採用(さいよう)担当者(たんとうしゃ):「面接(めんせつ)の結果(けっか)は電話(でんわ)を以(もっ)てご連絡(れんらく)いたします。」
Recruiter: "The results of the interview will be communicated to you by phone."
Aをもって is often used when (in formal circumstances) someone will be informed about the results of something (exam, interview, decision) by means of A.