on a single DSP
chip.
ÿÿÿÿVoIPfax supports the full range of Group 3 modulations, including
V.21, V.27ter, V.29, V.17 (up to 14,400 bps trellis coded modulation),
and V.34fax (up to 33,600 bps), as well as both the TCP/IP and UDP/IP
modes of data transmission called out in Recommendation T.38. VoIPfax
also gives customers a range of performance options by allowing them to
select the type and amount of redundant information for UDP/IP services.
ÿÿÿÿVoIPfax complements VoCAL's other IP-centric products, including the
company's H.323 multimedia software stack, Voice-over-IP solution, and
H.323/H.324 gateway. The software includes key routines for voice/fax
distinction. When combined with VoCAL's Voice-over-IP software, VoIPfax
enables customers to build a seamless voice/facsimile relay operation
from call startup to disconnect.
ÿÿÿÿVoIPfax is also compatible with VoCAL's Group 3 facsimile
store-and-forward modules as well as traditional facsimile data modem
and computer telephony libraries. The combination is a powerful
foundation platform for the next generation of communications servers,
devices that will handle voice, video, data, and fax transmissions over
the switched telephone network as well as public and private IP
networks.
ÿÿÿÿT.38 is the ITU Recommendation which specifies the messages and data
exchanged between facsimile gateways connected via an IP network. In a
typical configuration, both sending and receiving fax machines will be
connected over the public switched telephone network (PSTN) to gateway
devices. The receiving gateway and sending gateway are connected through
an IP network using either TCP/IP or UDP/IP. Once the PSTN calls are
established on both ends, the two Group 3 terminals are virtually
linked. The IP network is made transparent by the gateways. Hence the
Group 3 devices can follow the normal T.30 procedures. T.38 also
supports direct connection of a T.38-compliant device such as a PC or
server directly to the IP network; no gateway need be involved.
ÿÿÿÿVoIPfax complements two other solutions in the IP telephony space
announced by VoCAL in recent weeks. VoVoIP is a software kit which
includes components for proprietary and industry standard (H.323) voice
over public or private IP networks. VoVoIP integrates all the functions
needed to implement a corporate or enterprise Voice-over-IP system,
including crucial telephony functions such as voice coding, line echo
cancellation, DTMF detection/generation, and call progress
detection/generation. The software supports all the major ITU voice
coders, allowing users a choice of voice quality vs. bandwidth vs.
compute complexity as well as G.729B "silence detection and comfort
noise generation".
ÿÿÿÿVoGWY is a fully-compliant H.323 software stack optimized for
Voice-over-IP applications as well as audio visual telephony. VoGWY
supports real-time audio/video communications between H.323 LAN-attached
users and users with H.324 PSTN (analog telephone) based terminals.
VoGWY also supports voice communications between ordinary telephones on
the PSTN and H.323-compliant, LAN-attached telephones and PCs.
ÿÿÿÿAll VoCAL software is designed to operate on today's high
performance DSP chips, making multiline systems and enterprise solutions
low-cost and technically superior.
ÿÿÿÿVoIPfax is available directly from VoCAL Technologies. Available
immediately is a version of the software which has been optimized to run
on Analog Devices' ADSP-218X family of fixed point digital signal
processor chips. Versions running on other DSPs are under development.
Pricing and licensing are designed to meet a variety of OEM needs. VoCAL
also provides hardware reference designs, custom software services,
integration services, and full warranty support.
ÿÿÿÿVoCAL Technologies is a technology house providing OEM accounts with
custom software development and hardware/software integration expertise.
The company has hundreds of man-years experience in the telephony and
computer telephony industry and is a worldwide leader in DSP software
solutions. VoCAL offers a wide range of fax, voice, video, data, and
telephony functions for analog and digital communications networks.
VoCAL is a key technology partner with Analog Devices and offers a full
range of communications-oriented software modules for Analog Devices'
DSP product line.
ITU References:
T.30 Procedures for document facsimile transmission in the General
Switched Telephone Network
T.38 Procedures for real-time Group 3 facsimile communication between
terminals using IP networks. (not yet determined)
H.323 Visual telephone systems and equipment for local area networks
which provide a non-guaranteed quality of service.
--30--azs/sf*
CONTACT: VoCAL Technologies Ltd.
David Jamieson, 716/688-4675
vocal.com
KEYWORD: NEW YORK
INDUSTRY KEYWORD: COMED COMPUTERS/ELECTRONICS TELECOMMUNICATIONS
INTERACTIVE/MULTIMEDIA/INTERNET PRODUCT |
