If more than one mu'adhdhin calls the adhan, does the listener repeat after one of them or after every mu'adhdhin?

The Shaykh : He says: If more than one mu'adhdhin calls the adhan, does the listener repeat after one of them or after every mu'adhdhin? And if he hears some of them and then their voice becomes faint amidst the differing voices, what does he do?
It appears that he should follow the first one, the first person he hears, and only follow him, so that the adhan does not overlap with itself. Muhammad al-Sulami, yes.