The five conditions of the call to prayer,
1. To be pure, that is, to perform ablutions, 2. Facing the qiblah، 3۔ To be covered, 4. It is time for prayers – because it is not permissible for any prayer to be called before its time، 5. Saying the call to prayer while standing. It is better to say the call to prayer while standing in a high place.
The call to prayer is Sunnah for all obligatory prayers, that is, it is Sunnah for the five daily prayers and for the Friday prayers. For example, Taraweeh prayer, Witr prayer, Funeral prayer, Eid prayer, Eclipse prayer and Fear prayer, etc. These are the prayers that are not obligatory but sufficient
Azan Masjid Nabawi (Madina Munawara) Beautiful Voice