Up to 384 kbps on umts Increase productivity and stay connected while on the road Multimode Umts 2100 MHz GSM / GPRS 900 / 1800 MHz Broadband access to email, the internet and corporate networks with transparent handoff between networks GSM / GPRS access Backward compatible for maximum coverage on GSM and GPRS networks worldwide at speeds up to 53. 6 kbps SIM compatibility SIM adds extra layer of security, easy access to phone book information and streamlines activation VPN compatibility Secure access to corporate files and applications Mobilin modem manager software Easy installation, manages multiple connectivity features Two way SMS Send and receive quick text messages Internal antenna Reliable, robust, maintains connectivity and minimizes breakage Tri-color LED Identifies network connectivity status Sleep modem Conserves battery power OS compatibility Compatible with most laptops with windows 2000 and XP windows server 2003