EN/LZT 108 4803 R1A Mobile Phone T20e White Paper
Ericsson is the leading provider in the new telecoms world, with communications solutions that combine telecom and datacom technologies with freedom of mobility for the user. With more than 100,000 employees in 140 countries, Ericsson simplifies communications for its customers - network operators, service providers, enterprises and consumers - the world over.
Contents PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Purpose Of This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . 6 WAP SERVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Using WAP In The T20e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Bearer Type Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Gateway Characteristics . . . . . . . . . . . . . .
PREFACE Purpose Of This Document The Ericsson T20e White Paper is designed to give the reader a deeper technical understanding of how the T20e is designed, and of how it interacts with other media. This document will make it easier to integrate the T20e with the IT and communications solutions of a company or organization.
PRODUCT OVERVIEW The T20e is a Dual Band phone with a lithium battery; a phone of modern design and advanced technology. • • • • • • • • • • • • It has a Wireless Application Protocol 1.1 (WAP 1.1) compliant browser, allowing fast and reliable access to Internet services with security according to WTLS class 2. Both access types, GSM Data and SMS, are supported. The T20e supports Enhanced Messaging Service (EMS), an enhancement of the SMS standard.
WAP SERVICES The typical WAP client is a small, portable device which is connected to a wireless network. This includes mobile phones, pagers, smart phones, PDAs and other small devices. In these devices, you have a limited user interface, low memory and computing power compared to desktop and laptop computers. The WAP browser in the T20e is compliant with WAP 1.1 including security according to WTLS class 2.
Bearer Type Characteristics The phone accesses WAP services over SMS or IP, where IP is provided over GSM Data. Typical differences which distinguish the bearer types are listed below this diagram. GSM Data Access • Circuit connection of data call means that the phone is connected during the WAP session. • Connection-oriented WAP (user option) uses error recovery services to provide high reliability. • Comparably higher transmission speed than with SMS access.
Gateway Characteristics The WAP Gateway provides services in the company’s Intranet, a banking or stock trading service on the Internet, or access to other WAP applications on web addresses anywhere on the Internet. A Gateway is identified by an IP number or by a phone number, depending on access type. Connection-oriented And Connection-less WAP The T20e supports both connection-less and connection-oriented WAP over GSM Data. The user can select which method to use.
Over-The-Air Provisioning Of WAP Settings To simplify configuring WAP settings in a number of phones, all settings can be sent as an SMS message to each phone. This makes it easy for an operator, a service provider or a company to distribute settings for Internet/Intranet, and WAP, without having to configure each phone manually. This also makes it easy to upgrade the services provided to the users, without the need for users to perform any manual configuration.
POWERFUL MESSAGING AND CHAT The T20e is capable of sending and receiving SMS messages, linked messages and it supports Enhanced Messaging Services (EMS). Also, mobile chat over SMS is supported.
Pictures In the T20e, there are more than 30 permanently stored pictures that express different moods and situations. The pictures are grouped by eight different themes to make them easy to find. In addition, the T20e has another 30 empty positions where the user can save pictures that have been received in incoming messages, or have been created by the user on the phone, see “Picture Editor” on page 12.
Mobile Chat Via SMS The T20e makes it possible to chat with a second party using SMS. The chat is a series of short messages and corresponding replies between the two parties, similar to chat services provided on the Internet. This allows the user to review the conversation history in the display, and also to reply to messages by using a few commands. This makes the chat session quicker than using the current SMS feature. • Nicknames can be used to help identify the user in the chat.
CONNECTIVITY The Mobile Office DI 28 infrared modem (optional accessory) turns the T20e into a wireless modem using AT commands. This provides data and e-mail communication, as well as Internet/ Intranet access, for a connected PC, PDA or handheld device. In the T20e, AT commands are used both for: • controlling the data communication between the PC and the remote service. This requires the Mobile Office DI 28 infrared modem (optional accessory).
FUNCTIONS AND FEATURES In-phone Functions And Features Melody Composer The T20e has a built-in Melody Composer, where the user can edit and create up to 8 melodies by using the phone’s keypad. Each melody can consist of up to 80 notes over 3 octaves. A note (or a rest) can be set in one of four durations. All this gives a great flexibility in creating personal ring tones and melodies for the user. Profiles The profile feature; group of settings preset to suit a certain environment.
Start-up And Shut-down Shows The T20e has built-in start-up and shut-down shows that feature a short animation with a melody. It is possible to create your own shows with a personal picture and melody. This option is called “My Animation”, and it can be managed in two ways: • Use the Mobile Office DI 28 infrared modem (optional accessory). The Phone Settings software includes a function that lets the user change the start-up and shut-down animation and install it on the T20e.
Network-Dependent Features Fixed Dialling And Restricted Calls For a company or an organization, it can be useful to restrict phone calls. Fixed Dialling allows you to preset a number of digits, for example area codes. This restricts the user to making calls only to numbers which use the preset digits as leading digits. Fixed Dialling makes use of the PIN2, and it requires fixed dial fields on the SIM Card. Check with your Operator about this feature.
SIM APPLICATION TOOLKIT The SIM Application Toolkit (SIM AT) is a smartcard-centric method of deploying programs that apply only to GSM and to SMS and USSD transports. Programs must be distributed on smartcards. WAP is an Internet-centric method of deploying programs that is independent of network technology. Programs and content are kept centrally on web servers and downloaded as required.
Service Mode Support in T20e GET INPUT General: No of hidden input characters.
Service Mode Support in T20e SET UP CALL General: Capability configuration Yes Setup speech call CallParty Subaddress DTMF support No Yes '00' = set up call, but only if not currently busy on another call; Yes '01' = set up call, but only if not currently busy on another call, with redial; Yes '02' = set up call, putting all other calls (if any) on hold; Yes '03' = set up call, putting all other calls (if any) on hold, with redial; Yes '04' = set up call, disconnecting all other calls (if an
REFRESH A requirement to turn the phone off and then on again can be sent to the user with the text ‘Operator has updated your SIM! Restart phone to update!’. SELECT ITEM Scroll to highlight item for selection. The maximum number of items supported by the phone within one Select Item command, is 30.
TERMINOLOGY AND ABBREVIATIONS 3GPP 3rd Generation Partnership Project. API Application Programming Interface. Bearer The method for accessing WAP from the phone, for example GSM Data (CSD) and SMS. Bookmark A URL and header/title stored in the phone. Browsing session From the first access of content until the termination of the connection. Calling Line Identification (CLI) Shows the number of the person calling you in your mobile phone display.
GSM phones are either phase 1 or phase 2 compliant. GSM 1800 Also known as DCS 1800 or PCN, this is a digital network working on a frequency of 1800 MHz. It is used in Europe and Asia-Pacific. HDML Handheld Device Markup Language. HDTP Handheld Device Transport Protocol. HR Half Rate, speech coding. HTML HyperText Markup Language. HTTP HyperText Transfer Protocol. Image WBMP or GIF image contained in a Card.
USSD Unstructured Supplementary Services Data. VAD Voice Activated Dialling. VAS Value Added Service. WAE Wireless Application Environment. WAN Wide Area Network. WAP Wireless Application Protocol. Handheld devices, low bandwidth, binary coded, a deck/card metaphor to specify a service. A card is typically a unit of interaction with the user, that is, either presentation of information or request for information from the user.
RELATED INFORMATION Documents • The T20e User’s Guide • Mobile Phones R520, T20, A2628 Developers' Guidelines WAP Services • WAP 1.1 Specification • EMS specifications are found in “Technical Specification 3GPP; Technical realization of the Short Message Service (SMS)” (3G TS 23.040 V4.0.
APPENDIX: TECHNICAL SPECIFICATIONS The consumer pack includes 1 Mobile Phone T20e 1 Standard Battery BST 13 (1150 mAh) 1 Standard Charger CST-10 1 Carrying strap 1 Ericsson service and support leaflet 1 User’s Guide 1 Battery leaflet 1 Accessory leaflet General Product name System T20e/T20ec GSM phase 2 recommendations.
Performance And Technical Characteristics Dimension GSM 900/E-GSM 900 GSM 1800 Frequency range TX: 880 – 914 MHz RX: 925 – 959 MHz TX: 1710 – 1785 RX: 1805 – 1880 Channel spacing 200 kHz 200 kHz Number of channels 174 Carriers *8 (TDMA) 374 Carriers *8 (TDMA) Modulation GMSK GMSK TX Phase Accuracy < 5º RMS Phase error (burst) < 5º RMS Phase error (burst) Duplex spacing 45 MHz 95 MHz Frequency stability +/- 5 ppm (downlink RX) +/- 175 Hz (downlink RX) Voltage operation (nominal) 3.
Current Consumptions, Talk And Standby Times Dimension GSM 900 GSM 1800 Transmission current 110 mA (min) 250 mA (max) 120 mA (min) 240 mA (max) Standby current 6 mA (min), (paging rate 9, 1 neighbour present) 6 mA (min), (paging rate 9, 1 neighbour present) 9 mA (max), (paging rate 2, 16 neighbours present) 9.
WAP Browser Technical Data Feature Support in the T20e WAP browser Authentication WAP 1.1. Server applications may request Basic Authentication. Gateway may request Authentication during connection setup.
Enhanced Messaging Service Technical Data EMS Feature Support in T20e Concatenation (linked SMS) Yes, 3 parts, each message up to 128 bytes of data iMelody format support Note range: From octave 3 note c to octave 5 note b (Notes out of range are discarded) Durations: iMelody notation Example in Melody Composer 150 ms 0 c 225 ms 1 c. 300 ms 2 C 450 ms 3 C.
EMS Feature Support in T20e Picture, variable sizes Originated on phone (WxH in pixels): 8x8, 8x16, 8x32, 16x16, 16x32, 32x32 Received to phone: Width in pixels: (Pictures wider than display are truncated.) In multiples of 8 pixels up to the screen width (i.e. 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96) Height in pixels: from 1 to 1024. Note: The total product of Width and Height must never exceed 128 bytes.
Index Numerics 3GPP 11 A Abbreviations 22 Acknowledgement 25 B Bearer type characteristics 8 C Chat 13 Configuration of WAP 10 Connection-less WAP 9 Connection-oriented WAP Connectivity 14 9 D Documents 25 E Edit pictures 12 EMS 11 Enhanced Messaging Service 11 Enhanced Messaging Service Technical Data 30 F Fixed Dialling 17 Functions and features 15 G Gateway 9 GSM Data access characteristics GSM system support 26 8 I Internet time 15 L Languages, MMI Links 25 26 M Melodies 12 Melody 11 M
Over the Air provisioning 10 P Phone book 15 Pictures 12 Preface 5 Product description 6 Profiles 15 Purpose of this document 5 R Related information Restricted Calls 17 Ring tones 11 25 S Security using WAP 9 Shut-down show 16 SIM Application Toolkit 18 SIM card type 26 SMS 11 SMS access characteristics 8 Standby time 28 Start-up show 16 Supported MMI languages 26 T Talk time 28 Technical specifications 26 Terminology and abbreviations 22 Trademarks and acknowledgements 25 U User interaction with
