TYS CTLR INITIATES ZTL COORD TO RESOLVE NO RADAR HDOF ON INBOUND; IFR; BE58.

Narrative

I OBSERVED THE DATA BLOCK OF THE BE58; ALTHOUGH NOT THE ACFT TARGET; APCHING MY AIRSPACE BOUNDARY FROM THE S. I THEN INITIATED 2 CALLS TO THE LOW ALT CTR SECTOR ADJACENT TO MY AREA TO INQUIRE ABOUT THE DATA BLOCK. I DID NOT SEE THE ACTUAL ACFT TARGET YET. THE SECTOR DIDN'T RESPOND TO MY CALLS. AFTER COMPLETING A QUICK AIR TFC DUTY; I CALLED THEM AGAIN. STILL NO RESPONSE. SO I CALLED ANOTHER SECTOR AND ASKED THEM TO NOTIFY THE PREVIOUS LOW ALT SECTOR TO CALL ME. THIS THEY AGREED TO DO. SHORTLY; THE LOW ALT SECTOR CALLED. I TOLD THEM THAT 'NON RADAR' WAS APPROVED FOR THE INBOUND ACFT WHICH NOW APPEARED TO BE IN MY AIRSPACE. THEN AFTER TAKING AN ARTS HDOF AND HAVING INITIAL CONTACT (RADIO) WITH THE ACFT; I CALLED THE LOW ALT SECTOR BACK ADVISING HIM TO BE SURE AND GET NON RADAR APPROVAL BEFORE ENTERING ADJACENT AIRSPACE. A FEW MINS LATER ANOTHER CTLR FROM THAT SECTOR CALLED ME AND THANKED ME FOR MY HELP AND UNDERSTANDING IN THE MATTER. I HAD THE IMPRESSION THAT THEY WERE IN A TRAINING (OJT) SESSION WITH 2 SCOPES (AREAS) INSTEAD OF 1 AND MAY HAVE BEEN DISTR BY SOMETHING ELSEWHERE. WE NEED TO USE GOOD JUDGEMENT IN COMBINING POS OF OP; WHETHER IT BE A SUPVR OR CTLR DECISION; AND BE AWARE OF WEAK RADAR COVERAGE AREAS SUCH AS S OF MY AIRSPACE THUS UTILIZING TIMELY COORD. THE ACFT INVOLVED WAS ALONE AND NO AFFECT TO ANOTHER.