FLC ACFT IN POS AND HOLDING ON RWY WAITING FOR TFC TO CLR WHEN TWR CLRED A HELI (OFF THE RWY) FOR TKOF. FLC MISTOOK CLRNC FOR THEM AND ROGERED THE TKOF CLRNC WITH THEIR CALL SIGN WHICH WAS MISSED BY THE TWR CTLR. TWR TRIED TO CONTACT THE HELI TO STAY S OF RWY; BUT WHEN UNABLE HAD RPTR FLC ABORT. TWR APOLOGIZED FOR MISUNDERSTANDING.

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B727 CREW BELIEVED TKOF CLRNC WAS GIVEN TO US AND FO READ BACK CLRNC WITH NO REPLY FROM TWR. ON TKOF ROLL SEVERAL CALLS FROM TWR WERE MADE TO A MIL HU53 HELI DEPARTING FROM THE E OF RWY 17 TOWARDS THE W; TO 'REMAIN E OF RWY 17.' NO REPLY WAS HEARD FROM THE HELI AND NO ACTION WAS TAKEN BY HELI TO COMPLY. TWR THEN DIRECTED B727 TO ABORT TKOF. WE DID SO AT 80-90 KTS WITH NO PROBS. AS WE WERE ABORTING; THAT IS WHEN HELI FINALLY MADE A TURN AWAY FROM RWY 17. AS B727 CREW EXITED RWY; TWR APOLOGIZED FOR MISUNDERSTANDING AND TOLD US TO SWITCH TO GND. AFTER ARRIVING BACK IN DENVER; WE WERE DIRECTED TO CONTACT ABQ TWR. THEY SAID THEY REVIEWED THE TAPE AND FOUND THAT WE HAD READ BACK A TKOF CLRNC FOR THE HELI. HOWEVER; TWR NEVER DID REPLY WITH A NEGATIVE OR OTHERWISE. I THINK; B727 CREW; WE ASSUMED IT WAS OUR TKOF CLRNC DUE TO THE FACT THAT WE WERE POS AND HOLD ON RWY 17; WHILE A TWIN ENG PROP COMPLETED LNDG ROLL ON RWY 17 AND CLRED RWY. ONCE HE WAS CLR; WE EXPECTED; OUT OF HABIT; THAT WE WOULD RECEIVE TKOF CLRNC NEXT. I WAS COMPLETELY UNAWARE OF A MIL HELI SQUADRON OPERATING OUT OF ABQ.