my other is calling me even at work

Well, sure that the constant phone calls at work, could lead to discontent on the part of your superiors. I can only advise you to explain to this woman during working hours, do not phone or at least try to limit calls to a minimum. Can not you have problems at work because you come constantly called! Of the various problems, you and her, it can just talk to the outside.

Hi there jon, why don't you tell her not to call her when in office as it is prohibitted to use cell in your office. I'm sure she will understand and not disturb you. It is as simple as that.

Hi Jon, You should just turn your phone off while you are at work. Our boss does not allow it either. We have to turn ours off. If he catches us on them or if he even hears them ring, we get a warning.

Better turn off your phone during working hours if you can't stop your other woman to keep on calling you. That's the only think I can think of to stop her from calling. At least you will be safe from being terminated because of not following your work rules.

Now one whether you are busy or not. This the reason why every one calls you. I think it is bettter to keep the phone switched off so that they don't disturb you.