After getting stamp in your RP you have to pay a small fees to convert Muscat D/L to Qatari D/L. It does not matter whether you are employed or not. more info you will get here in QL.

But I want to know if you dont mind, why did u come to Qatar? Is Muscat not a good place to work or what? It would be increasing in my information.

best of luck.

Respect 4 Everyone