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