InterestedOne, you must have been confused by Inside Man's choice of words. Let me make it into plain English. At conventions and assemblies there is the baptismal talk, where the baptismal candidates stand and answer a big "YES" to the two baptismal questions. Then the speaker tells them that by their affirmative answer they are eligible for baptism as "ordained ministers of Jehovah God". Most protestant denominations agree to this so-called "universal priesthood of all believers".
In the Watchtower organization there are publishers (unbaptized and baptized), pioneers (auxiliary, regular, and special), ministerial servants, elders, traveling overseers (circuit and district overseers), branch personnel (a."Bethel family" members). In the 2011 Yearbook, on the bottom of page 31, there is the following text printed: "Worldwide, a total of 20,062 ordained ministers staff the branch facilities. All are members of the Worldwide Order of Special Full-Time Servants of Jehovah’s Witnesses." This expression implies two things: (1) all these 20,062 Bethel family members are baptized as Witnesses of Jehovah, and (2) they are members of this order (terms & conditions apply to membership and appointments are invitation-only). Requirements for different tasks within Bethel service are varying. Basic requirements are exemplary status in the congregation (which applies for all the privileges), and a certain amount of time in regular pioneer service.