Dolphin Automation offers a range of products, including GSM GPRS modems, which facilitate communication through 2G and 3G cellular networks as defined by the GSM standard. GPRS is a packet-oriented mobile data service developed to support various applications, such as SMS and MMS. The document details the functionality of modems in modulating and demodulating signals for effective digital communication.

2.  Dolphin Automation has wide variety of products like
GPS vehicle tracking system, GSM CDMA FWP, Signal
Booster Repeater etc.
 Today we will give brief information about GSM GPRS
Modem.

3.  GSM stands for Global System foe Mobile
Communication.
 GSM is a standard developed by European
Telecommunication Standards Institute (ETSI) to describe
protocol for 2G digital cellular networks used by mobile
phones.
 The GSM standard originally described a digital circuit-
switched network optimized for full duplex voice telephony.

4.  GPRS stands for General Packet Radio Services.
 GPRS is packet oriented mobile data services on 2G & 3G
cellular communication system’s for GSM.
 GPRS was originally standardized by European
Telecommunication Standard Institute (ETSI) in response to
earlier CDPD & i-mode packet switched cellular
technologies. But now it is maintained by 3GPP ( 3rd
Generation Partnership Project).

5.  SMS
 Broadcasting
 MMS
 Push To Talk over cellular (POC)
 WAP
 P2P & P2M

6.  A modem (Modulator-Demodulator) is a device that
modulates signal to encode digital information &
demodulates signal to decode the transmitted information.
 Modem’s task is to produce a signal that can be transmitted
easily & decoded to produce original digital data.
 Modem can be used with any means of transmitting analog
signals, from LED to radio.
 For computer, modem converts the digital data into
modulated electrical signal for transmission over telephones
lines & demodulated by another modem at the receiver side
to recover the digital data.

7.  Wavecom GSM 8-port Modem
 16-port GSM Modem (Rj45)
 32-port GSM Modem
 64-port GSM Modem
 8-port GSM Bulk SMS Modem

9. http://www.dolphinautomation.in