Question Summary:
Is it permissible for a woman to give the Adhan to a newborn?

Question Detail:

I wanted to find out whether it is allowed for women to do azan on a newborn child? Is there difference of opinions as I know some woman practice this. 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
 
If there are no males present to perform the Adhan, then a woman may perform it.[1]
 
And Allah Ta’āla Knows Best 
Saleem khan
Student Darul Iftaa
Bradford, UK
Checked and Approved by,
Mufti Ebrahim Desai.
www.daruliftaa.net