Old hospital units (PB, East, West): 340-xx
“xx” is unit number (E30 = 34030)

New hospital units (Heart): 530-xx
“xx” is unit number (H52 = 53052)

Calling room numbers
H4000 = 5 – 44xx (last 2 digit of room number)
H6000 = 5 – xxxx (4 digit room number)
H7000 = 5 – 37xx (last 2 digit of room number)
H7200 = 5 – 47xx (last 2 digit of room number)
H8000 = 5 – 38xx (last 2 digit of room number)
H8200 = 5 – 39xx (last 2 digit of room number)