When I make phone calls from my SprintPCS phone, the caller ID shows "unavailable" but displays my correct cell phone number. It is supposed to display my business name and cell phone number. I live in an area whose wires are maintained by Southwestern Bell or SBC but my local phone service is from Sage Telecom. I have called SprintPCS serveral times but they say it is the local wire company's problem. I called Sage and they said that they have no control over that and to call ATT since they maintain the Caller ID database. Anyone have any suggestions as to what is causing this problem and whom I can call to get this problem corrected???