First of all thank you very much to truckflyer for the detail ans.
Also spcl thanks goes to 747jj for sharing your real life experience..
Sorry 747 have some more for you
1. what type of visa was it? (crew/bussiness), was it a long term visa (single entry/2yrs/3yrs/5yrs)
2. Do you need to take visa for diff diff schengen country you operate or you just take one multiple entry visa from any country and use it for whole schengen area?
Thanking you
Take care mate..