Not sure what the problem is exactly;
you should be able to get a total of
12 async users and 18 sync users connected
at the same time. If you have a 13th
async user trying to connect, it won't
work since you don't have an available
modem.
If it looks like you have async users
that are connecting and then disconnecting,
but you don't see the line/modem being
cleared, then you first may want to try
upgrading your code (at least 12.0(7)T,
but latest 12.1 would be better).
