Here are the frequencies used for cordless telephones (Mhz) :

46.61  (1)46.63  (2)46.67  (3)46.71  (4)46.73  (5)46.77  (6)46.83  

(7)46.87  (8)46.93  (9)46.97  (10)49.67  (1)49.77  (4)49.83  (6)49.845 

(2)49.86   (3)49.875 (5)49.89   (7)49.93   (8)49.97   (10)49.99   (9)