H1B visa and H4 Visa query

My petition for H1B visa is approved and I filed DS-160 for me(H1B) and my
For my DS-160, the US point of contact is the company and I added HR
contact details.

What will be the U.S point of contact for my wife(H4) and contact number(I
do not have a US phone yet)?

Appreciate your help! Thank you.

This seems a redundant post.