I second the " most friendly and add polite Omani security guy" . He is always smiling and talking nice to everyone.

Visa section timing SAT,SUN,TUE&WED 9-11am. Mondays are off. Telephone 24691101. Fee for visa is 33 OMR

This place has the friendliest. Security guard on duty ... Make sure u wish him on your way in

Visa section timing: SAT,SUN,TUE & WED 9-11am. Mondays off. Telephone 24691101. Schengen visa fee 33 RO