Is there any way to set the actual dialer enable-timeout when using dialer pools in 12.4(16a)? You can't apply it to the physical interface as long as it is a member of a dialer pool and if you apply it to the dialer interface itself it has no effect on the physical interface (which remains at the default of 15 seconds).
I'd be happy to use rotaries rather than pools, but sometime after12.4(5) they broke support for vpdn dialers such that if a rotary has both physical interfaces and a vpdn group the vpdp group is never used.
Another funny thing about 12.4 dialer pools: when a physical interface is up the "dialer group" line from the dialer interface is actually added to the physical interface in the running configuration. If you save the running configuration to startup while the line is up this "dialer group" line provokes an error at the next restart because dialer group commands aren't allowed on pool members...
Dan Lanciani ddl@danlan.*com