If a mediation conference does not result in an agreed upon resolution of the case at the close of the mediation session, the mediator and the parties must jointly determine whether it would be appropriate to schedule a follow up session.  Such follow up could include, but need not be limited to, written or telephonic reports that the parties might make to one another or to the mediator, exchange of specified kinds of information, or another mediation session.  The mediator may, to the extent agreed upon by the mediator, the parties, and the court, stay involved in the case following mediation and up to the time of trial to continue to facilitate resolution.