moony, when tx'ed from a Mil controller having had joining clearance, civil then should give a service (FIS/RIS/RAS(!)/RCS) and at UK centres, a routing. Should the a/c be outside and also need climb/descent I normally just re-issue the joining clearance with the new FL/waypoint/heading and give the full routing afterwards. If an a/c has come from another sector, I just say 'roger' or good morn/after/evening unless I can improve the level or route.