The icw-1000g is a dual band, 2.4 and 5.0 MHz sip (rfc3261) Wi-Fi phone that supports IEEE 802.11 a/b/g/n and g.711 alaw,g.711 law, g.729ab and now HD voice with g.722. The icw-1000g is the next generation of the successful unidata wpu7800 series and maintains its reputation as the most reliable ap transitioning Wi-Fi phone on the market. Because of the high quality voice it is the preferred model in busy environments like healthcare, warehousing and hospitality and is an ideal replacement for Avaya and cisco 792x Wi-Fi phones. Supports the following features. Http push, VPN, encrypted provisioning, special character and multi language support, as well as standard enterprise IP phone functions, call mute, hold, transfer (attended/unattended/consultation), waiting, forwarding (busy/no answer/unconditional), id, ID blocking, 3 way conferencing (if supported on IPBX)polyphonic midi ring / vibration ringer simultaneous bell and vibration effects hotkey for vibration and ring toggling adjustable ringing and volume levels adjustable display brightness and timeout100 call history of inbound, outbound and missed call500 phone book with 30 grouping99 speed dial phone book search and during call phonebook file synchronization via auto provisioning server last number redial support to setup hotkey call time time and date volume controlmwialarm/wakeup call world time (52 countries)location (52 countries)call progress tones (19 countries)calculator language :English, French, Germany, Spanish Dutch, Portuguese, Italian, turkishpc-syncear phone speaker phone.