This preferred embodiment includes a network diagnostic device that connects to the inter messaging network and requests a test data file to be retrieved from {TAIL ~ all the voice mail sub systems} in {HEAD ~ the inter messaging network} 
This preferred embodiment includes a network diagnostic device that connects to the inter messaging network and requests a test data file to be retrieved from { TAIL ~ all the voice mail sub systems } in { HEAD ~ the inter messaging network }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD