Answered by Shaykh Faraz Rabbani
if i am praying an obligatory prayer alone, do i need to say the adhan and iqama? if so, how should i give each? does it suffice just to say to stand and say the words in a soft tone?

Walaikum assalam wa rahmatullah,
I pray that this finds you well, and in the best of health and spirits. May Allah grant you all good and success in this life and the next.
It is sunna for men to give both the adhan and iqama (even if only quietly), even when praying alone. [ Shurunbulali, Maraqi al-Falah ]
And Allah alone gives success. Faraz Rabbani