I have a wireless Panasonic, the base is mod. kx-t4300h ... and then I discovered that the headset is mod. kx-t4300r .... and maybe that is the problem for which I cannot link the headset to the base .... since the base I have reviewed all the operation and the answering machine works all right .... only the I can't anchor it to the base and the same thing I think is in good operational functioning since the keys and everything works ... I press talk and turn on the LED but about 3 seconds later it goes off giving a more pronounced beep .... I want know if the fact that the headset is a different model and that is the cause of not working with the base and in any case if it is possible to modify it to be able to use it with that base ... I appreciate your valuable collaboration ...