The clerk-treasurer shall call the roll at the hour that the meeting shall have convened and, if immediately thereafter, a quorum is present, the mayor shall call the council to order and business may proceed. If a quorum is not present, the mayor may reschedule the meeting or send for the absent members. All questions concerning the absence of such members and possible actions to be taken against them shall not be determined until a quorum is present. (Prior code § 1-3-6)