It is not possible, and probably won't ever be, on the PM2 series.
One possibility is using Linux's EQL modem load-balancing which is
compatible with Livingston's own load balancing for modems which DOES work
on the PM2.
On Sun, 13 Apr 1997, Jason Hatch wrote:
> We have a customer who wants to get 2 dedicated 33.6 connections to us.
> The way he wants it to work is to have him dial into us 2 times at 33.6
> and have a total of 67.2kbps. Is this possibile with a portmaster or
> radius? If not, does anyone have any ideas on how this can be done?