No definitions found for 'out-of-band signaling'
Perhaps one of these:
outpensioner,
odobenus,
odd-even check,
outbounds,
out of one's head,
out of mind,
out of bounds,
outfawn,
out-of-bounds,
outpension,
odd-pinnate leaf,
odbms,
odobenidae,
oodbms,
odobenus divergens,
out of nothing,
outpoint,
outfangthef,
otto von bismarck,
out of winding,
outvenom,
out of humor,
out of one's own head,
out of wind,
out of one's time,
out-of-band,
outbound,
out of hand,
out upon,
odobenus rosmarus,
odd-pinnate