Except as otherwise provided by these rules or by order of the Court or a judge, a deposition is not to be given in evidence at the hearing or trial of a proceeding without the consent of the party against whom the deposition is offered, unless the deponent –

(a) is dead; or

(b) is beyond the jurisdiction of the Court; or

(c) is unable because of age or sickness or other infirmity to attend the hearing or trial.