Also it is not now compulsory to have a service number per call queue.
They can work on a sip address and then either an auto attendant or a
user can transfer a call to the CQ. So for e.g. if you had 2 users one
of whom speaks English and Spanish and the other who speaks English and
French you could have an auto attendant which asks whether you want to
speak in English French or Spanish. You would then have 3 call queues
albeit that the French and Spanish CQ will only have one member (but it
will still exhibit call queue behaviour) then both are members of the
English CQ. If you name your CQ's "CQ English" "CQ French" & "CQ
Spanish" (I prefix all my CQ's with CQ) then when there is an inbound
call the operator will get the pop up which will tell them which
language to answer the call in. Of course your particular scenario may
have nothing to do with languages but it neatly illustrates what you can
do.