u can draft some policy regarding usage of mobiles,
but dont think u are some person in a fair handing out pamphlets to visitors,,,
because if you think of handling memo to employee, its unfair, and you policy should state that usage of mobiles inside office premises in banned, or if anyone gets a call he can go out and speak,
dont invade the privacy of employees, and first tell can u stop the top management from taking mobile calls inside their air conditioned cabins.
If you are so much strong why not install a mobile jammer inside the office so that no one can use their mobile..
Though your policy idea seems ok the memo idea seems not ok.,, hope u tell me what trouble ur facing regarding mobiles,, as in my company everyone uses mobiles, and speaks but it does not harm . affects the other person / staff,, and what if official discussions are done on mobile,, how can u issue a memo for that,, please clarify me.
25th September 2007 From India, Pune