KX-NT346-B IP Business System. Panasonic ™ Business ™ VoIP ™ 6 line ™ With Speakerphone ™ Bluetooth Pure performance - Attractive design: Panasonic offers a wide line-up of IP terminals with an ergonomic design for all use. The KX-NT500 Series IP telephones take you to a new dimension in audio experience through excellent HD quality audio on every phone, combined with easy access to powerful supportive features and applications. The sleek, ultra-modern design, available in both black and white colour options, works well with any office decor. Packed with a whole host of features, the KX-NT500 Series IP telephones could not be simpler to use. The phones have large alphanumeric displays, Bluetooth module built in providing wireless headset support, easy navigation key and a 2nd IP port to reduce desktop cable clutter.