Sony S312 Quick reference guide

September 2009
S312
Premium dual front Camera phone

White paper S312
2 September 2009
This document is published by Sony Ericsson
Mobile Communications AB, without any
warranty*. Improvements and changes to this text
necessitated by typographical errors, inaccuracies
of current information or improvements to
programs and/or equipment, may be made by
Sony Ericsson Mobile Communications AB at any
time and without notice. Such changes will,
however, be incorporated into new editions of this
document. Printed versions are to be regarded as
temporary reference copies only.
*All implied warranties, including without limitation
the implied warranties of merchantability or fitness
for a particular purpose, are excluded. In no event
shall Sony Ericsson or its licensors be liable for
incidental or consequential damages of any
nature, including but not limited to lost profits or
commercial loss, arising out of the use of the
information in this document.
This White paper is published by:
Sony Ericsson Mobile Communications AB,
SE-221 88 Lund, Sweden
www.sonyericsson.com
© Sony Ericsson Mobile Communications AB,
2008. All rights reserved. You are hereby granted
a license to download and/or print a copy of this
document.
Any rights not expressly granted herein are
reserved.
First edition (September 2009)
Publication number: 1224-8237.1
Preface
Purpose of this document
This White paper will be published in several revisions as the phone is developed. Therefore, some of the
headings and tables in this document contain limited information. Additional information and facts will be
forthcoming in later revisions.
The aim of this White paper is to give the reader an understanding of the main functions and features of
this phone.
People who can benefit from this document include:
• Operators
• Service providers
• Software developers
• Support engineers
• Application developers

White paper S312
3 September 2009
Sony Ericsson Developer World
At www.sonyericsson.com/developer, developers can find the latest technical documentation and
development tools such as phone White papers, Developers guidelines for different technologies, SDKs
and relevant APIs. The Web site also contains discussion forums monitored by the Sony Ericsson
Developer World support team, an extensive Knowledge Base, Tips & Tricks, example code and news.
Sony Ericsson also offers technical support services to professional developers. For more information
about these professional services, visit the Sony Ericsson Developer World Web site.
Document history
Change history
2009-9-18 Version 1 First revision

White paper S312
4 September 2009
Contents
Product overview ....................................................................................................................... 5
Key features ............................................................................................................................. 6
Images ..................................................................................................................................... 8
Technologies in detail ................................................................................................................ 9
Functions and features ........................................................................................................... 10
Facts and figures ..................................................................................................................... 19
Technical specifications ......................................................................................................... 20
General technical data......................................................................................................... 20
Performance and technical characteristics ......................................................................... 20
USSD technical data ........................................................................................................... 21
GPRS technical data ........................................................................................................... 21
SIM AT services supported ................................................................................................. 22
Entertainment ......................................................................................................................... 27
Audio and video................................................................................................................... 27
Ringtone file formats............................................................................................................ 28
Radio with RDS ................................................................................................................... 28
Imaging/Messaging ................................................................................................................ 28
2.0 MP camera .................................................................................................................... 28
Pictures and animations ...................................................................................................... 29
Image decoders................................................................................................................... 29
Image encoders ................................................................................................................... 29
Short Messaging Service..................................................................................................... 30
Enhanced Messaging Service ............................................................................................. 31
Multimedia Messaging Service............................................................................................ 32
Email client technical data ................................................................................................... 34
Connectivity ........................................................................................................................... 36
Bluetooth™ technical data ................................................................................................. 36
OMA Data Synchronisation (SyncML™) technical data ...................................................... 37
Browser technical data ........................................................................................................ 37
Operator technical data ....................................................................................................... 39
Java ..................................................................................................................................... 43
Abbreviations ........................................................................................................................... 44
Related information ................................................................................................................. 48
Documents ............................................................................................................................. 48
Links ....................................................................................................................................... 48
Trademarks and acknowledgements ..................................................................................... 48

White paper S312
5 September 2009
Product overview
S312 is a sleek looking camera phone aiming to bring easy to use snapshot imaging experience to users.
S312 has a 2-megapixel camera with a 2.5x digital zoom, Photo fix, LED photo light, horizontal camera UI
and a large 2-inch 262 k colour screen. All this is packaged into a slim 12.3 mm phone body.
Taking pictures with S312 is just as easy as taking pictures with a digital camera. Hold it horizontally,
press the camera key to start, use the large display to find the target and take the picture. Users can also
quickly start record short video clips by simply pressing the video key. S312 features LED photo light
which improves the picture quality when taking pictures in darker environments. Photo light is not a
common feature in S312’s price segment. The slide show function enables people to view all pictures
stored in the picture album.
S312 also features Photo fix and picture blogging. Photo fix optimises the image quality by adjusting the
light balance and contrast after a picture has been taken. Picture blogging makes it possible for users to
take a picture and upload it to their site instantly. Users can also record short video clips by simply
pressing the video key once they have started the camera.
Pictures and video clips can easily be shared with friends via MMS or email, or be transferred to a
computer using Bluetooth™ wireless technology or a USB cable.
The built-in FM radio supports RDS and the user can pre-set channels for quick access. The media player
features video playback. S312 supports the MP3 and AAC format.
The phone features no less than 15 MB built-in memory to store content such as games, pictures, video
clips, sound clips, ringtones, themes and so on. The content can also be saved on a memory card, a
Memory Stick Micro™ (M2™), and can be easily transferred from or to a computer by using a USB cable
or Bluetooth.
Note: To provide updated information about the implemented technology and functionality of this
product, this White paper will be released in updated revisions.

White paper S312
6 September 2009
Key features
2.0 megapixel camera
The 2.0 megapixel camera includes a 2.5x digital zoom, a built-in LED photo light and Photo fix to ensure
high quality pictures. Taking a picture and sending it as part of a multimedia message or as an email
attachment, or posting it on a Web site, is just a few clicks away. The dedicated camera shortcut key
enables users to quickly activate the camera with just one press. The dedicated video shortcut key
enables users to quickly activate the video recorder with just one press.
LED photo light
Lighting conditions can be enhanced by using the built-in LED photo light, which is easily activated via the
camera settings.
2.0 inch colour screen
The 2.0 inch (220x176 pixels), full graphic, 262K TFT colour screen enhances viewing of high-quality
multimedia and entertainment in the phone.
Video camera
The built-in camera captures a video recording and stores it in the phone or on the Memory Stick Micro™
(M2™). A video clip can be shared as a picture message with friends or family. The phone supports QCIF
(Quarter CIF), 144x176 pixels resolution, size video recording, and streaming and playback.
Video recording
Recording a video clip and sending it as part of a picture message or as an email attachment is just a few
clicks away. A recorded video clip can also be sent via Bluetooth™ wireless technology or a USB cable to
a computer.
Picture blogging
The Picture blog application provides an easy way to send pictures to the Internet. The pictures are
posted on users’ personal Web blog page where their friends can easily access and comment on pictures.
Bluetooth™ wireless technology
Several devices (simultaneous Bluetooth™ connections) can be connected up to 10 metres (33 feet) away
using Bluetooth wireless technology. For example, when the phone rings, it can be answered with a
Bluetooth headset, and images can be sent to another phone at the same time. Several mobile phones
can take part in a Bluetooth-supported game and the phone and a computer can exchange data such as
images, video clips, vCards, music files and calendar data. Bluetooth version 2.0 is supported.
RDS FM Radio
The FM radio with RDS (Radio Data System) offers instant and easy access to FM radio channels. Plug in
the portable handsfree that works as an antenna and start listening to the radio. The RDS function brings
information directly to the screen from the currently tuned in radio station. The radio can also be used as
an alarm signal.
Memory Stick Micro™ (M2™)
Different kinds of content (pictures, audio, video clips and so on) can be saved on the memory card and
transferred to other memory card compatible products, such as digital cameras, video cameras, portable

White paper S312
7 September 2009
music players, TVs, photo printers and computers. The phone can handle memory cards (M2™) up to
2GB.
Music player
The music player converts the phone into a portable MP3, MPEG-4, H263 player, playing music and video
clips, streamed or downloaded. The folder system enables users to, for example, organise their favourite
songs into groups and create playlists. By using the flight mode, the music player can still be used in
aeroplanes, hospitals and other places where using a mobile phone is prohibited.
USB 2.0 mass storage
When connecting the phone to a computer using the provided USB cable, the memory card appears on
the computer screen as a removable disk together with other computer disks. You can then quickly and
easily drag and drop, for example, music and image files between folders in the phone and the computer.
Java™
Additional Java applications give users a chance to personalise the functions in their phones, and
developers the opportunity to create new applications.
Polyphonic sound
The phone supports polyphonic ringtones with 64 simultaneous voices or instruments.
TrackID™
TrackID™ enables the user to identify a track playing on the built-in radio or a track playing in the room. A
few seconds of the song is sampled, the phone connects to an online database, which identifies the song
and returns the title, artist and album information.
PlayNow™
The phone gives a unique direct-link to download games and music. This link is easy to use and gives the
user access to best-selling content that can be previewed before purchase. Users can, for example, go
straight to a live list of top music hits. The PlayNow service is not supported in all markets or regions.
HTML Web browser support
Browse the Internet and look at the Web sites.
Picture Messaging (MMS)
MMS (Multimedia messaging service) is the logical extension of SMS (Short Messaging Service) and EMS
(Enhanced Messaging Service). MMS allows sound, image and video to be combined in a message.

White paper S312
8 September 2009
Images

White paper S312
9 September 2009
Technologies in detail
This chapter offers a detailed description of the technologies available in this product.

White paper S312
10 September 2009
Functions and features
The following table is a description of the features in this product. It also compares this product with two
other Sony Ericsson products.
Feature S312 F305 S302
3D games Yes Yes Yes
Alarm clock
Set a time for simple or recurring weekly alarms
Yes Yes Yes
Antenna
Built-in
Yes Yes Yes
Backlight
Illuminates your phone screen
Yes Yes Yes
Battery 3.6 V, 930mAh,
Lithium Polymer
3.6 V, 950 mAh,
Lithium Polymer
3.6 V, 950 mAh,
Lithium Polymer
Battery charging time At least 90%
charged within
2.5 hours
At least 90%
charged within 2
hours
At least 90%
charged within 2
hours
Bluetooth™ wireless technology
Wireless connectivity between devices. The out
of range distance varies and depends on where
you are. Support for specification of the
Bluetooth System, version 2.0
Yes Yes Yes
Business card exchange, vCard
Exchange contact information
Yes Yes Yes
Calculator Yes Yes Yes
Calendar
Fully functional calendar with day, week and
month views and reminders
Yes Yes Yes
Call list
View calls made and calls received
Yes Yes Yes
Camera 2.0 megapixel 2.0 megapixel 2.0 megapixel
Camera activation
Dedicated camera activation. Press once and
the integrated camera activates
Yes, camera
button
Yes, camera
button
Yes, camera
button

White paper S312
11 September 2009
Video recorder activation
Dedicated video recorder activation. Press
once and the integrated video recorder
activates
Yes No No
Camera menu
Easy-to-use horizontal digital camera menu
Yes Yes Yes
Chinese input method
Text input methods based on Simplified or
Traditional Chinese; Bopomofo, Pinyin or
Stroke
Yes Yes Yes
Clock
Visible clock on the screen
Yes Yes Yes
Co-branding area 7x22 mm 6.25x22 mm 7x22 mm
Code memo
A safe place to save all your PIN codes and
other information. To access code memo, only
one PIN code is needed
Yes Yes Yes
Colour Dawn Blue
Honey Silver
Mystic Black
Polar White
Crystal Blue
Thunder Grey
Contacts
Phonebook with fields for name, phone and fax
numbers, email addresses, Web address,
company address info, personal address info
and birthday
Yes Yes Yes
Conference calls
Support for multi-party calling
Yes Yes Yes
Content online
Downloadable pictures and ringtones available
online
Yes Yes Yes
Copyright protection - DRM
DRM (Digital Rights Management) features the
rights and copy protection of downloaded
content (audio, pictures, music tones, video,
entertainment features such as games and
Java applications)
Yes,
OMA DRM v1
Yes,
OMA DRM v1
Yes,
OMA DRM v1
Feature S312 F305 S302

White paper S312
12 September 2009
Design Stick phone, dual
front
Slider phone,
exchangeable
front and battery
cover
Stick phone, dual
front
CSS
Cascading Style Sheets, the de facto standard
style sheet language on the Web, specified by
W3C
Yes Yes Yes
Digital camera menu Yes Yes Yes
Digital zoom 2,5x for still
pictures 4x for
video
2.5x for pictures
(in VGA mode)
4x for video clips
2.5x
DOM2
Document Object Model (DOM) Level 2 HTML
Specification, specified by W3C
Yes Yes Yes
Email
Built-in email client with inbox, outbox,
compose, send and other functions. Supports
attachments
Yes Yes Yes
EMS (Enhanced Messaging Service)
Text messaging (SMS) with pictures and
sounds
Yes Yes Yes
Exterior description
Length (mm):
Width (mm):
Thickness (mm):
Weight (g):
100
45.6
12.3
80.1
96.2
47.2
14.6
97.5
100.5
46.3
10.9 (screen)
12.0 (camera)
85
Fast port
A system connector which enables faster data
transfer between the phone and a computer
Yes Yes Yes
File manager
Folder structure storage to help you save and
organize pictures, sounds and other phone
content
Yes Yes Yes
Feature S312 F305 S302

White paper S312
13 September 2009
Flight mode
All radio transmitters and receivers are
deactivated, making it possible to use the
phone only as a music player in aeroplanes,
hospitals and other situations where using a
mobile phone is prohibited
Yes Yes Yes
FM radio with RDS
FM radio with presets, auto and manual
search. Portable handsfree is used as an
antenna. The radio can also be used as an
alarm signal
Yes Yes Yes
Games download
Replace your in-phone games with new ones
Yes Yes Yes
Games embedded Yes Yes Yes
Gaming shortcut key
Dedicated game activation key. Press once to
activate the integrated game menu
No Yes No
GPRS
General Packet Radio Services – a
communications standard enabling packet
data transfer similar to Internet at 28.8-58.6
Kbps. It is recommended that you have GPRS
to use MMS and content download services
Yes
Multislot class 10
supported (4+2)
Yes
Multislot class 10
supported (4+2)
Yes
Multislot class 10
supported (4+2)
HTML
Hyper Text Markup Language, the standard
Internet communications protocol
Yes Yes Yes
Icon Desktop
A graphic icon desktop with interactive icons
Yes Yes Yes
Internet blogging
Share up to full-size pictures over the Internet
on your personal Web page. The size of
uploaded pictures is dependent on
customizations
Yes Yes Yes
Internet security
Encrypts confidential information such as
credit card and bank account numbers.
Necessary for mobile banking and shopping
Yes Yes Yes
Feature S312 F305 S302

White paper S312
14 September 2009
Java™
Support for Java™ technology
Java 2, Micro
Edition (J2ME™),
Java 3D™
Java 2, Micro
Edition (J2ME™),
Java 3D™
Java 2, Micro
Edition (J2ME™),
Java 3D™
Keys - Dedicated gaming keys No Cross and circle
keys
No
Keys - Navigation and more 4+1 way
navigation key
3 soft keys
2 selection keys
C (Clear) key
Call key
End/on/off key
4+1 way
navigation key
3 soft keys
2 selection keys
C (Clear) key
Call key
End/on/off key
Gaming shortcut
key
4+1 way
navigation key
3 soft keys
2 selection keys
C (Clear) key
Call key
End/on/off key
Keys - Keypad 12 alphanumeric
keys
12 alphanumeric
keys
12 alphanumeric
keys
Keys - side Volume/camera
zoom
Camera key
Video key
Volume/camera
zoom
Camera key
Volume/camera
zoom
Camera key
Keypad lock
Lock the phone keys so they do not activate a
function in the phone
Yes Yes Yes
Lunar calendar
A calendar system used in China and other
parts of Asia. A lunar month is determined by
the period required for the moon to complete
its full cycle of 29.5 days
Yes Yes Yes
Memory (built-in)
Phone memory that is free to use (depending
on software configuration/file content)
No less than 15
MB
More than 10 MB Up to 20 MB
Memory card (included)
Separate memory card for storing pictures,
audio, video clips and so on
No No 512 MB on
Memory Stick
Micro™ (M2™)
Feature S312 F305 S302

White paper S312
15 September 2009
Memory Stick Micro™ (M2™) slot
Slot for inserting a mini peripheral storage
device (up to 2GB). Compatible with many
cameras, computers and other devices
Yes Yes Yes
Menu shortcuts
A function making it possible to dedicate
shortcuts to the most-used phone functions
Yes Yes Yes
MMS (Multimedia Messaging Service)
Picture messaging with text and sound
Yes Yes Yes
MMS video
Support in the phone for sending video using
MMS
Yes Yes Yes
Modem
GSM Internet dial-up support
Yes Yes Yes
Motion games No Yes No
Music player
A digital music player with sideways
navigation. Play music you have transferred or
downloaded.
Yes Yes Yes
Music tones
Music tones, also called master tones, are
DRM (Digital Rights Management) protected
music by original artists. Various digital audio
formats are supported
Yes Yes Yes
My friends
Wireless Village™ server community
Yes Yes Yes
Networks GPRS and EDGE
in all bands
GSM (R99)
GSM 900,
GSM 1800,
e-GSM 900
GSM (R99)
GSM 850,
GSM 900,
GSM 1800,
GSM 1900,
e-GSM 900
GSM (R99)
GSM 850,
GSM 900,
GSM 1800,
GSM 1900,
e-GSM 900
OMA Data Synchronisation (SyncML™)
A device communications standard that
enables remote synchronisation between
devices
SyncML 1.1.2 SyncML 1.1.2 SyncML 1.1.2
Feature S312 F305 S302

White paper S312
16 September 2009
OTA settings
WAP and other settings can be sent over-the-
air to the phone
Yes Yes Yes
Picture gallery
A thumbnail image gallery where sections of
several pictures can be viewed at the same
time
Yes Yes Yes
Picture phonebook
Add pictures to the contacts. When someone
calls, a picture appears on screen
Yes Yes Yes
Picture wallpaper
Background picture seen on the screen when
the phone is in standby mode
Yes Yes Yes
PlayNow™ (direct link)
Listen to music or preview games=before you
purchase and download to your phone
Yes Yes Yes
Polyphonic ringtones 64 tones 64 tones 64 tones
Predictive text input
When you write text, predictive text input
software predicts what word you are writing
and finishes it for you. The prediction is based
on previous words used and a customizable
dictionary
Yes Yes Yes
Redial
Identify and redial the most recent caller
Yes Yes Yes
Screen
Type:
Size:
Resolution:
Technology:
Screen colours:
Full graphical
2.0 inches
176x220 pixels
TFT
262,000 (18 bit)
Full graphical
2.0 inches
176x220 pixels
TFT
262,000 (18 bit)
Full graphical
2.0 inches
176x220 pixels
TFT
262,000 (18 bit)
Screen saver
When the phone has not been used for a while,
a screen saver activates and the phone goes
into “sleep mode”
Yes Yes Yes
Feature S312 F305 S302

White paper S312
17 September 2009
Side volume keys
Controls on the side of the phone that regulate
the volume of incoming sound
Yes Yes Yes
SIM card lock
The possibility to protect the SIM card with a
four-digit PIN code
Yes Yes Yes
Sleep mode
A power saving feature that minimises battery
power consumed when the phone is in standby
Yes Yes Yes
SMS, long (Text Messaging)
Concatenated SMS text messaging
Yes Yes Yes
Sound recorder
A mini recording device in your phone that lets
you record voice messages or other sounds
Yes Yes No
Speakerphone
Loudspeaker suitable for using the phone as an
office handsfree
Yes Yes Yes
Speed dialling
Allocating contacts in your phonebook to
specific keys on the keypad
Yes Yes Yes
Standby time Up to 400 hours 350-400 hours Up to 300 hours
Status view
The screen shows the network being used,
time and other status information
Yes Yes Yes
Stopwatch Yes Yes Yes
SVG Tiny 1.1
Scalable Vector Graphics for impressive
animated wallpapers, menus and other graphic
elements
Yes
not in browser
Yes
not in browser
Yes
not in browser
Style-up™ cover No Yes No
Tal k ti m e Up to 8 hours 7-8 hours Up to 7 hours
Tas ks
Keeps track of important things to do
Yes Yes Yes
Feature S312 F305 S302

White paper S312
18 September 2009
Themes
Phone menu texts and background graphics
Yes Yes Yes
Timer
Set the phone to alert after a specific time
lapse
Yes Yes Yes
USB connectivity support
Connect the phone to a computer with a USB
cable and the memory in the phone appears on
the computer screen as a mass storage device
Yes Yes Yes
Vibrating alert
The phone vibrates when a call comes in
Yes Yes Yes
Video player
Record, play and transfer video clips to another
phone or a computer via an available transfer
method
Yes Yes Yes
Video streaming
Real time streaming of video, for example, live
cam
Yes Yes Yes
Voicemail
Support for voicemail operator service
including automatic answering and message
recording
Yes Yes Yes
WAP 2.0 XHTML™
A mobile Internet standard to access specially
designed Internet sites. WAP 2.0 supports
colour and interactive lists
Yes Yes Yes
Feature S312 F305 S302

White paper S312
19 September 2009
Facts and figures
This chapter offers readers a detailed listing of all the technical data relating to the product.
Comprehensive descriptions of performance and technical characteristics are presented in table format
for quick and easy access.

White paper S312
20 September 2009
Technical specifications
General technical data
Performance and technical characteristics
System Dual band. e-GSM 900, GSM 1800. GPRS and EDGE in all bands.
Speech coding HR, FR, EFR, AMR supported where available, for high speech quality.
GSM SIM/USIM card Small plug-in card, 1.8 V and 3 V.
Memory (built-in) No less than 15 MB internal (depending on software configuration/file
content). Memory Stick Micro™ (M2™) which has a capacity of up to
2GB.
Data transfer speeds Up to 85.6 Kbps (downlink)
Up to 42.8 Kbps (uplink)
Dimension GSM 900/E-GSM 900 GSM 1800
Frequency range (MHz) TX: 880–915
RX: 925–960
TX: 1710–1785
RX: 1805–1880
Channel spacing 200 kHz 200 kHz
Number of channels 174 Carriers *8 (TDMA) 374 Carriers *8 (TDMA)
Modulation 8PSK/GMSK 8PSK/GMSK
TX phase accuracy < 5º RMS Phase error (burst) < 5º RMS Phase error (burst)
Duplex spacing 45 MHz 95 MHz
Frequency stability +/- 0.1ppm +/- 0.1ppm
Voltage operation (nominal) 3.6 V 3.6 V
Transmitter RF power output 33 dBm Class 4
(2 W peak)
30 dBm Class 1
(1 W peak)
Transmitter Output impedance 50 ohm 50 ohm
Transmitter Spurious emission
(according to specification)
< –36 dBm up to 1 GHz
< –30 dBm over 1 GHz
< –30 dBm
Receiver RF sensitivity Better than –102 dBm –102 dBm
Receiver RX Bit error rate < 2.4% < 2.4%