Is the notice of labor arbitration hearing by SMS or email?

Dear, it's an honor to answer your question! The notice of hearing in labor arbitration cases is generally written and served on both parties. If both parties agree, they can also serve court subpoenas, notices and other litigation materials by SMS or electronic delivery. If the arbitration tribunal has served a copy of the application and evidence materials on the respondent before notifying the hearing, it may also notify the hearing by telephone.