Dialogic recently announced an implementation of a real-time Internet fax standard.
Dialogic has added T.38 (formerly known in the ITU as T.Ifax 2), a new real-time fax
coder, to its DM3 IPLink line of products. DM3 IPLink is a complete, H.323 standards-based server development platform for
building IP telephony solutions.
T.38 includes contributions from the United States and Israel. The initial proposal
from RadLinx and follow-up work from Dialogic,
Brooktrout, and Lucent, resulted in a working document that is
slated for discussion and possible approval at the June, 1998, ITU meeting. While previous
standards efforts focused on X.25 networks, T.38 is the first true standard for sending
faxes in real time over IP networks. T.38 has been selected as the fax coder within the
H.323 IP Telephony Call Control Standard, thus ensuring interoperability with other
Dialogic recently demonstrated the technology. The demo included two fully operational
H.323 Internet telephony gateways. A voice phone call placed from the handset of a fax
machine was connected over the IP network using a G.723.1 voice coder. When the fax
transmission started, the H.323 gateway immediately detected the fax tone, selected the
T.38 fax coder, and delivered the fax in real time. At the end of the transmission, the
call was returned to voice mode. It works.
Because T.38 fax is handled within the H.323 framework as simply another coder type,
anyone currently using the DM3 IPLink solution needs only a software upgrade to enhance
their solutions to include fax support no application modifications are necessary.
Customers building IP telephony gateways for corporate and telco markets will be able
to provide a universal port supporting real-time voice and real-time fax on the same port,
and even on the same call.
DM3 IPLink products are standards-based, real-time IP voice and fax solutions built on
Dialogics DM3 Mediastream architecture. The ultra-high density DM/IP3030c enables a
480-port IP telephony chassis (eight boards with sixty ports), which can be PCI-,
CompactPCI-, or VME-based.
As a result of the T.38 implementation, Dialogic can offer a truly powerful solution
for corporate and carrier- class IP telephony needs. DM3 provides a powerful platform to
develop and deploy both IP telephony and messaging-based CT solutions. DM3 is scalable
from the low-density, four-port analog solution up to the QuadSpan Series, providing 96 to
For more information, call Dialogic at 973-993-3000 or visit the companys Web
site at www.dialogic.com.