I have been doing some research on the Christadelphians and I think they allow women to handle certain administrative responsibilities but not to preach from the platform or to pray form the congregation. But let me check my notes at home...I could be confusing them with a Bible Student ecclesia. The same could happen in the WTS congregations. I have heard elders suggest sisters handle microphones (and known of it happening in small congregations) and sisters doing the accounts and auditing behind the scenes. Sisters work in accounting at Bethel.
Blondie