So you deny the Quran when it says it is fully detailed?
Where does the Quran say you cannot pray naked when alone? Where does it say you cannot wear silk clothes and must use a tree branch to clean your teeth? You have your hadith to tell us how to call, how to wash our behinds, how to instantaneously divorce our wives etc, when the Quran says it is all we need, the best hadith, the only hadith, the hadith the Messenger followed and told to SAY.
Your question on how to call has been answered my me before but hear now what the Quran says to you about your persistence to know every detail when the Quran says it contains sufficient knowledge for us:
5:101 O You who have chosen to be graced with belief! Do not ask unnecessary details of things (as the Israelites asked of Moses about the cow 2:68.) This attitude may bring unpleasant consequences for you. But if you ask them as the Qur’an is being revealed, the minor details of Ordinances might be given which will be hard for you to follow. God pardons you in this respect. For, God is Forgiving, Clement. [The general rule has been given that all pure and good things are permissible to you. Your questions are very clearly answered in the Qur’an 5:15, 15:1, 22:40. The Qur’an is for all times, and while the basic Laws and Principles remain immutable, minor details are intended to be flexible according to temporal and spatial requirements 11:1. This Day I have perfected your religious law for you, completed My favor upon you, and chosen for you Al-Islam as the Way of Life. 5:3]
Things are left for you and ever changing societies to work out and the example of the Messenger was to follow the Quran alone; he did not make his so called sunnah a binding duty upon us.
5:102 Some people before you asked such questions and then rejected the instructions. [2:68]