Wireless Caller

Facts:

We (wife and I) have a comcast (xfinity)land line.

Both our iPhones are version 11

Both iPhones purchased via Xfinity

All settings on both phones (with respect to calls) are identical.

When my wife uses her cell to call our land line we see her name and number.

When I use my cell to call our land line it shows 'Wireless Caller'

Question:

Why?  and how do I fix so it shows my name and number?

thanks.