... and of course different price,we have wavecom modem with Q2303,Q2403,Q2406,Q24Plus. Q2303 ... Price and function mainly depend on Module Wavecom Q2406 dual band 900/1800Mhz,support SMS, ... Key Features USB GSM modem poolBased on Wavecom industrial modules Q2303A/ Q2403A/Q2406B/Q24plusGSM/GPRS: 900/1800MHz ... single channel modem. It uses the development of WAVECOM module, 220V power supply, can be long ...