The GXP1630 is a powerful IP phone for small and medium enterprises (SMBs). This Linux-based model includes 3 lines, 3 programmable XML keys, 8 BLF keys and 4-way conference. A 132 x 64 LCD screen with backlighting creates a clear image for easy viewing. Additional features such as two switched Gigabit network ports, HD audio, multi-language support, integrated PoE and call waiting make the GXP1630 a high-quality, versatile and reliable office phone.