Hi james,
I see that there has been no responve on this for a few days. To help we will need some more information.
You have a Rls 4.5 PBX.
You say that you have calltakers waiting, do you have Symposium ?
How are the calls routed ?
Can you call, a call taker direct and do they answer.
As much info as you can gives us a place to start.
Paul