Based on this product's specifications, here are some alternatives and similar models
IP Phone Snom D812 Black TFT 5" Display Gigabit Ethernet
Summary description:
The Snom D812 is an IP phone featuring a 5" TFT display with a resolution of 480 x 272 pixels. It supports various voice codecs and has a frequency range of 100 - 8000 Hz. With Gigabit Ethernet connectivity, it ensures high-speed data transfer. The device is designed for desk or wall mounting and operates on Linux, making it a reliable choice for modern office environments.