What is the ruling concerning making up consecutive missed prayers when praying alone?

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When making up consecutive missed prayers alone, the recommendation for the Adhan is lessened because the purpose of the Adhan is to inform others, which is not needed when praying individually. Imam Ahmad was reported to have stated that a person making up missed prayers should call Adhan once and then Iqamah once, reciting all the missed prayers consecutively, viewing this as an ease in the matter.