isochronous

samanaikainen, isokroninen happening at regular intervals
happening at the same time; isochronal
puhekieltä of or pertaining to the use of clocks derived from the same clock reference

Their entire national telephone network is isochronous, with a clock distribution tree radiating from a single, protected cesium reference clock.

These packets belong to an isochronous voice application and need priority handling.