to adjust the contrast, you have to hit the store button, then the arrow keys, which are the two little keys next to the caller id screen. you will then scroll thru the menu. it will eventually come to the contrast. then you use the arrow keys to move it to a darker shade. and hit store again, to store it.
I have a Sakar HT-848CL. When on the phone & I have another call beeping the flash button does...
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I have a Sakar HT-848CL. When on the phone & I have another call beeping the flash button does not switch to the second call. Is there a switch I need to set to get it to function correctly?