got a binatone combo 2300 cordless. Works fine. But every so often, the cordless handset will make a series of loud beeps. There's 2 types, a two tone low-high, and a few seconds later a 3 note dir-der- dah ...
Battery is fine, and the base unit is about 6 m away in another room.
Can anyone shed any light. Manual says nothing about these noises - they are quite different to the intercom page feature .....