Telia Develops IP-Based GSM Tech
Telia
Develops IP-Based GSM Tech
By Daniel Cheung
December 27, 2000
Telia claims to be the first
telecommunications vendor to bring Internet protocol (IP) -based GSM technology
to market.
While GSM (PCS) cellular
technology is a digital-based wireless system, the data streaming to and from
the mobile uses a different format than IP. This
makes interfacing a GSM network with other IP-based networks something of technical
problem. By developing IP-based GSM, Telia says that it solves this issue, and
effectively brings together data, Internet, mobile and IP telephony under the
same network umbrella.
While this doesn't affect
consumer users of a GSM network, it makes life a lot easier for companies, since
they support almost all of their telecommunications needs using a single network
standard, TCP/IP.
Previously companies needed
to build up different networks for telephony and data.
Telia Bright, the Telia
division handling the new technology, is now working with ABB in Vasteras, Sweden,
to pilot test the new IP-based GSM technology this coming summer. If
everything goes to plan, the technology will be available commercially by the
end of the year.
One of the most interesting
aspects of IP-based GSM is that GSM base stations can be hooked straight into
a company's local area network (LAN), allowing GSM coverage for local traffic.
By using this approach,
fixed telephony traffic is transferred from the company switch to the data network
and external communication goes via the Internet. The
bottom line for company users is that they will have just one phone number,
which works on their deskphone in the office, using the GSM mobile and almost
any other device hooked into the company network using IP standards. In
addition, when using the GSM phone within range of the office's private GSM
base station, calls are routed via the company switch, saving on public wireless
call charges.
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