受付 うけつけ不可 ふか信号 しんごうだったら
kikōketsukefukashingōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 着呼受付不可信号

1. If it were a no-acceptance signal.; If it's a no-acceptance signal.

Tara Conditional
Computing