(3) At any argument on a question of law or at

any conference, except a disposition conference pursuant to Section 39-13; (4) In proceedings involving a reduction of a sentence under Sections 43-21 and 43-22; and (5) In proceedings in which the defendant other- wise waives his or her right to be present. (b) If ordered to be present by the judicial authority or if required to be present for a disposi- tion conference pursuant to subsection (a) (3) of this section, the presence of the defendant may, in the discretion of the judicial authority and, in the case of such a disposition conference, with the consent of the defendant, be made by means of an interactive audiovisual device. Such audiovi- sual device must operate so that the defendant, his or her attorney, if any, and the judicial authority can see and communicate with each other simul- taneously. In addition, a procedure by which the defendant and his or her attorney can confer in private must be provided. (P.B. 1978-1997, Sec. 970.) (Amended December 19, 2006, to take effect March 12, 2007.)