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- What is meaning of 2G technology?
The name usually given to original GSM, CDMA, and TDMA networks. It uses the spectrum more efficiently than analog (1G) systems, and offers digital encryption of conversations. 2G networks introduced data services for mobiles starting with SMS.^ Top
- What is meaning of 3G technology?
Analog cellular phones were the first generation while digital marked the second generation.
3G is loosely defined, but generally includes high data speeds, always-on data access, and greater voice capacity.
The high data speeds are possibly the most prominent feature, and certainly the most hyped. They enable such advanced features as live, streaming video.
There are several different 3G technology standards. The most prevalent is UMTS, which is based on WCDMA (the terms WCDMA and UMTS are often used interchangeably).
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- What are advantage of the 3GP video?
3GP is a simplified version of the MPEG-4 Part 14 (MP4) container format, designed to decrease storage and bandwidth requirements in order to accommodate mobile phones. It stores video streams as MPEG-4 Part 2 or H.263 or MPEG-4 Part 10 (AVC/H.264), and audio streams as AMR-NB, AMR-WB, AMR-WB+, AAC-LC or HE-AAC.
3GP is designed for effieciency to make it suitable for Streaming across mobile phone networks and storing on mobile devices with very littel storage capacity. Video rarely exceeds a QVGA resolution of 320 x 240 pixels but there are VGA or even D1 resolution exceptions. Audio is usually encoded as either MP3 or AAC-LC (Low Complexity). Framerates for most mobile devices are Limited to 15fps.
There are two different standards for this format:
* 3GPP (for GSM-based Phones, may have filename extension .3gp)
* 3GPP2 (for CDMA-based Phones, may have filename extension .3g2)
Both are based on MPEG-4 and H.263 video, and AAC or AMR audio.
When transferred to a computer, 3GP movies can be viewed on Linux, Mac, and Windows platforms with MPlayer and VLC media player. Programs such as Media Player Classic, Totem, RealPlayer, QuickTime, and GOM Player can also be used. Some cell phones use the .mp4 extension for 3GP video.
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- What means of 802.11 network?
802.11 is a set of IEEE standards for wireless local area networks (WLAN). The most common variant is 802.11g, which is backwards compatible with the older B variant. 802.11g devices are sometimes marked as 802.11b/g to indicate this compatibility. There is a newer version - 802.11n - that provides higher maximum speeds and better range.
The 802.11g standard's typical speeds are rated up to 54 Mbps.
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- What is meaning Assisted GPS?
Assisted GPS (A-GPS) is used to speed up start-up times of GPS-based positioning systems. GPS may have problems getting a lock when the signal is weak and in such a case A-GPS would assist in getting a lock.
This, however, is achieved by the use of an Assistance Server, so a data connection is required and charges may apply for the data transfer.
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- Why used A2DP in mobile phone?
A2DP is used for streaming stereo music wirelessly to headphones or speakers over Bluetooth.
Unlike other Bluetooth profiles (Headset and Handsfree), A2DP is one-way only and streams a stereo signal.
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- What is meaning of Accelerometers?
The accelerometer is a built-in electronic component that measures tilt and motion. It is also capable of detecting rotation and motion gestures such as swinging or shaking.
The most common use for it is to activate auto screen rotation on mobile devices when the user changes their orientation from portrait to landscape or vice-versa.
Another modern application for the accelerometer is to control the mobile device music player with gestures (Sony Ericsson Shake control or Samsung Motion play technologies).
Accelerometers are also utilized for enriching the gaming controls (navigating by tilting the device instead of by pressing keys).
Another popular mobile phone feature based on an accelerometer is turn-to-mute. It allows user to mute an incoming call, silence an alarm or pause the mobile music player simply by turning the device face down.
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- Why used alarm clock in mobile phone?
This is a feature allowing a mobile phone to act like a common alarm clock but with more flexibility.
Currently, all mobile phones offer this functionality with varying feature sets. For example, most devices allow you to set an unlimited number of alarms and set them to repeat on a daily or weekly basis. Some even allow a customizable snooze period and with the most advanced devices you can silence an alarm just by turning the device face down.
Using a favorite FM radio station as an alarm tone is also an option with some handsets.
Some phones require the device to be on for the alarm to work while others do not.
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- What is meaning AMOLED display technology?
AMOLED is an emerging display technology used in portable devices like mobile phones. Active-matrix OLED displays provide the same performance as their passive-matrix OLED counterparts, but they consume significantly less power.
This advantage makes active-matrix OLEDs well suited for portable electronics where battery power consumption is critical.^ Top
- What is Analog?
A method of transmitting information using energy waves. It doesn't have discrete levels but is a continuously variable wave. Human voice for example is transferred by directly converting the sound wave to electricity.
Analog cell phones (known also as 1G) used this technology. However virtually all modern cell phones use digital signals (2G or later).
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- What is auto jack?
A common connector for plugging in a standard pair of music headphones such as the ones found on music players, computers and most other electronic devices with audio outputs.
It can support stereo and/or microphone, depending on the number of separate connector rings on the jack.
Some phones offer only a 2.5 mm jack, which is a smaller variety of the same principle.
Headphones supplied with mobile phones usually have a mic somewhere along the cable and a remote button that allows for managing calls without using the phone.
Some manufacturers opt for placing a 3.5mm audio jack on this remote control instead of directly on the phone itself. The reason for this is that 3.5mm jacks take up quite a lot of internal space; plus, in this way the user gets to keep the remote control/mic functionality while using third-party headphones. ^ Top
- What is Auto-focus?
Auto-focus is a feature of digital cameras that allows them to focus correctly on a subject. It enhances the quality of the photo over fixed-focus cameras and allows for close-ups (or the even closer macro shots).
Phones use passive auto-focus with contrast measurement. This means that the camera needs contrast to focus and have problems focusing on a blank wall or in low light conditions.
Some phones can use their camera LEDs as a focus assist light to help deal with the latter case.^ Top
- What is Band?
A specific range of frequencies (for example those between 1850 MHz and 1995 MHz) are called a band.^ Top
- What is Bandwidth?
Bandwidth is used to measure the data throughput of a channel or connection. It's the amount of data that can be sent over a connection in a given amount of time without distortion. It should not be confused with band.^ Top
- What is Bar?
The bar form factor is the most common and simple form factor for a mobile phone. The body of a bar phone is one, single block and has no moving parts (aside from the buttons). "Locking" the keyboard is done to prevent accidental key presses when the phone is carried in a pocket, purse, etc^ Top
- Whai is meaning of Base station?
A fixed station that uses radio waves to communicate with mobile devices. It serves as the link between the user's device and the carrier's network.
Base stations range in size and area of coverage. Some may cover a radius of several kilometers while others cover only a few city blocks. Most stations transmit in all directions but there are also directional antennas aimed at a specific direction.
Usually base stations are owned by a single carrier but may offer roaming coverage for other networks.
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- What is Bluetooth?
Bluetooth is a wireless protocol for exchanging data over short distances from fixed and mobile devices, creating personal area networks.
There are two important parameters of Bluetooth devices - class and supported profiles.
"Class" signifies the distance at which a Bluetooth connection is possible. Most mobile devices are Class 2, which means they have a range of up to 10 m. Class 1 devices are rare and have a range of up to 100 feet.
A "profile" is a type of Bluetooth connection. The most common are the Headset (HSP) and Handsfree (HFP) profiles that enable the device to connect to a wireless headset or handsfree.
Some other profiles are OBEX (OBject EXchange) which allows transfer of files, contacts and events; A2DP, which adds support for streaming of stereo sound and AVRC, which allows remote control of playback.^ Top
- What is meaning of Broadband?
In data communications, a "broadband connection" is a connection with a high speed of data transfer (greater than 56 kbps). Generally, it is fast enough to support streaming video.^ Top
- why is web browser important
A piece of software that allows the user to access Internet sites.
Most current handsets are equipped with browsers capable of viewing common websites (those intended for a desktop browser).
Web browsers on budget cellphones may be capable of viewing only websites specially made for mobile devices. The most advanced devices currently have web browsers with full Flash support that allows them to play even embedded Flash video (such as the videos from YouTube).
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- What is calculator?
The basic functions (addition, subtraction, multiplication, division) are included in all calculators but some offer more advanced options such as square root or trigonomic functions.
Some calculators have the option to convert currency and can calculate mortgage payments.
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- What is Calendars?
Calendars (also known as PIM - Personal Information Manager) allow you to store information about events such as meetings or reminders (e.g. to remind you of someone's birthday). Usually an alarm can be set to sound an alert.
Some devices offer the ability to synchronize the calendar with the one on your computer or your online clendar/task manager.
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- What is camera?
Some phones feature a camera that gives them the ability to work as a digital camera. Often (though not always) the camera is also able to shoot video.
The most important characteristics of a camera are the resolution (measured in megapixels), lens focus type (either fixed or automatic) and the presence of a flash. The flash could be either LED (single or even double) or xenon.
The number of megapixels is not always a good measurement of the quality of the photos, but if you plan to print pictures, you would generally get higher quality ones out of higher megapixel cameras.
Auto focus lens are not a guarantee of better image quality, but fixed focus cameras are usually inferior. Most importantly, only auto focus cameras can allow shooting of really close objects - i.e. macro shooting.
Some phones offer optical zoom but those are rare. Most use digital zoom, which degrades the quality of the photo.
Cameras that can work in "video mode" are characterized by the maximum resolution and framerate (frames per second or fps) of the recorded video.
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- What is the meaning of Capacitive touchscreen?
Capacitive touch sensors are used either as buttons or on touchscreens. They work by sensing the electrical properties of the human body instead of pressure and generally they don't work with a stylus so they don't allow handwriting recognition. However, capacitive touchscreens feel more sensitive than their resistive counterparts.
Capacitive touch screens are also considered more durable than resistive touch screens.
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- Who many display type in mobile phone?
There are lot of display types used in mobile phones. They can be either color or monochrome. Monochrome displays on the other hand can be alphanumeric or graphic. Alphanumeric displays can show only symbols with a constant size, while graphic displays can show fonts of different sizes and animations.
The color displays usually are CSTN, TFT, TFD or OLED with a predominant use of TFT displays in current mobile lineups. There are also two types of touchscreen displays - capacitive and resistive, which are both based on TFT technology.
CAPACITIVE touchscreens work by sensing the electrical properties of the human body, while RESISTIVE ones operate by sensing direct pressure applied by the user.
The RESISTIVE type can be activated by pressing not only with human skin but also with a stylus and thus allow handwriting recognition input.
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- Who many display type in mobile phone?
There are lot of display types used in mobile phones. They can be either color or monochrome. Monochrome displays on the other hand can be alphanumeric or graphic. Alphanumeric displays can show only symbols with a constant size, while graphic displays can show fonts of different sizes and animations.
The color displays usually are CSTN, TFT, TFD or OLED with a predominant use of TFT displays in current mobile lineups. There are also two types of touchscreen displays - capacitive and resistive, which are both based on TFT technology.
CAPACITIVE touchscreens work by sensing the electrical properties of the human body, while RESISTIVE ones operate by sensing direct pressure applied by the user.
The RESISTIVE type can be activated by pressing not only with human skin but also with a stylus and thus allow handwriting recognition input.
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- What is Dual-band?
Mobile phone networks work using signals on specific frequency bands and a phone must support those bands in order to work with the network. Dual-band refers to the phones ability to work with two different bands. It is important to specify which bands exactly.
Networks in different geographical locations work on different bands - GSM networks in the Americas use the 850 MHz and 1900 MHz bands while networks in Europe, Brazil, Asia and Africa use the 900/1800 MHz bands.
For example an 900/1800 dual-band phone won't work in the US and an 850/1900 phone won't work in Europe. A 900/1900 phone should work on at least one network in most countries around the world.
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- What is Dual mode?
A dual-mode phone is a phone capable of sending/receiving data in two different ways. For example, a dual-mode phone could support both GSM and CDMA.^ Top
- What is Dynamic memory?
A way or organizing different types of data in the phone's memory. Also referred to as Shared memory.
Dynamic memory means that all types of data are stored in the same memory (there is no separate memory for photos, ringtones etc.).
An advantage of dynamic memory over partitioned memory is that it is more flexible - with partitioned memory, you can fill up the photo memory for example and you won't be able to take any more photos even if other types of memory are free.
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- What is EMS?
EMS or the Enhanced Messaging Service is an extension of SMS, which allowed mobile phone to send and receive messages that have special text formatting (such as bold or italic), animations, graphics, sound effects and ringtones.
EMS is an intermediate technology between SMS and the rich multimedia messages otherwise known as MMS.
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- What is meaning of EGSM (Extended GSM)?
EGSM extends the frequency bands of GSM 900 giving it added network capacity.
Most new phones listed as GSM 900 also support EGSM.
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- What is ESN (Electronic Serial Number)?
Each cellular phone is assigned a unique ESN, which is automatically transmitted to the cellular tower station every time a cellular call is placed.^ Top
- What is external memory card?
A removable flash drive suitable for storing music, photos and other data. Memory cards come in a variety of memory sizes and allow for easy transfer of data between your phone and other electronic devices that accept memory cards. They also allow in most cases the ability to increase your phone's memory significantly. With today's phones ever-increasing capabilities for photos and music, an external memory card is essential.
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- What is Flip-down phone?
It’s a mobile phone form factor that’s a cross-over between the Bar and Clamshell form factors.
In this case the device is mainly a bar, but a thin "flip" part covers the keypad and/or display when not in use.
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- Whai is FM radio?
The built-in FM radio tuner is now considered a basic feature. It allows the user to listen to most of the live-broadcasted FM radio stations. Almost all phones with FM radio tuner require a wired headset to be connected to the unit as it’s used as an antenna.
Most FM radio tuners can receive basic radio station info over RDS. The use of FM radio does not interfere with the network carrier and it’s free.^ Top
- What is meaning of GPRS?
General Packet Radio Service is a packet-switching technology that enables data transfers through cellular networks. It is used for mobile internet, MMS and other data communications. In theory the speed limit of GPRS is 115 kbps, but in most networks it is around 35 kbps. Informally, GPRS is also called 2.5G.^ Top
- Whai is GSM?
GSM is the most popular standard for mobile phones in the world used by over 1.5 billion people across more than 210 countries and territories. The ubiquity of the GSM standard makes international roaming very common between mobile phone operators, enabling subscribers to use their phones in many parts of the world. GSM differs significantly from its predecessors in that both signaling and speech channels are digital, which means that it is considered a second generation (2G) mobile phone system.^ Top
- Why we used Handsfree?
Allows users to talk and listen without holding the phone up to their ear via a microphone and speakers. Useful for conference calls and doing other tasks while talking on phone.
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- What is HSDPA?
An upgrade for UMTS networks that doubles network capacity and increases download data speeds by five times or more.
The service was initially deployed at 1.8 Mbps but upgrades to the networks and new user devices led to increased rates of 3.6 Mbps, followed by 7.2 Mbps.
HSDPA only handles the downlink while the uplink is handled by a related technology called HSUPA. The combination of both technologies is usually called HSPA.
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- What is meaning of IMEI?
IMEI is a unique 15-digit serial number that uniquely identifies a GSM or UMTS mobile phone. It consists of four parts and provides information, such as the manufacturer, to the mobile network. It is usually printed on the device under the battery.
IMEI can be used to "ban" a stolen phone, making it hard to use by the thief with a new SIM card^ Top
- What is Infrared data association
Infrared connectivity is an old wireless technology used to connect two electronic devices. It uses a beam of infrared light to transmit information and so requires direct line of sight and operates only at close range.
IR was superseded by Bluetooth, which has the advantage of operating at longer distances (around 30 feet) and being omni-directional. ^ Top
- What is IP(Internet Protocol)?
IP is the the protocol used for communicating data across a packet-switched network used in most publicly accessible networks today. Connections that mobile devices make to GPRS, 3G and similar networks are made using IP.^ Top
- What is JAVA
Often stands for "Java ME" (the new name of J2ME, Java 2 Platform, Micro Edition). Java ME is a platform for applications running on mobile phones. These, mainly small, applications (e.g. games) can be downloaded from the Internet directly to the phone using its built-in web-browser.^ Top
- What is JAVA?
Often stands for "Java ME" (the new name of J2ME, Java 2 Platform, Micro Edition). Java ME is a platform for applications running on mobile phones. These, mainly small, applications (e.g. games) can be downloaded from the Internet directly to the phone using its built-in web-browser.^ Top
- What is meaning of LCD?
A liquid crystal display is the most common display type among mobile phones because of its low power consumption and good image quality. They are generally easy to read, even under direct sunlight.
The smallest element of an image displayed on a LCD is the pixel. Each pixel normally consists of a layer of molecules aligned between two transparent electrodes, and two polarizing filters.
Some of the types of LCD displays are STN, TFT and TFD. The first one, STN, offers low cost and low power consumption, but low image quality. TFT features greater image quality and response time, yet its displays are more expensive and need more power.
Three other types of LCDs are transmissive, reflective, or transflective. Transmissive displays offer nicer image quality in low or medium ambient light, while reflective ones work best in bright ambient light. Transflective displays combine the best of both.^ Top
- What is Li-Ion (Lithium Ion)?
This stands for a type of rechargeable battery. They are much lighter than earlier battery types (NiCd and NiMH), have a long life cycle and generally don't suffer from the so-called "memory effect".^ Top
- What is Li-Polymer (Lithium Polymer)?
This stands for a type of rechargeable battery which has evolved technologically from Lithium-Ion batteries.
Current lithium-polymer batteries are actually Lithium-Ion Polymer and perform similarly to Lithium-Ion batteries. The advantage however of Li-Polymer batteries is that they can be made much thinner.
Generally, they don't suffer from the so-called "memory effect" common to NiCd and NiMH batteries.^ Top
- What is loudspeaker?
The loudspeaker is a small sound driver fitted within a mobile phone, or other communication device, which is used to produce sound. Traditionally, loudspeakers on mobile phones are used to produce sound alerts for events such as incoming calls, incoming messages and alarms.
Since mobile phones have started doubling as portable music players in recent years, users have begun using their built-in speakers for playback of music. Acknowledging this new type of use of the mobile phone loudspeaker, manufacturers have begin to equip their music or video-centric mobiles with more powerful loudspeakers or even a pair of loudspeakers for accurate stereo reproduction and enhanced spatial effects.^ Top
- What is microSD?
A special slot for inserting a memory card. Memory cards allow you to expand the phone's built-in memory (or in the past these slots have been used to add some missing features such as Wi-Fi connectivity).
Memory cards have different capacities and are used to store and transfer files between compatible devices. There are several types of memory cards. The most popular and frequently used by mobile phone manufacturers is microSD^ Top
- What is messaging
In addition to pure voice calls, all GSM carriers also offer messaging services and messaging has been a core service since the beginning of GSM mobile telephony. Mobile messaging ranges from SMS, through EMS, to IM and Email.
For more information, please visit the relevant glossary articles.^ Top
- What is messaging ?
In addition to pure voice calls, all GSM carriers also offer messaging services and messaging has been a core service since the beginning of GSM mobile telephony. Mobile messaging ranges from SMS, through EMS, to IM and Email.
For more information, please visit the relevant glossary articles.^ Top
- Why we connect mobile phone to PC?
A type of USB connector. USB stands for "Universal Serial Bus". Devices connected to the computer using a USB cable can easily exchange files and information (if the device supports Mass Storage mode, the files can be transferred without the need for special drivers or software).^ Top
- What is meaning of MMS?
Abbreviated as MMS, the Multimedia Messaging Service is a store and forward messaging service that allows subscribers to exchange multimedia files as messages.
MMS supports the transmission of various media types: text, picture, audio, video, or a combination of all four. The originator can easily create a Multimedia Message, by snaping a photo with the phone camera, or by using images and sounds stored previously in the phone (or downloaded from a web site).
If the recipient phone is not switched on or it has not been setup to receive MMS messages, the Multimedia Message will be stored in a special repository offered by the GSM carrier.
In order to send or receive a MMS, the user must have a compatible phone that is running over a GPRS or 3G network. Most current mobile phones and operator networks support MMS.
The maximum message size (along with the attachments) is generally limited to 300KB (MMS 1.2), but recently the MMS 1.3 standard has allowed for a maximum size of 600KB. Wireless carriers however can impose their own size restrictions. Whenever possible we will try and state the MMS version supported by the individual handsets in our database^ Top
- Why used Music player in Mobile application?
A mobile phone application that allows you to listen to music files stored in the phone's internal or external memory.^ Top
- Why we used OS in Mobile system?
An infrastructure software component of a computerized system. It controls all basic operations of the computer (or other electronic devices such as PDA, smartphone, etc.).
Among the most popular desktop operating systems are Windows, Mac OS, and variations of Linux, while the most widely used operating systems for mobile devices are Symbian and Windows Mobile.
Mobile devices with OS are called smartphones and can run full software applications (like games, organizer or communication applications) on top of the OS. Standardized operating system platforms make it possible to provide a consistent user interface (and experience) across devices from diverse hardware manufacturers.^ Top
- What is RAM?
This is the memory where the software resides while it is running along with the data it is using. RAM is used by both OS and application software.
RAM is very fast but volatile, meaning that all information is lost when electric power is cut off. That makes it useful for temporary storage of data that requires fast access. ^ Top
- WHAT is RBDS?
Radio Broadcast Data System is the official name used for the U.S. version of RDS, though the "RDS" name seems to be at least as common in daily usage. The two standards are nearly identical, with only slight differences, mainly in which numbers are assigned to each of the 31 music and other program formats the RBDS system can identify^ Top
- What is RDS?
Radio data system or RDS is a standard for sending small amounts of data through conventional FM radio broadcasts. The RDS system standardizes several types of information transmitted, including track/artist info and station identification^ Top
- Why we used ringtone?
That is the sound that a phone makes to indicate an incoming cal^ Top
- why we used RSS (Rich Site Summary)?
A family of XML-based web feed formats used to publish frequently updated information such as news headlines, blog entries, etc.
RSS feeds are very lightweight (especially compared to full web pages) and are ideal for mobile devices which often suffer from limited bandwidth and screen size.
A special software (called RSS-reader) is needed for the RSS feeds to be displayed.^ Top
- What is SD(Secure Digital)?
Secure Digital or SD is a popular type of memory card. Memory cards are based on Flash memory and are used as solid state storage, their main purpose being an inexpensive way to store or transfer data between computers and other digital products.^ Top
- What is Standby time?
Standby time is the length of time a phone can stay turned on and ready to send and receive calls, messages and data transmissions. It is reduced when calls actually occur as talking consumes a lot more power than standby mode alone.
The distance from the nearest carrier base station also has an effect on the power consumed by the phone in standby mode, as well as whether the handset is stationary or moving (as in a vehicle).
Manufacturers measure talk time in controlled conditions and the quoted numbers are rarely reached in real-life scenarios. These numbers are best used as reference when comparing phones from the same manufacturer because battery life measurement methodology will probably vary from manufacturer to manufacturer.^ Top
- What isStand-by time (battery life)?
Stand-by time is the officially quoted longest time that a single battery charge will last when the phone is constantly connected to the GSM network but is not in active use.
The stand-by time is highly dependent on the cellular network environment, such as the distance to the closest GSM cell tower (base station). Moving the phone (as in a vehicle) also negatively affects battery life.
Manufacturers measure talk time in controlled conditions and the quoted numbers are rarely reached in real-life scenarios. These numbers are best used as reference when comparing phones from the same manufacturer because battery life measurement methodology will probably vary from manufacturer to manufacturer.^ Top
- What iS SIM?
A subscriber identity module is a removable smart card for mobile phones. SIM cards store the required information to identify the mobile device. It also contains data required for voice encryption to make listening in on calls almost impossible (except when the wireless carrier itself is doing the eavesdropping).
In this way the customer ID (and personal number) is tied to the SIM card and not to a certain mobile phone. This allows for a seamless interchange of the same SIM card between different GSM mobile phones.
SIM cards also serve as storage for SMS messages and the user's contacts. Current SIM cards can store up to 250 name/number pairs and up to 50 SMS text messages^ Top
- What is advantage of SMS (Short Messaging Service)?
SMS or the Short Messaging Service allows users to send and receive personal text messages directly between mobile phones or sometimes to email adresses. Each message can be up to 160 characters long (when using the default character set) and can be sent to and from users of different operator networks. All mobile phones support SMS.
Recently mobile manufacturers have started offering special reading layouts for SMS inspired by Instant Messengers such as ICQ, Skype, and MSN. The so-called threaded message layout or conversation-style layout displays the incoming and outgoing messages between two participants in a single pane ordered chronologically. ^ Top
- What is Symbian ?
Symbian OS is an operating system designed for mobile devices.
The Symbian OS is used as the underlying base for two major smartphone platforms: S60 and UIQ. Generally, applications written for one of these platforms are not compatible with the other but as they use the same underlying OS it is easier for developers to convert applications from one of them to the other. The Symbian OS introduced major changes to version 9 that made all previous software incompatible without updating. The platforms based on Symbian subsequent to version 9 are the UIQ 3.0 and later, as well as S60 3rd edition.
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- What is meaning of Talk time?
Talk time is the officially quoted longest time that a single battery charge will last when you are constantly talking on the phone.
The talk time is highly dependent on the cellular network environment such as the distance to the closest GSM cell tower. Moving fast while talking (as in a vehicle) also negatively affects battery life.
Manufacturers measure talk time in controlled conditions and the quoted numbers are rarely reached in real-life scenarios. These numbers are best used as reference when comparing phones from the same manufacturer because battery life measurement methodology will probably vary from manufacturer to manufacturer.^ Top
- What is Text messaging?
Text messaging is a service allowing text messages to be sent and received on a mobile phone. This is also known as SMS (Short Message Service).^ Top
- What is Tri-band?
A Tri-band GSM phone is one that supports three of the four major GSM frequency bands, allowing it to work in most parts of the world. The two most common kinds of tri-band GSM phones are the European type, which support the 900, 1800 and 1900 frequencies and the American type, which cover the 850, 1800 and 1900 frequencies. ^ Top
- What is TFD?
TFD is a kind of Liquid crystal display (LCD) technology. It is an active-matrix technology which means that a diode is situated next to each pixel making it possible for the pixels to be turned on and off individually. This allows a quicker response time and more contrast than passive-matrix technologies.
TFD takes the excellent picture quality and the fast response of TFT displays and combines them with the low power consumption and cost of the STN ones^ Top
- What is meaning of TFT (Thin Film Transistor)?
TFT is one of the best Liquid Cristal Display technologies in terms of image quality and response time. However, it also consumes more power and is more expensive.
TFT, like TFD, is an active-matrix technology. This means a transistor is located next to each pixel, allowing it to be turned on and off individually. This ensures faster response time and greater contrast.
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- What is Meaning VGA(Video Graphics Array)?
One of the resolution standards used for images, videos and displays. VGA means a resolution of 640 pixels x 480 pixels.^ Top
- Why we used Voice mail?
Voice mail is a network feature offered by most networks. It is similar to an answering machine and allows the caller to leave a voice message if the person called is unavailable.
This feature means that the person who received the message can listen to it whenever necessar^ Top
- What is Voice dialing?
Voice dialing is a feature most modern phones support. It allows the user to dial a number by a voice command.
There are two ways this is done. The first way is for the user to record the commands in advance and then use them. This normally means that only the user who has recorded the commands may apply them.
The other kind of voice-dialing enabled phones use text recognition and no prerecording is required. When someone issues a command these devices simply match it to the nearest contact in the phone book.
This feature does not depend on the speaker and usually performs better than the former method. However, it is not commonly avaible, especially in older phones.
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- What is Video call?
Video call is a 3G network feature that allows two callers to talk to each other while at the same time viewing live video form each other's phone. To make a video call, both users should have 3G phones which support this feature and they both need to be in range of a 3G network.^ Top
- What is meaning of Wap?
WAP is an international standard for applications that use wireless communication. Its most common application is to enable access to the Internet from a mobile phone or a PDA.
WAP sites are websites written in or converted to WML (Wireless Markup Language) and accessed via the WAP browser
WAP websites are now considered outdated as most modern phones have web browsers with HTML support.
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- What is meaning of Wi-Fi ?
Wi-Fi is a WLAN (Wireless Local Area Network) technology. It provides short-range wireless high-speed data connections between mobile data devices (such as laptops, PDAs or phones) and nearby Wi-Fi access points (special hardware connected to a wired network).
The most common variant of Wi-Fi is 802.11g, which is capable of providing speeds of up to 54Mbps and is backwards compatible with 802.11b (providing up to 11Mbps).
There is currently a new standard in the works called 802.11n (offering twice the speeds of 802.11b) and there are already retail networking devices that support its draft specifications. Currently, there are no mobile phones that support the draft 802.11n specifications.
Wi-Fi is much faster than any data technologies operating through the cellular network like GPRS, EDGE and even UMTS and HSDPA.
The range covered by a Wi-Fi access point is from 30 to 100 meters indoors while outdoors a single access point can cover about 650 meters.
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- What is WLAN?
Wireless Local-Area Network is a way of providing a wireless high speed connection between data devices or a data device and an access point over a short range.^ Top
- How will I claim my mobile phone warranty?
From our website browse to the Customer Service Centers link, find the nearest center in our provided listing. You can visit any of the Service Center regardless of the location/city you purchased your mobile from and your current location/city. You can visit your nearest Service Center on any weekday between 9:00 A.M. till 6:00 P.M.^ Top
- How can I contact Teletec Service Center or Teletec office?
We have provided complete details of our Service Centers and our office on the contact us page.^ Top
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