As I was saying is used to pick up a thread that got interrupted. As I was saying before the phone went.
It reclaims the floor politely, and it carries a small reproach to whoever broke in. It works only when the audience remembers what the thread was.
1phraseas i was sayingSaid to pick up a thread that got interrupted.
“As I was saying, the roof will have to come off.”
as i was saying is a phrase.
Practised in Small Talk & Everyday Phrases