I haven't received any phone calls; it seems no one can call me

Inside Testing: Possible trouble on one phone or piece of equipment can cause trouble on the telephone line until that piece of equipment is removed.

If you are unable to receive calls, try the following:

First verify that your telephone ringer is turned on
Check whether or not your Call Forwarding Service has been turned on.
Unplug all of the telephones, answering machines or fax machines, caller ID units, and computers from the wall or baseboard jacks inside your home. (If any of the above equipment is powered by an AC adapter, unplug it from the AC outlet also).
Next, try one of the phones in several of the jacks. If the phone does not work in a any of the jacks, then try a different phone.
If the second phone works then the first phone you used may have been causing the trouble.