GPRS Router and GPRS Modem

What is GPRS?

GPRS is a cellular network stands for General Packet Radio Service, and it is a protocol for passing data over a mobile phone network. Here is more info knowing about GPRS,

1. GPRS replaced dial-up cellular modem and cellular router Internet access, offering faster browsing of Internet content and email. It's an "always on" service".
2. GPRS on a cellular modem and cellular router doesn't use a phone number to connect; it uses something called an APN (Access Point Name).
3. GPRS has now been largely superseded by faster data network services known as 3G

Mostly the GPRS Router and GPRS Modem are the used to meet users’ internet connection at the beginning. And now the 3G modem and router are more and more popular for high data interconnections.

GPRS and 3G APN settings info.

Normally it requires the four parameters.

1.      Service code (dialing number)

2.      Username

3.      Password

4.      APN code

For example GPRS APN info in China,

Network Provider	Service code	Username	Password	APN code
China Mobile	*99***1#			cmnet
China Union	#777	card	card

And 3G APN info

Network Provider	Service code	Username	Password	APN code
China Mobile	*99#			3gnet
China Union	*99#			uninet

In a word, different network provider can use the same service code, username and password, but owns different APN code.

Originated by zouyanbing from blog of Wireless Router/Modem – HDMI Blog