=>Mobile Phone Glossary(5)

PDC
Personal Digital Cellular: the 2G TDMA-based protocols used in Japan, owned by NTT DoCoMo. PDC services operate in the 800 and 1500 MHz bands. PersonalJava A Java platform optimized for the requirements and constraints of mobile devices. Platform A set of technology, which acts as a foundation for real-world applications, or higher-level platforms.

Symbian
OS includes C++ APIs, a leading Java implementation, an application suite and integration with wireless and other communications protocols. Polyphonic Ringtones Todays poly ringtones are almost as good as the original records, the quality gets better all the time due to continuous improvement in mobile phone audio technology. Most modern mobile phones with play 16 track tunes. Whilst the early mobile phones that would only play monophonic sounds are still around it is only a matter of time before all mobile phone manufacturers produce handsets that play polyphonic tones. Polytones sound good and most hits are available to be transmitted in stereo to give up to 40 different notes playing at a time. Quartz Code-name for a tablet-like, quarter-VGA portrait screen size, pen-based, reference design. Reference design User interface designs for Symbian OS delivered to Symbian licensees Service provider A company that provides mobile phone users with services and subscriptions to mobile phone networks.

SIM
Subscriber Identity Module. The SIM card is the smart card inserted inside all GSM phones. It identifies the user account to the network, handles authentication and provides data storage for basic user data and network information. It may also contain some applications that run on a compatible phone (SIM Application Toolkit). Smartphone A generic name for voice centric mobile phones with information capability. The Ericsson R380 Smartphone is an example of such a Symbian OS phone. SMS Short Message Service: available on digital GSM networks allowing text messages of up to 160 characters to be sent and received via the network operator's message center to your mobile phone, or from the Internet, using a so-called "SMS gateway" website. If the phone is powered off or out of range, messages are stored in the network and are delivered at the next opportunity. Symbian Connect The PC-based Symbian Connect is a system for data synchronization, file management, printing via PC, application installation from a PC, and other utility functions allowing Symbian OS phones to integrate effectively with PC and server-based data. Symbian Developer Network The developers' support network for Symbian OS, where you will find all the resources to enable you to develop world-class applications for Symbian OS phones. Symbian OS Symbian's advanced open standard operating system for data enabled mobile phones. It includes a multi-tasking multithreaded core, a user interface framework, data services enablers, application engines and integrated PIM functionality and wireless communications.

SyncML
Synchronization Markup Language, an industry-wide effort to create a single, common data synchronization protocol optimized for wireless networks. SyncML's goal is to have networked data that support synchronization with any mobile device, and mobile devices that support synchronization with any networked data. The SyncML structured data layer will use XML wherever appropriate. SyncML is intended to work on transport protocols as diverse as HTTP, WSP (part of WAP) and OBEX, and with data formats ranging from personal data (e.g. vCard & vCalendar) to relational data and XML documents. The SyncML consortium was set up by IBM, Nokia and Psion among others. Symbian is a sponsor of the SyncML consortium.

TACS
Total Access Communication System: a British 1G analog mobile telephone standard based on the US AMPS system. It was later adopted in other countries including Hong-Kong and Japan. TDMA 1. Time Division Multiple Access: a digital wireless telephony transmission technique. TDMA allocates each user a different time slot on a given frequency. GSM, D-AMPS, PDC and DECT use TDMA in one form or another. 2. A name generally used for D-AMPS. TDMA networks are operated in the US, Latin America, New Zealand, parts of Russia and Asia Pacific.

UMTS
Universal Mobile Telecommunications Service, part of the IMT-2000 initiative, is a 3G standard supporting a theoretical data throughput of up to 2 Mbps. First trials started in 2001. It should be rolled out in most of the world by 2005.

Unicode
A 16-bit character encoding scheme allowing characters from Western European, Eastern European, Cyrillic, Greek, Arabic, Hebrew, Chinese, Japanese, Korean, Thai, Urdu, Hindi and all other major world languages, living and dead, to be encoded in a single character set. The Unicode specification also includes standard compression schemes and a wide range of typesetting information required for worldwide locale support. Symbian OS fully implements Unicode. vCalendar Defines a transport- and platform-independent format for exchanging calendar and schedule information so that any vCalendar-compliant application can send or receive calendaring and scheduling information to or from any other vCalendar-compliant application. For instance, users with mobile phones running vCalendar-aware applications can schedule meetings automatically over an infrared link or via sending an SMS. vCard Standard defining the format of an electronic business card. All devices supporting vCard can exchange information such as phone numbers and addresses. For instance a user with a vCard-aware phonebook application on a handheld computer can easily transfer names and phone numbers to a vCard-aware mobile phone.VGA Video Graphics Array: “standard” screen size of 640 by 480 pixels.

WCDMA
Wide-band CDMA: a CDMA protocol originated by NTT DoCoMo and now adopted for third-generation use by ETSI in Europe. WCDMA supports very high-speed multimedia services such as full-motion video, Internet access and video conferencing. WAP 1. Wireless Application Protocol: a set of communication protocol standards to make accessing online services from a mobile phone simple. 2. WAP was conceived by four companies: Ericsson, Motorola, Nokia, and Unwired Planet (today called Phone.com). The WAP Forum is an industry association with over 200 members. Symbian is a full member of the WAP Forum.