Based on this product's specifications, here are some alternatives and similar models
DECT base station Snom M900 White
Summary description:
The Snom M900 DECT base station operates in the frequency range of 1.88 - 1.9 GHz, supporting up to 10 channels with a maximum range of 300 meters. Its compact dimensions of 140 x 35 x 144 mm and lightweight design at 306 g make it ideal for various environments. The sleek white finish complements any setting, ensuring reliable communication without interference.