Special meetings may be called at any time by the mayor, or by three or more council members, by delivering written notice to each council member and to each local newspaper of general circulation, radio or television station requesting notice in writing and by posting notice pursuant to Section 1-3-12 of this code. Notice must be delivered personally or by any other means and shall be received at least twenty-four hours before the time of the meeting as specified in the notice. The call and notice shall specify the time and place of the special meeting and the business to be transacted. No other business shall be considered. Written notice may be dispensed with as to any council member who at or prior to the time the meeting convenes files with the city clerk a written waiver of notice. Such waiver may be given by telegram. Written notice also may be dispensed with as to any council member who is actually present at the meeting at the time it convenes. (Ord. No. 935, § 2 (part); Ord. No. 1317, § 2 (part).)