We have been receiving numerous dead air calls from this number and approximately 25 other numbers from random locations.  It seems to me that it may be computer generated.  These calls are coming through on my toll free number.  Our provider for our toll free service is Select Com.  If anyone else has the same situation, I would like to know. We will be disconnecting the service because this has become such a problem. Note: our toll free number is not usable by local callers yet one of the numbers was local. (all listed on my toll free bill)