send mass texts online 8/16 ports bulk sms sending receiving device low price multi sim modem  GPRS-728U rs232 modem
 

1 ports SIM card slots (Customized 8/16/32/64 port)

2G GSM Frequency: 850/900/1800/1900MHz

3G WCDMA HSDPA EVDO

4G TDD-LTE FDD-LTE

SMS sending: 600/800/1000/1200 SMS per hour by one port

Connection with the computer through RS232 interface (PCI card) can be integrated with USB interface

Each port with separate power switch

Each individual module can be discharged

Bulk sms/mms sending, voice ads, data consumption and IMEI changeable etc

Open AT command Internet Services TCP server/client, UDP, ICMP, DNS, HTTP, FTP, SMTP, POP3

1) Remote Data Monitor and Control;

2) CCTV, security surveillance;

3) Water, gas and oil flow metering and schedule;

4) AMR (automatic meter reading);

5) Power station monitoring and control;

6) Remote POS (point of sale) terminals, ATM,

7) Traffic signals monitor and control, Traffic info guidance;

8) Oil field, weather forecast, environmental protection, street lamp monitoring and control

9) Early Warning of Mountain Torrent;

10) Fleet management;

11) Power distribution network supervision;

12) Central heating system supervision;

13) Weather station data transmission;

14) Hydrologic data acquisition;

15) Vending machine;

16) Telemetry, SCADA;

17) Vehicle logistics and diagnostics controlling;

18) Parking meter and Taxi Monitor;

19) Telecom equipment supervision (Mobile base station, microwave or optical relay station)

1) Large shopping malls, supermarkets

2) Professional market, large wholesalers

3) Large hotels, large-scale entertainment

4) Large agencies

5) Transport, logistics industry

6) Large enterprises and institutions

7) Large hospitals, large bookstore

8) Newspaper, television and radio stations

9) Oil Company (or other chain business model)

10) Government agencies or large township

1. Customize appearance, such as size, fixed way.

2. Offer the control of secondary development as needed.

3. Customize AT command and functions.

4. Customize LOGO and packing.

5. Customize module needed.

6. Customize telecom standard needed.