In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

International direct dialing ( IDD ) or international subscriber dialling ( ISD ) is placing an international telephone call that is dialed directly by a telephone subscriber , rather than by a telephone operator .
International Direct Dialing ( IDD ) is an international telephone call dialed by the caller rather than going via an operator .