... 2000, XP, VISTA >>| ADDITIONAL CONNECTIVITY SUPPORT*:EDGE, GPRS, and GSM Circuit Switched DataSupport for Multiple APNsSMS (send and receive)Dial ... Output Power: 500 mW (+27 dBm) /2W (+33 dBm) GSM 900 MHz band Transmit, Receive: 880-915MHz, 925-960MHzOutput Power: 500 ... (+26 dBm) /1000 mW (+30 dBm) >>|APPROVALS:Compliant with GSM Release 99 >>| ENVIRONMENTAL:Operating Temperature: -20 to +60º CStorage ...