All parties subject to mandatory mediation requested by an out-of-network provider that is a facility or a health benefit plan issuer or administrator under this subchapter must use best efforts to coordinate the informal settlement teleconference required by Insurance Code §1467.054 (concerning Request and Preliminary Procedures for Mandatory Mediation). The parties or representatives of the parties must arrange a date and time when the parties or representatives of the parties can participate in the informal settlement teleconference, which must occur not later than the 30th day after the date on which the party submitted a request for mediation, unless the parties agree to extend the deadline.