Today, Hi-Tech Gateway continues to be first-to-market with enhanced implementations that enable our technology partners to stay ahead of their competition in the rapidly moving IP telephony industry.       The Hi-Tech family of VoIP development solutions, which include SIP, H.323, MEGACO/H.248 and MGCP, offer the most comprehensive suite of real-time voice and video over IP communication protocols and testing tools used to develop standards-based voice and video over IP solutions. All of Hi-Tech's VoIP development solutions ensure the highest level of interoperability and deliver maximum flexibility for all necessary customization.      Impact of IP on Voice Applications IP phones can communicate with any IP device (e.g. applications or call control servers) located anywhere Switching totally separate from call control Wireless IP infrastructure (e.g., 8021.11 wireless LANs ) may provide untethered access and/or mobility. Fixed location IP phones accessed by mobile devices (e.g. Palm, Windows CE) via IRDA (wireless) or Bluetooth (radio frequency) Intelligence located at network edge rather than embedded in switches, which means... IT departments (and users) can more easily add new voice functionality as business needs dictate