GSM

What is GSM?
GSM was originally an acronym for Groupe Speciale Mobile, a committee of the Conference of European Posts and Telecommunications who is appointed
to develop wireless communications and then better known as Global Systems for Mobile communications (GSM), first developed in
Europe with the main frequency of 900MHz is a wireless digital communications system second generation (2G)

* What is a SIM card?
Stands for Subscriber Identity Module, card containing data network operator ID, operator telephon, PIN and user data such as

phonebook or sms

* What is IMEI?
International Mobile Equipment Identity, a unique identity code of the mobile devices internationally recognized, common code to find out IMEI

Your phone: * # 06 #

* Who are the GSM operators in Indonesia?
Telkomsel, Indosat, Satelindo, Excelcomindo, Lippo-Telecom


GSM Services and Features

* What is Call Waiting, Call Hold and Multiparty Calling?
Call Waiting is a service that allows callers to enter the destination number, although there were talks and Call Hold with mobile phone users

can temporarily stop the conversation with the first caller was replaced by a second caller to the caller decides not

first. As for Multiparty Calling a service that allows the first and second caller over to talk with the ditelpon

three. How many callers can conference together depends on the ability of the Operator.

* What is FR, HR, and EFR?
Codec (coder and encoder) which turns voice signals into data, determine the clarity of sound heard from the phone, FR (Full Rate) has the quality

standard, HR (Half Rate) has a quality below the standard and EFR (Enhance Full Rate) has a quality above the standard. So the phone can reach

EFR quality of food needed and the support of mobile operators.

* What is a SIM Tool Kit?
Services on the SIM card that allows operators to offer VAS (Value Added Service) to its customers, for example mobile banking or download

content.

* What is the CLIP and CLIR?
Calling Line Identification Presentation (CLIP) is a service that allows to create the identity (number) callers, while the opposite, Calling Line

Identification Restriction (CLIR) is used to hide the identity (number) callers.

* What is SMS and SMSC?
SMS (Short Message Services) is a text-based service that allows users to send short messages (160 characters) to mobile users

others via SMS Center (SMSC) which will control the short message traffic.

* What is WAP?
Wireless Application Protocol, a standard that allows mobile phones to access the Internet and other wireless services.

* What is the CSD and HSCSD?
Circuit Switch Data (CSD) and High Speed Circuit Switch Data) is an early-generation data services from GSM to access the WAP through Call Data per session

(depending on access time). CSD has a transfer rate up to 14.4 Kbps while a transfer rate of HSCSD up to 43.2 Kbps.

* If GPRS what then?
Just as CSD and HSCSD, GPRS (General Packet Radio Switch) is also a GSM data services the second generation (generation rather 2.5G) which

allows users to access data services is continuously (always on) rather than per session. GPRS has a transfer rate up to 171.2 Kbps in theory

depending on its class (in real cuman 50-60 Kbps)


GPRS Class? What the ....?
GPRS class is divided into two, Class and Class Slot Service.

Class Slot
Slot class represented by the downlink and uplink rate (data transfer that can be supported by the phone to and from the network) number downlink / uplink one

has a speed between 8-12 Kbps, two 16-24 Kbps and so on berkelipatan. Formula slot class categories are as follows: GPRS Class X (downlink + uplink)


GPRS Class 1 (1 +1)

GPRS Class 2 (2 +1)

GPRS Class 4 (3 +1)

GPRS Class 6 (3 +2) / (2 +3)

GPRS Class 8 (4 +1)

GPRS Class 10 (4 +1) / (3 +2)

GPRS Class 12 (4 +1) / (3 +2) / (2 +3) / (1 +4)



Service Class
Represented by the letter, is to divide the class use the GPRS service.

GPRS Class A
Phones that have a class A GPRS and GSM services can be performed simultaneously without any interference from each service

GPRS Class B
Phones that have a class B GPRS and GSM services can be done together with the interference to the GSM GPRS. For example when receiving

call / sms then stopped automatically GPRSnya but not broken, when the service is complete GSM, GPRS will connect it again

GPRS Class C
Phone with a Class C can not use GPRS services in conjunction with GSM, the only kudhu manually use



* E Em Es (EMS) and Em Em Es (MMS) is .........
The next generation of sms, Enhanced Message Service (EMS) service that utilizes multiple messages sms (> 160 characters) to send the form data

images and sound with low quality, triggered by a Picture Message technology developed by Nokia, while MMS (Multimedia Message Service)

also a message service that can send / receive data (image / sound) high-quality data services through GPRS

* Well, kalo ntu EDGE hell?
The third generation (3G) of GSM data services, Enhanced Data Rates for GSM Evolution (EDGE) has the ability to service its 3x GPRS data up to 384 Kbps.

* EDGE class is not there?
As with GPRS, class is not much different, the difference is on EDGE, slot 1 represents the downlink / uplink speeds 48-69.2

Kbps.


Technical

* How to connect your phone with PC (Windows) as a modem?
There are several aternatif,

Data cable (USB / Serial)
IrDA
Bluetooth

Before gives a chance, you should first install the required drivers for data cable, IrDA or bluetooth and install the modem.
In general, setting in Windows is as follows:

Start> Control Panel> Phone / Modem Options> Select the modem you have installed

Click Properties> Advanced> Extra Settings> Enter a string: AT + CGDCONT = 1, "IP", "APN NAME" example for the matrix APN satelindogprs.com NAME =>

Finish-over-done

Start> Control Panel> Network Connections> Create New Connection

Next> Select Connect to the Internet> Next again

Select Set up my Connection Manually> Next> Select Connect Using a dial up modem> Next

Fill in the name of your ISP> Next> Fill Dial up number: * 99 *** 1 #> Next> Fill Nickname Password> Next> Finished

Go back into Network Connection> Choose your ISP's name already filled above> Dial-up window appears> Connect