Airport Handling frequency
Hello,
I've been wondering for quite a while what the handling frequency is about - for example, at the charts for ESSA, it might say: Arlanda Handling: 131.450? At what point would pilots have to call that frequency, and what are they actually handling? Since, the normal ground operations are communicated via the interphone between the flightdeck and the ground personell, I don't really see why there's a frequency that is called handling at most airports.
Thanks in advance.