Lucent Technologies announced yesterday that it has carried out no problem passing a data call to a wireless local area network (WLAN) or WiFi to a UMTS network for third-generation mobile telephony. This means that users of portable computers will be able to surf the Internet and make roaming between the two types of communications infrastructure without interrupting the session.
using a 3 g UMTS network equipment of the company and a notebook equipped with a UMTS mobile phone testing, a WLAN card Proxim Orinoco 802.11 and client/server software Roaming ipUnplugged Gateway, test participants managed to initiate a secure session of Internet in a WLAN or 3 g UMTS network and keep her as they traveled from one network to another.
the test incorporated an industry standard established by the Internet Engineering Task Force (IETF) called Mobile IP, which allows the passage of links between 802.11 technologies of wireless local area networks and 3 g, processes that are essential to maintain the permanent and mobile access to the Internet at high speed. This technique is achieved by the use of a mobile network architecture developed by Bell Labs, Lucent’s laboratories.
the functionality tested by company is dedicated to the business market, especially for employees who require access to substantial volumes of data in terms of mobility. The Lucent showed still roaming capabilities between wireless networks 3 g UMTS and CDMA2000.
The ability to roam between WIFI and 3G networks is part of the wireless marketplace that Cellphoneexplorer recently launched and which will allow customers to access business critical applications such as e-mail, databases and internal Web applications firm-behind firewalls and via wireless networks 3 g UMTS or CDMA2000.