The Yealink W78P is a professional IP phone designed for modern VoIP communication systems. This business device features a high-resolution TFT color display that provides clear visibility of call information, contacts, and system status. The phone supports Power over Ethernet (PoE) for simplified installation and reduced cable clutter. With support for multiple SIP accounts, the W78P allows for efficient management of various communication lines. The device includes integrated dual Gigabit Ethernet ports for connecting to a network and a computer, with pass-through functionality supported. Audio quality is enhanced by HD voice technology and noise reduction with dual microphones for clear conversations even in busy office environments. The ergonomic handset design ensures comfortable long-term use, while the backlit keyboard allows for easy operation under various lighting conditions. The W78P supports a wide range of telephony features including hold, transfer, conference calls, and speed dial. With a focus on enterprise reliability, this IP phone offers robust construction and stable performance for continuous business communication. The black finish gives it a professional appearance suitable for office environments. Compatibility includes integration with most major IP-PBX systems and VoIP service providers. The dimensions are approximately 220 mm in width, 200 mm in depth, and 160 mm in height, with a weight of around 850 g. The operating temperature range is between 0 °C and 40 °C with a humidity tolerance of 10% to 90% non-condensing. The device requires standard SIP protocol support and connects via a standard RJ45 Ethernet interface.