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hw6960
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HP hw6920, hw6910, hw6940, hw6960 White Paper

HP iPAQ and GSM/GPRS/EDGE Technology
Abstract.............................................................................................................................................. 2
Introduction to GSM/GPRS/EDGE......................................................................................................... 2
GSM .............................................................................................................................................. 2
SIM Cards................................................................................................................................... 2
GPRS.............................................................................................................................................. 3
EDGE ............................................................................................................................................. 3
Notes ............................................................................................................................................. 3
HP iPAQ GSM/GPRS/EDGE Phone and Data Connection ....................................................................... 3
HP iPAQ GSM/GPRS/EDGE Features.................................................................................................... 4
Automatic Frequency Band Selection.................................................................................................. 4
GSM/GPRS Settings Manager .......................................................................................................... 4
Synchronizing with Microsoft ActiveSync ............................................................................................ 4
Flexible Syncing Solutions ............................................................................................................. 4
Receiving Phone Calls during Data Connection....................................................................................5
Summary ............................................................................................................................................ 5
Glossary............................................................................................................................................. 6
For more information............................................................................................................................ 7
Call to action ...................................................................................................................................... 7
Abstract
The HP iPAQ hw6900 and hw6500 Mobile Messenger series offer integrated GSM/GPRS technology. The HP iPAQ hw6900 and hw6500 series also integrate EDGE capability. (Users will need to subscribe to a wireless service to use these integrated features.)
Introduction to GSM/GPRS/EDGE
GSM technology is typically used for voice calls and text messaging, while GPRS/EDGE technology provides a connection to the Internet that can be used for web browsing, multimedia messaging service (MMS) messaging, or accessing a corporate network. With GSM/GPRS/EDGE, users can retain connectivity outside of a local area network (LAN).
GSM
Global System for Mobile Communications (GSM) is a digital cellular phone technology based on time division multiple access (TDMA) technology. GSM is a circuit-switched system that divides each 200 kHz channel into 8 time slots. Whereas TDMA defines only the air interface, dividing radio frequencies into time slots and then allocating slots to multiple calls, GSM defines the entire cellular system. GSM operates in the 900MHz and 1800MHz bands in Europe, and 1900MHz and 850MHz PCS bands in the U.S.
GSM has become the wireless communications standard for more than half of the world’s mobile phones. Today, it is the most popular standard for mobile phones with more than 250 million mobile phones operating with GSM technology.
The ubiquity of the GSM standard makes international roaming possible. As long as the subscriber’s mobile phone supports the GSM band used in the specified country. Subscribers are able to use the same mobile phone in many parts of the world. Frequency bands differ around the world. In the U.S., two (dual) of the available four (quad) bands are used. The HP iPAQ hw6900 and hw6500 Mobile Messenger series support four bands to increase the available phone service coverage. To get additional information about roaming and how it works, visit this web site:
http://www.gsmworld.com/roaming/how_roaming_works.shtml.
In addition to high quality mobile voice and data services with worldwide roaming capabilities, GSM provides support to SMS and MMS messaging. SMS is capable of sending and receiving text messaging up to 160 characters in length. MMS is capable of sending graphics, video clips, and sound files.
SIM Cards
GSM phones use a Subscriber Identity Module (SIM) smart card containing user account information. Each SIM card contains a computer chip with information about the user’s phone number, service, registration information and contacts. By installing the SIM card into any GSM phone, it is immediately programmed with the appropriate account information. SIM cards make it easier to rent or borrow GSM phones because user information can be swapped in and out quickly.
SIM cards can also be programmed to display custom menus for personalized services. SIM cards also contain the memory to store speed dial numbers and text messages.
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GPRS
General Packet Radio Service (GPRS) is an enhancement to the GSM mobile communications system that supports transmission of data packets. GPRS is capable of running at speeds up to 115 kilobits per second and enables continuous flows of IP data packets over the system. Current GSM systems are capable of running only 9.6 kilobits per second.
GPRS makes efficient use of limited bandwidth and is especially suitable for sending and receiving data, whether in small bursts like e-mail and web browsing or large volumes like file transfers. GPRS technology offers broad high-speed connectivity and access Internet-based content, e-mail messages, and text messaging.
EDGE
EDGE is an enhancement to GPRS technology that enables higher speed data connections up to 384 kilobits per second. EDGE provides faster phone multimedia capabilities, like sending and receiving SMS/MMS messages and sharing video clips. EDGE is rapidly becoming a global standard for wireless wide-area data communication.
Users’ individual service providers may or may not support EDGE technology. If the user’s service provider does not support the EDGE network, the HP iPAQ automatically switches to GPRS data transfer rates, providing a seamless mobile experience and widespread access to Internet-based content and data services worldwide.
Notes
HP iPAQ devices are equipped to allow users to take advantage of GSM/GPRS/EDGE technology. However, users must arrange for GSM/GPRS/EDGE services separately with service providers. Service providers can supply information about availability and coverage in particular areas. Data transmission and download speeds may vary based up on network capabilities and other conditions. GPRS/EDGE data services may be subject to an additional charge beyond standard GSM mobile phone service.
For more information, refer to the specifications listed for individual products at:
http://www.hp.com/go/iPAQ.
HP iPAQ GSM/GPRS/EDGE Phone and Data Connection
GSM/GPRS/EDGE technology offers users more than the ability to make and receive telephone calls. HP iPAQ devices offer a comprehensive set of wireless capabilities to keep users connected in or out of the office. With GSM/GPRS/EDGE integrated into a single HP iPAQ, users have broad coverage offering high speed access to the Internet as well as business and personal information.
HP iPAQ devices offer the following connectivity options:
• Use the integrated GPRS/EDGE technology to connect to a Virtual Private Network (VPN) or to
remotely connect to a mobile Internet Service Provider (ISP).
• Make a wireless GSM/GPRS/EDGE connection to place a phone call, send or receive e-mail or
send SMS/MMS messages.
To send or receive data over a GSM/GPRS/EDGE network, users must have an account with a mobile phone service provider that supports GSM/GPRS/EDGE data services and an activated SIM card. The following features are supported on HP iPAQ devices but must be activated by users’ individual mobile phone service providers:
• Call forwarding
• CSD—Circuit Switched Data
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