The sentence below is taken from a light novel.
声をかけようかどうしようか迷っていたら、ほんの一瞬風が止んだ
I don't understand what 「かけようかどうしようか」 means. Is it an expression? This light novel sometimes omits kanji and I'm wondering if there should be kanji in here or not. I know that 「どうしようか」 is like “What should I do”, but I have no idea what 「かけようか」 is.