PF doesn't indicat that he has contol and radios orally, duties autotrans when he calls ECAM actions,so I mean radios should go back automatically to PNF if ECAM is stoped for a while as well. And as soon as PF resumes ECAM actions completion by the Continue ECAM he has both duties again automatically. Or PF contols&communicates untill full completion of ECAM despite the ECAM action stops?