Product Overview; Features - Motorola W220 Service Manual

Product Overview

Product Overview

Features

1. All talk and standby times are approximate and depend on network configuration, signal strength, and features selected.
Standby times are quoted as a range from DRX=2 to DRX=9. Talk times are quoted as a range from DTX off to DTX on.
2. Network, subscription and SIM card or service provider dependent feature. Not available in all areas.
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W220
Motorola W220 mobile telephones feature global system for mobile communications (GSM) air
interface, general packet radio service (GPRS) transport technology, and wireless application
protocol (WAP) Internet browser. The mobile telephone uses a simplified icon and graphical-
based user interface (UI) for easier operation, allows short message service (SMS) text
messaging, and include clock, alarm, datebook, calculator, and caller profiling personal
management tools. The W220 is a dual-band phone that allows roaming within the GSM 900
MHz and digital cellular system (DCS) 1800 MHz.
W220 telephones support GPRS and SMS in addition to traditional circuit switched transport
technologies. GPRS, where available, provides substantial increases in mobile data
communications performance and the efficient use of radio spectrum. Data transmission rates
for GSM networks can potentially increase from the current rate of 9.6 kbps up to a theoretical
maximum of 171.2 kbps. An increased data rate is by no means the only benefit provided by
GPRS. A key advantage is the provision of a permanent virtual connection to the network. This
"always on" connection is possible because GPRS uses packet data transfer so that, for example,
email can be downloaded in "background mode." There is no need for the user to reconnect
before requesting a service, eliminating connection set-up delays and adding convenience and
immediacy to data services access. The "virtual" nature of this connection means that network
resources are not consumed during periods when a user is not actually sending or receiving data.
The telephones are made of polycarbonate plastic. The display and speaker, as well as the 21-
key keypad, transceiver printed circuit board (PCB), microphone, charger and headphone
connectors, and power button are contained within the clamshell form-factor housing. The user-
replaceable 850 mAh Lithium Ion (LiIon) battery provides up to 497 minutes of talk time with
up to 293 hours of standby time
cards which fit into the SIM holder under the battery. These telephones feature a 128 x 128 pixel
high-resolution color graphics display and an internal antenna.
W220 telephones use advanced, self-contained, sealed, custom integrated circuits to perform the
complex functions required for GSM GPRS communication. Aside from the space and weight
advantage, microcircuits enhance basic reliability, simplify maintenance, and provide a wide
variety of operational functions.
Features available in this family of telephones include:
• Lower voltage technology that provides increased standby and talk times
• Extended GSM (EGSM) channels
• Tri-coder/decoder (CODEC) that allows full rate, half rate, and enhanced full rate modes of
transmission
• Supports SMS, concatenated SMS, MMS, instant messaging, and cell broadcast messages
• Supports GPRS, circuit switched, and SMS networks2
• WAP 1.2.1 compliant2
• 128 x 128 pixel 65K color graphical display with 4 lines of text, 1 line of icons, and 1 line
of prompts
• Display animation
• VibraCall® vibrating alert
• 4-way navigation key
• Downloadable wallpapers, icons, animations, and MIDI ring tones
June 22, 2006
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. The phone accepts 3V mini subscriber identity module (SIM)
W220
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