Microsoft
Here are some of the key reasons why you would want to run Unified Access Gateway with DirectAccess.
Tech Specs: Wide Area Wireless Packet Data Services
June 24, 2002 12:00 PM ET
Computerworld -
TECHNOLOGY
ADVERTISED DATA RATE (K BIT/SEC.)
INITIAL ROLLOUT
AT&T Wireless Services Inc.
GSM/GPRS
20 to 40
June 2001
EDGE
Up to 150
June 2001
Bell Mobility
CDMA2000 1X
Up to 86
March 2002
Cingular Wireless
GSM/GPRS
20 to 40
June 2002
EDGE
Up to 150
January 2003
Nextel Communications Inc.
IDEN
30 to 50
January 2003
Sprint PCS Group
CDMA2000 1X
50 to 70
Summer 2002*
Verizon Communications
CDMA2000 1X
60 to 80
January 2002
VoiceStream Wireless Corp.
GSM/GPRS
40
November 2001
* Service will launch with nationwide coverage
All of the enhanced wide-area wireless services offer a digital, packet-switched architecture that features continuous connectivity and faster speeds. But the underlying technologies differ, which limits interoperability and could affect coverage. Those technologies include the following:
CDMA2000: The successor to the Code Division Multiple Access standard, CDMA2000 may eventually support speeds up to 2.4G bit/sec. The first generation, called CDMA2000 1x, calls for speeds up to 144K bit/sec., but vendors claim typical speeds of 50K to 80K bit/sec.
EDGE: The standard known as Enhanced Data Rates for GSM and TDMA/136 Evolution has a maximum data rate of 384K bit/ sec. Vendors claim initial end-user rates of up to 150K bit/sec.
GPRS: General Packet Radio Service is the successor to the Global System for Mobile Communications, a popular European standard. The maximum data rate is 144K bit/sec., but vendors advertise end-user speeds of 20K to 40K bit/sec.
IDEN: Nextel Communications added compression to Motorola Inc.'s Integrated Digital Enhanced Network data network service to increase the data rate to 56K bit/sec. via a new modem card. Nextel is considering offering a CDMA2000 1x service as an upgrade path.
Read more about mobile and wireless in Computerworld's Mobile and Wireless Knowledge Center.
Mobile/Wireless
Additional Resources
Microsoft
Review how one energy firm tightened protection and simplified IT work using business-ready security solutions.
Sybase
In this white paper, IDC analyzes the role of next-generation mobile enterprise platforms as organizations seek a more strategic deployment of mobile solutions.
Learn the important issues you must consider before starting your next mobility initiative. Get your mobility white paper from IDC now, compliments of Sybase.
Learn the important issues you must consider before starting your next mobility initiative. Get your mobility white paper from IDC now, compliments of Sybase.
White Papers & Webcasts
Accelerating Your Mobile Workers: Controlling the Uncontrollable
Today's workforce is truly mobile. Unlike the managed environment of the office LAN, remote users face many challenges to being productive while out...
eGuide: Enterprise Security
Smart Security Strategies for 2010. Read now!
Managing Laptops Outside the Office
Learn how you can reduce costs by tracking mobile computers no matter where they are located.
How to Improve Remote User Satisfaction and Maximize ROI by Using SSL VPNs
Download this white paper today!
Mobile U Webinar
Watch Now!
The New Mobile Order
Download Now
4G Ahead Video Program
Uncover the features and benefits of the two leading 4G technologies for enterprises considering future deployment.
WAN Application Delivery for Executives
Learn how to simplify server and application administration without creating performance problems for distributed users.
Horror stories: Managing IT Across Multiple Locations
How one extra sharp IT manager eliminates daily agony, hassle and repetition.
Computerworld Reports
Sign up to receive updates on the latest Mobile and Wireless resources
