HANDFREE OPERATION,ECHO CANCELLATION,NOISE     REDUCTION,7 DIFFRENT RINGING TONES/MELODIES

-FIRMWARE UPDATE WINDOWS EXECUTABLE FOR UPDATE OVER SERIAL INTERFACE ASCO. -SIM APPLICATION TOOLKIT SUPPORT SAT CLASS 3,GSM 11.14 RELEASE 98 SUPPORTOF LETTER CLASS 'C' -AT COMMANDS HAYES 3GPP TS 27.007,TS 27.005, CINTERION WIRELESS MODULES AT COMMANDS FOR RIL COMPATIBILITY.

-MODULE INTERFACE 50 PIN BOARD-TO-BOARD CONNECTOR -ANTENNA 50Ω EXTERNAL ANTENNA CAN BE CONNECTED VIA ANTENNA CONNECTED OR SOLDERABLE PAD -SIM INTERFACE SUPPORTED SIM CARDS:3V,1.8V EXTERNAL SIM CARD HOLDER HAS TO BE CONNECTED VIA INTERFACE CONNECTOR(NOTE THAT SIM CARD HOLDER IS NOT PART OF (MC37I) -AUDIO 2 ANALOG INTERFACES 1 DIGITAL INTERFACES (DAI) -2 SERIAL INTERFACES -ASCO 8 WIRE MODEM INTERFACE WITH STATUS AND CONTROL LINES,UNBALANCED,ASYNCHRONOUS FIXED BIT RATES:300 BPS TO 230 000 BPS AUTOBAUDING:1,200 BPS TO 230,000BPS SUPPORT RTSO/CTSO HARDWARE HANDSHAKE AND    SOFTWARE XON/XOFF FLOW CONTROL MULTIPLEX ABILITY ACCORDING TO GSM 07.10 MULTIPLEXER PROTOCOL -ASC1 SUPPORT RTS1/CTS1 HARDWARE HANDSHAKE AND SOFTWARE XON/XOFF FLOW CONTROL FIXED BIT RATES:300 BPS TO 230,000 BPS 4 WIRE,UNBALACED ASYNCHRONOUS INTERFACE -POWER ON/OFF RESETS -RESETS ORDERLY SHUTDOWN AND RESET BY AT COMMAND -POWER ON/OFF -SWITCH ON BY A HARDWARE PIN IGT -SWITCH OFF BY COMMAND (AT<SMSO)AUTOMATIC SWITCH OFF IN CASE OF CRITICAL TEMPERATURE AND VOLTAGE CONDITIONS -EVALUATION KIT -DSB45 DSB45 EVALUATION BOARD DESIGNED TO TEST AND TYPE APPROVE CINTERION WIRELESS MODULE AND PROVIDE A SAMPLE CONFIGURATION FOR APPLICATION ENGINEERING -SPECIAL FEATURES -TTY/CTM SUPPORT INTEGRATED CTM MODEM -PHONEBOOK SIM AND PHONE -REAL TIME CLOCK TIMER FUNCTIONS VIA AT COMMAND -CHARGING SUPPORT MANAGEMENT OF RECHARGEABLE LITHIUM ION AND LITHIUM POLYMER BATTERIES.