ELP MISCOMS INCIDENT CAUSED GAR WITH A B737-700 HOLDING IN POS FOR TKOF. APPARENT ERRONEOUS CLRNC READBACK MISSED BY ELP LCL CTLR.

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HOLDING SHORT FOR TKOF; WE WERE GIVEN INSTRUCTIONS TO TAXI INTO POS AND HOLD BY TWR. AT THE SAME TIME; COMS ON VHF #2 BLOCKED MY ABILITY TO HEAR THOSE INSTRUCTIONS; BUT I DID HEAR MY FO RESPOND; 'COMPANY #; TAXI INTO POS AND HOLD.' I WAS MONITORING VHF #2 AS REQUIRED BY OUR FOM. AN ACFT WAS STATED TO BE ON AN 8 MI FINAL. 2 ACFT TOOK OFF PRIOR TO US. WE WERE IN POS AND HOLD APPROX 45 SECONDS WHEN THE ACFT ON FINAL WAS SENT AROUND. TWR THEN SAID; 'COMPANY #; I TOLD YOU TO HOLD SHORT.' MY FO RESPONDED THAT WE WERE TOLD TO TAXI INTO POS AND HOLD AND READ THAT BACK. THERE WAS A LONG SILENCE; THEN WE WERE CLRED FOR TKOF. I ASKED TWR IF THERE WAS A PROB AND HE SAID; 'NO; I WON'T BE FILING A RPT. A MISUNDERSTANDING JUST CAUSED A GAR.' TKOF WAS MADE WITH NO FURTHER COMMENTS. AFTER DEP OUT OF 10000 FT; I CALLED BACK TO TWR AND ASKED IF OUR SIT HAD BEEN RESOLVED AND TWR SAID; 'I'M DONE WITH IT; IF YOU'RE DONE WITH IT.' OF COURSE I SAID I WAS DONE WITH IT. I'M CONFIDENT THIS SIT WAS OVER AFTER TWR'S STATEMENT AND THAT IT WAS HIS MISTAKE NOT OURS. IN THE FUTURE; I WILL TURN OFF VHF #2 WHEN APCHING THE RWY TO PRECLUDE MISSING IMPORTANT RADIO CALLS. SUPPLEMENTAL INFO FROM ACN 573867: I HEARD AND REPEATED BACK 'COMPANY #; TAXI INTO POS AND HOLD' AND THE CTLR ALSO STATED RJ TFC ON AN 8 MI FINAL. WE ACCOMPLISHED THE CHKLIST AND WAITED APPROX 1 MIN IN POS. THE CAPT LATER TOLD ME HE ACTUALLY DIDN'T HEAR THE TWR COMPLETELY BECAUSE COM #2 PARTIALLY BLOCKED IT.