Norman Hospitals security I believe old callsign WPBT292 on
461.200 and is a repeater ( It appears that license has expired but still in use).
155.385 is what out of town EMS use to contact the ER i.e Noble, Wadleys from Purcell etc.
They have another UHF repeater for maintainance but I can't find my notes on that yet. It is an old business freq like 464.??
The 163.25 freq used to be the in house paging freq. However it was used with old Motorola tone and voice pageboy II's. They seem to have farmed out the paging to outside people for employees on call. My wife has a 900 Mhz pager in her dept.
Ken
P.S. The maintainance freq is 464.675 still in use with an expired FCC license.