crosextra-caladea	Sans-serif font metric-compatible with Cambria font.
crosextra-carlito	Sans-serif font metric-compatible with Calibri font.
fonts-liberation		Fonts with the same metrics as Times, Arial and Courier.


Equivalents table:

PostScript name		MS name		Free metric-compatible font
Helvetica		Arial		Liberation Sans 
Times		Times New Roman		Liberation Serif
Courier		Courier New		Liberation Mono
Helvetica Condensed		Arial Narrow		Liberation Sans Narrow 
NA (no PS font)		Cambria		Caladea
NA (no PS font)		Calibri		Carlito 
