The telesail TS330 provides powerful features and flexibility in a SIP standard based,carrier-grade advanced level expandable VOIP telephone. With a sleek and elegant design, the TS330 are well-featured with a 128*64 pixel backlit LCD display , adjustable contrast,3 programmable softkeys, 10 function keys with LED,3 memory keys, and adapter headset for phone,up to 3 sip account/call appearance keys with LEDs,call log directory and local 3-way calling conferrencing. TS330 connects via dual 10/100[...]