B737 LOST ALL COMS WHILE ENRTE.

Narrative

APPROX 20 MINS AFTER TKOF; #2 NAV FAILED. WE WERE ON A RADAR VECTOR TO LBL VOR; THEN FLT PLAN RTE. AT THE SAME TIME A LOUD AUDIO SQUELCH SOUND WAS BLEEDING THROUGH #1 COM. WE TRIED TO CALL CTR WITH NO RESPONSE. TRIED SEVERAL FREQS ON BOTH #1 AND #2 COMS. WE SUSPECTED WE MIGHT HAVE A STUCK MIKE. WE UNPLUGGED ALL MIKES IN COCKPIT; AND TRIED EACH ONE INDIVIDUALLY; STILL NO HELP. TRIED TO COMMUNICATE WITH COMPANY THROUGH ACARS; AT THIS TIME THE ACARS DISPLAYED A NO COM MESSAGE AND STARTED ROLLING THROUGH ITS INITIALIZATION SEQUENCE. WE WERE IN A NO COM SIT. WE SQUAWKED 7600 FOR APPROX 2 MIN. THEN RETURNED TO LAST CODE. WE PROCEEDED DIRECT TO LBL AND CONTINUED ON FLT PLAN RTE. I HAD A DEADHEADING PLT USE MY CREDIT CARD AND THE AIR PHONE TO CALL OUR DISPATCHER. WE WERE ABLE TO GET A 3 WAY PHONE PATCH BTWN DISPATCH; ZKC; AND OKC APCH AND TWR. APPROX 50 MI W OF OKC; WE RECEIVED DSCNT CLRNC OVER THE PHONE. APPROX 10 MI W OKC; TWR RELAYED THEY HAD US IN SIGHT AND GAVE US LNDG CLRNC. WE ENTERED R TFC FOR RWY 17R; AND RECEIVED A GREEN LIGHT ON FINAL; WHICH CONFIRMED OUR LNDG CLRNC. THE LNDG WAS NORMAL AND FOLLOWED BY A GREEN LIGHT TO TAXI TO THE GATE. DURING THIS EVENT; WE COMPLIED WITH ALL NO COM PROCS; AND TRIED TO THROW IN A LITTLE GOOD JUDGEMENT AND COMMON SENSE. ALL WORKED OUT WELL.