CSD (Circuit Switched Data - ) , GSM, GSM, CSD Internet. CSD . Internet, . , 9,6 / 14,4 /.
GPRS (General Packet Radio Service ). Internet GPRS, . CSD, . (Multislot Class) ( ), 171.2 /. , / GPRS 30-40 /, , , . GPRS Multislot Class 10, 24 / , 48/ .
GPRS: Class A, Class B, Class C.
Class A
GSM GPRS , .. .
Class B
GPRS GSM , .. GPRS - , GPRS . . GSM- GPRS Class B.
Class
GSM GPRS , .. .
EDGE (Enhanced Data rates for Global Evolution GSM). EDGE ( , ) GSM 3 . , EDGE , . , , Internet GPRS, . GSM- EDGE, EDGE . , EDGE , , EDGE ( EDGE , E, G)
)
SMS .
SMS , :
SMS ,
SMS ,
|
|
, .
70 160 .
- . : (): T9, iTAP (Motorola) . , .. , . , , , .
70 (160) .
EMS
EMS (Alcatel, Ericsson, Motorola Siemens). , - , . , MMS.
MMS
(GIF, JPEG), , . , : 300 (, , ), . , , , , 1000 . , MMS. , , MMS -, Apple iPhone 3G.
)
. , SIM . , FotoCall ( ) VideoCall ( ). , . VideoCall .
:
: .
(, e-mail ..). , .
. .