What is the ruling on repeating the Adhan and the supplication after the Adhan following the radio broadcast of the Adhan?

It is permissible to answer the call to prayer broadcast from a radio if it is being aired at the time of prayer, based on the Prophet's (peace be upon him) saying: "When you hear the caller to prayer, say as he says," and his saying (peace be upon him): "Whoever says upon hearing the call: 'O Allah, Lord of this perfect call and the standing prayer, grant Muhammad the Wasilah and the Fadilah, and raise him to the praised station which You promised him,' my intercession will be due to him on the Day of Resurrection."