Correct. There is no direct correlation between DSPs (modems) registered in
the PM3 modem pool, and the CT1 or PRI DS0s. However if the PM3 is
configured PRI with modem cards installed and all set to off (removed from
the READY pool), upon an incoming call , the PM3 will issue a cause code 17
to the switch which means user busy. In PRI terms, it likes a busy signal.
So if you have a hunt group, the call will roll over to the next available
line.
-- Marty Likier Product Marketing Mgr. marty@livingston.com