So you will be on a business visa until your RP comes through all you have to do is tell your company when you are going and they will apply for a exit visa which is just a piece of paper really saying you are allowed to go and they will also get you the entrance visa for when you come back!

You can go wher you like just remember to check if you need a visa for the other countries you wish to visit!

Also make sure they have done your business visa before you fly out so it is sorted for when you land!