Michigan Compiled Laws, Chapter 450. Corporations § 450.2521

Sec. 521. (1) A board may hold regular or special meetings of the board either in or outside of this state.

(2) A board may hold a regular meeting with or without notice as prescribed in the bylaws. A board may hold a special meeting after giving notice as prescribed in the bylaws.A director's attendance at or participation in a meeting waives any required notice to him or her of the meeting unless he or she at the beginning of the meeting, or when he or she arrives, objects to the meeting or the transacting of business at the meeting and after objecting does not vote for or assent to any action taken at the meeting. Unless required under the bylaws, notice or a waiver of notice of a meeting does not have to specify the business to be transacted or the purpose of, the regular or special meeting.

(3) Unless otherwise restricted in the articles of incorporation or bylaws, a member of the board or of a committee designated by the board may participate in a meeting by means of conference telephone or other means of remote communication if all individuals who are participating in the meeting can communicate with the other participants. Participation in a meeting under this subsection constitutes attendance in person at the meeting.