Lowest price gsm modem pool ,sms sending modem pool for india and indonesia market,support STK, USSD, DIAL ,SMS etc.

LEKA brand module modem 

Description :

GSM modem pool advantage

1.Newest SMS Machine, exquisite out look,industrial design .

2.Quad band 850/900/1800/1900MHz

3.Virtual com port ,only one port will be shown on the device management .

4.AT command ,wavecom open AT,with a little difference,you can test the machine with Putty or Hyper terminal

for each port the same way .

                      1st AT+CMGS……

                      2nd BT+CMGS……

                      3rd CT+CMGS……

                      4th DT+CMGS……

                      5th ET+CMGS……

                      6th FT+CMGS……

                      7th GT+CMGS……

                      8th HT+CMGS……

5.SMS capacity per hour :4800/hour

Module information :

Frquency (850/900/1800/1900Hz)

Dual-band EGSM900 and GSM1800 Compliant to GSM phase 2/2+ Output power:
– Class 4 (2W) for EGSM900
– Class 1 (1W) for GSM1800 Control via AT commands SIM Application toolkit Multiplex RS232 interface
Supply voltage range 8 – 30V
Dimensions: 75*50*16mm
Weight 150g
Ambient temperature: -20oC to +55oC
Data transfer
GPRS Class 8 (up to 85.6Kbps)
Full PBCCH support GPRS mobile station, class B CSD up to 14.4Kbps USSD Non transparent mode V.110 Coding scheme CS1, 2, 3, 4
Fax Group 3, Class 1, 2
SMS Point-to-point MO and MT SMS cell broadcast Text and PDU mode
Audio Half Rate (HR) Full Rate (FR)
Enhanced Full Rate (EFR)
Interfaces
Plug in power supply
Mini-SIM card reader

GSM modem pool illustrations :

This model of sms device was most popular in Indian and indonesia

Very stable functionity and Pretty cheap price .

Which is Better: Mobile Phone or GSM / GPRS Modem

In general, a GSM/GPRS modem is recommended for use with a computer to send and receive messages. This is because some mobile phones have certain limitations comparing to GSM/GPRS modems. Some of the limitations are described below:

• Some mobile phone models (example: Ericsson R380) cannot be used with a computer to receive concatenated SMS messages.
  
  What is a concatenated SMS message?
  A concatenated SMS message is a message that contains more than 140 bytes. (A normal SMS message can only contain at most 140 bytes.) Concatenated SMS works like this: the sender's mobile device breaks a message longer than 140 bytes into smaller parts. Each of these parts are then fitted in a single SMS message and sent to the recipient. When these SMS messages reach the destination, the recipient's mobile device will combine them back to one message.
  
  What is the cause of the problem?
  When the mobile phone receives the SMS messages that are parts of a concatenated SMS message, it combines them to one message automatically. The correct behavior should be: when the mobile phone receives the SMS messages that are parts of a concatenated SMS message, it forwards them to the computer without combining them.
• Many mobile phone models cannot be used with a computer to receive MMS messages. Because when they receive a MMS notification, they handle it automatically instead of forwarding it to the computer.
• A mobile phone may not support some AT commands, command parameters and parameter values. For example, some mobile phones do not support the sending and receiving of SMS messages in text mode. So, the AT command "AT+CMGF=1" (it instructs the mobile phone to use text mode) will cause an error message to be returned. Usually GSM/GPRS modems support a more complete set of AT commands than mobile phones.
• Most SMS messaging applications have to be available 24 hours a day. (For example, an SMS messaging application that provides ringtone downloading service should be running all the time so that a user can download ringtones any time he/she wants.) If such SMS messaging applications use mobile phones to send and receive SMS messages, the mobile phones have to be switched on all the time. However, some mobile phone models cannot operate with the battery removed even when an AC adaptor is connected, which means the battery will be charged 24 hours a day.

Besides the above issues, mobile phones and GSM/GPRS modems are more or less the same for sending and receiving SMS messages from a computer. Actually, you can consider an AT-command-enabled mobile phone as "GSM/GPRS modem + keypad + display + ...".

There is not much difference between mobile phones and GSM/GPRS modems in terms of SMS transmission rate, since the determining factor for the SMS transmission rate is the wireless network.