DECT Frequencies used worldwide

• Frequency: the DECT physical layer specifies RF carriers for the frequency ranges 1880 MHz to 1980 MHz and 2010 MHz to 2025 MHz, as well as 902 MHz to 928 MHz and 2400 MHz to 2483,5 MHz ISM band with frequency-hopping for the U.S. market. The most common spectrum allocation is 1880 MHz to 1900 MHz; outside Europe, 1900 MHz to 1920 MHz and 1910 MHz to 1930 MHz spectrum is available in several countries.

• 1880–1900 MHz in Europe, as well as South Africa, Asia, Hong Kong,[31] Australia, and New Zealand
• 1786–1792 MHz in Korea
• 1880–1895 MHz in Taiwan
• 1893–1906 MHz (J-DECT) in Japan
• 1900–1920 MHz in China (forbidden)
• 1910–1920 MHz in Brazil
• 1910–1930 MHz in Latin America
• 1920–1930 MHz (DECT 6.0) in the United States and Canada

• Carriers (1.728 MHz spacing):

• 10 channels in Europe and Latin America
• 8 channels in Taiwan
• 5 channels in the US, Brazil, Japan
• 3 channels in Korea

• Time slots: 2 × 12 (up and down stream)
• Channel allocation: dynamic
• Average transmission power: 10 mW (250 mW peak) in Europe & Japan, 4 mW (100 mW peak) in the US

Source: https://en.wikipedia.org/wiki/Digital_enhanced_cordless_telecommunications