... The GSM double frequency (900/1800MHz), supports GPRS class 8 (MC35I) and GPRS 10 (MC39I) The volume exquisite function is formidable ... but MC39I then mainly designs uses in the consumable application. MC35i is suitable for the M2M application, for example vending machine ... module in your product simple integration. At the same time MC35i also supports Packet Broadcast Control Channel (PBCCH), its mode ...