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Low price m2m 2G 3G dual band gsm gprs RS232 USB interface 1 port modem for STK  bulk sms IMEI change

GSM GPRS GPS modem Function:
 m2m 3G gps  gprs modem at commands gsm data logger input output modem 
Dual-band GSM external modem
EGSM900/1800Mhz or EGSM900/1900MHz
Small size and aluminum shell shock
Install and us, connect Internet instantly
Has been through all the technical standards certification
Voice, messaging, fax and data transmission of GSM Phase2 +
Designed for a specific application of the AT command control system

 
GSM GPRS GPS modem Technical Specification

  GSM GPRS GPS modem Function 
- Voice function call emergency telephone
Voice Codec: full-speed, full-speed and semi-enhanced rate (FR / EFR / HR)
DTMF functions (DTMF)
- Data function   Non-synchronous data circuit   Transparent and non-transparent to the highest standards 14400 bits/s
The third category automatically fax (Class1 and Class2)
MNP2, V42bis
- Short message service text and PDU peer-to-peer (MT / MO)  district Broadcast
 
GSM GPRS GPS modem Interface
-   RS-232 connections through a small mouth and Sub-D15 connector plugs audio
 
Interface support:
-   AT command used for the remote control (GSM07.07 and 07.05)
-   Link bit rate from 300 to 115,200 bits / s
-   Automatic bit rate (300 to 38,400 bits / s)
-   - Through micro - FIT4 Plug power connector
-   - SMA Antenna Interface
-   - Down the SIM card memory
 
GSM GPRS GPS modem Packing List 
-Modem
- Power Line
- For data and automatically connect to the Y-line (optional)
-Antenna
- Positioning Slot

Any problems, please contact me feel freely!

Carol

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