目前銷量最大的GPRS模塊就是臺灣明基（BENQ）GPRS三頻900/1800/1900MHZ模塊，明基（M22/M23）還附帶內(nèi)置TCP/IP協(xié)議。產(chǎn)品質(zhì)量好，價格實惠，是廣大客戶的理想選擇。BenQM23/M23A模塊 特性： GSM/GPRSClass10三頻模塊 符合ETSIGSMphase2+ 通訊功能：支持GSM語音，數(shù)據(jù)，傳真，短消息及GPRS數(shù)據(jù)傳輸?shù)?軟件支持標(biāo)準(zhǔn)ATcommand(3GPP27.07/27.05) 尺寸:36.8x35.2x2.85(mm) 48PINLCC封裝ModelM23AProductFeatureTri-BandGSM/GPRSmodule:EGSM900/DCS1800/PCS1900CompliantwithGSMPhase2+standardControlviaATcommandsSupplyVoltagerangefrom3.3vto4.2vVoiceHR/FR/EFRNoisededuction,echocancellationTelephonyEmergencyCallDualToneMultiFrequencyFunction(DTMF)ShortMessageService(SMS)DeliveryReportPointtopointMT/MOCellBroadcastGSMCircuitSwitchedDataAsynchronousTransparent/non-transparentUpto14.4kbpsGPRSPacketDataGPRSClassBGPRSMulti-slotClass44slotdownlink(86.6kbps),2slotuplink(42.8kbps)max5slotCodingSchemes:CS1toCS4SupplementaryServicesNumberidentificationCallforwarding(CallDivert)CallcompletionMultiPartyChargingCallbarringInterfaceAntennaInterfaces:RFconnectorsupportcoaxialcableRFpadssupportRFcablesoldering44-pinB2Bconnectorincluding:UART/RS232SIM(1.8V/3V)GeneralPurposeI/OsAnalogaudioinput/outputPowersupplyconnectionATcommandsetaccordingtoGSM27.05,27.07GeneralInformationDimension:55.5x40x5.95mmWeight:15gOperatingTemperature:-20~+60 CFunctionalTemperature:-20~+70 CStorageTemperature:-40~+85 C