SIM700D TTL MODEM;
1.Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz
2.Mobile station class B
3.GPRS/EDGE multi-slot class 12

SIM700D TTL MODEM

General Features
  - Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz
  - Mobile station class B
  - Multi-slot class 12
  - Uplink or downlink max throughput: 236.8Kbps
  - Output power:
     GMSK: 
         - Class 4 (2W @ GSM850/EGSM900)
         - Class 1 (1W @ DCS1800/PCS1900)
      8PSK:
         - Class E2 (0.5W @ GSM850/GSM900)
         - Class E2 (0.4W @ DCS1800/PCS1900)
  - GPRS/EDGE multi-slot class 12
  - Coding scheme:CS1~4, MS1~9
  - Mobile station class B
  - Control via AT commands (GSM 07.07, 07. 05 and SIMCom enhanced AT Commands)

  - Embedded Multiplexer protocol stack
  - Embedded TCP/IP protocol
  - SIM application toolkit
  - Supply voltage range 3.4 ... 4.5 V
  - Low power consumption
  - Normal operation temperature: -20 °C to +60 °C
  - Restricted operation temperature: -30 °C to -20 °C and +60 °C to +80 °C
  - Storage temperature: -40°C to +85°C
  - Dimension: 43.5*26*2.9mm

Specifications for fax
  - Group 3, class 1

Specifications for data:
  - CSD: up to 14.4Kbps, non-transparent
  - GPRS: max: 85.6Kbps
  - EDGE: DL&UL max: 236.8Kbps
  - Coding scheme: CS1~4, MCS1~9 
  - Support PBCCH
  - Support USSD

Specifications for voice
  - Half Rate (ETS 06.20)
  - Full Rate (ETS 06.10)
  - Enhanced Full Rate (ETS 06.50 / 06.60 /06.80)
  - Echo cancellation
  - Noise reduction

Compatibility
  - AT cellular command interface

Drivers
  - Multiplexer driver for Microsoft Windows

Interfaces
  - Power supply
  - Two analog audio channel
  - RTC backup
  - Serial port
  - USB slave
  - Bluetooth port
  - Antenna pad
  - Charge interface
  - LCD
  - SIM Card
  - GPIO