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China Cell Phone Glossary
 
 
 
GSM
 
GSM (Global System for Mobile communication) is a digital mobile telephony system that is widely used in Europe and other parts of the world, including GSM900MHz, GSM1800MHz and GSM1900MHz and so on. GSM cell phone advantages: Superior sound quality, International Roaming ability, small cheaper handsets and ability, safe and secure. digital network, worldwide network, superior battery life & digital technology, allows more calls to be handled at any one time.
     
CDMA
   
  CDMA(Code Division Multiple Access), refers to any of several protocols used in so-called second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. The technology is used in ultra-high-frequency (UHF) cellular telephone systems in the 800-MHz and 1.9-GHz bands.

CDMA cell phone advantages: much better and cost-effective voice quality, privacy, system capacity, and flexibility than other wireless technologies, along with enhanced services such as short messaging, e-mail and Internet access.
   
3G
 
  3G is the third generation of mobile phone standards and technology, superseding 2.5G. It is based on the International Telecommunication Union (ITU) family of standards under the IMT-2000.3G networks enable network operators to offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency. Services include wide-area wireless voice telephony, video calls, and broadband wireless data, all in a mobile environment.

3G cell phone advantages: higher call volumes, supports multimedia data applications such as video and photography and so on.
 
 
GPRS
 
  GPRS(General Packet Radio Service) is a method of enhancing 2G phones to enable them to send and receive data more rapidly. With a GPRS connection, the phone is "always on" and can transfer data immediately, and at higher speeds: typically 32 - 48 kbps. An additional benefit is that data can be transferred at the same time as making a voice call. GPRS is now available on most new phones.  
 
WAP
 
  WAP(Wireless Application Protocol) is a secure specification that allows users to access information instantly via handheld wireless devices such as mobile phones, pagers, two-way radios, smart phones and communicators. Because WAP is fairly new, it is not a formal standard yet. It is still an initiative that was started by Unwired Planet, Motorola, Nokia, and Ericsson. WAP could get through WAP Gateway to access the general website. Through WAP, we could get company website and internet information at anytime, anywhere.  
 
Bluetooth
 
  Bluetooth is a short-range radio technology aimed at simplifying communications among Internet devices and between devices and the Internet. It also aims to simplify data synchronization between Internet devices and other computers.  
 
Bluetooth Earphone
 
  Bluetooth earphone is small equipment which base on Bluetooth technology which can wear on the ear to pick up the telephone. It is very convenience.  
 
SMS
 
  SMS(Short Message Service) is a communications protocol allowing the interchange of short text massages between mobile telephone devices. SMS text messaging is the most widely used data application on the planet, with 2.4 billion active users, or 74% of all mobile phone subscribers sending and receiving text messages on their phones.  
 
EMS
 
  EMS(Enhanced Message Service) is a new and improved format of Short Message Service (SMS) pushed by Alcatel, Ericsson, Motorola and Siemens. EMS has enhanced features such as over the air data synchronization and, and messages with fixed and animated icons. EMS is an open standard, which means that these new picture messages will be cross-phone compatible and every phone manufacturer can use the format. But Nokia, the largest phone maker, refuses to join the initiative, rather concentrating on the more evolved MMS system.  
 
MMS
 
  MMS(Multimedia Message Service)is a store-and-forward method of transmitting graphics, video clips, sound files and short text messages over wireless networks using the WAP protocol. Carriers deploy special servers, dubbed MMS Centers (MMSCs) to implement the offerings on their systems. MMS also supports e-mail addressing, so the device can send e-mails directly to an e-mail address. The most common use of MMS is for communication between mobile phones.  
 
SIM Card
 
  SIM Card(Subscriber Identity Module) is a portable memory chip used in some models of cellular telephones. The SIM card makes it easy to switch to a new phone by simply sliding the SIM out of the old phone and into the new one. The SIM holds personal identity information, cell phone number, phone book, text messages and other data. It can be thought of as a mini hard disk that automatically activates the phone into which it is inserted.
A SIM card can come in very handy. For example, let's say your phone runs out of battery power at a friend's house. Assuming you both have SIM-based phones, you can remove the SIM card from your phone and slide it into your friend's phone to make your call. Your carrier processes the call as if it were made from your phone, so it won't count against your friend's minutes.
If you upgrade your phone there's no hassle involved. The SIM card is all you need. Just slide it into the new phone and you're good to go. You can even keep multiple phones for different purposes. An inexpensive phone in the glove compartment, for example, for emergency use, one phone for work and another for home. Just slide your SIM card into whatever phone you wish to use.
 
 
PIN
 
  PIN(Personal Identify Number) is a 4-8 digit access code which can be used to secure your telephone from use.  
 
PIN2
 
  PIN2(Personal Identify Number 2) is a 4-8 digit access code which can be used to access the priority number memory and cost of calls.  
 
PUK
 
  PUK(Personal Unlock Key) and PUK2 are used to unlock the PIN and PIN 2 codes respectively if your SIM card is blocked.  
 
Pixel
 
  Pixel is a single point in a graphic image. Graphics monitors display pictures by dividing the display screen into thousands (or millions) of pixels, arranged in rows and columns. The pixels are so close together that they appear connected.  
 
Stand-by Time
 
  Stand-by time the total time a battery can power a phone that is not used to receive or perform a call but only standing by, which consumes less energy. Usually expressed in days, as in "3 days standby time."  
 
Talk Time
 
  Talk time is the amount of time a call center agent spends with a caller during a transaction. Talk time typically includes everything from "hello" to "goodbye" and is often expressed in terms of average minutes.  
 
Call Waiting
 
  Call waiting is a feature on some telephone networks. If a calling party places a call to a called party which is otherwise engaged, and the called party has the call waiting feature enabled, the called party is able to suspend the current telephone call and switch to the new incoming call, and can then negotiate with the new or the current caller an appropriate time to ring back if the message is important, or to quickly handle a separate incoming call.  
 
Call Identity
 
  Call identity displays the incoming number to the receiver of the call. After the subscriber applies for the caller identity service, the incoming number will be automatically displayed on their mobile phone.  
 
Remind Me
 
  Remind me using the Remind Me service, all calls will be automatically recorded whether you are power off, out of connection or inconvenient to answer or you cannot be connected. When you return to a normal mode, you will receive messages to remind you of your missed calls.  
 
Call Forwarding
 
  Call forwarding You can forward calls to other pre-set numbers so that you can answer your calls on other phone.  
 
Call Barring
 
  Call barring You want to stop some calls? By using the Call Restriction service, you can bar any incoming or outgoing numbers according to your needs.  
 
Voicemail Box
 
  Voicemail box When your power is off, it is inconvenient to answer or you cannot be connected, your phone’s "voice mailbox" will save voice messages for you. When you have new messages in your voice mailbox, you will receive a reminder SMS so that you may listen to and manage your voice messages.  
 
Call Conceal
 
  Call Conceal When you have this service, your number will not show up on the receiver’s mobile even if the receiver has the Call Identity service.  
 
Conference Call
 
  Conference call Mobile users can use this function to hold a conference call. To achieve this, there should be one organizer in charge of the organization of the meeting. The host should be calling from a mobile phone while other participants can use mobile phones or call a fixed telephone line.  
 
CRBT
 
  CRBT When someone calls your mobile, the ring tone they hear is no longer the ordinary traditional sound: instead, it is your customized music or greeting.  
 
NiCad Battery
 
  NiCad battery have the shortest usage times and are prone to memory effect, which occurs when batteries are recharged before they have been fully discharged.  
 
NiMH Battery
 
  NiMH battery are typically less bulky than NiCad batteries and hold a charge 50 percent to 100 percent longer than NiCads. While they do not have the recharging problems that plague NiCad batteries, they can fade in extreme temperatures.  
 
LiIon Battery
 
  LiIon battery offer the longest battery life in the smallest package. They can provide up to five hours of talk time. LiIon batteries are much smaller than NiCad batteries and don't experience the same recharging problems. However, this power comes at a cost — LiIon batteries are more expensive than other types.  
 
 
 
 
 
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