Archived sounds
Modems yodeling
The boop-boop-hoop
Of someone’s phone busy

Back further: the
Thwick-bop-bob-bop
Thwick-bop-bob-bop-bop
Of a rotary dial

Further back:
The piercing
Berrrrrrrrrrrrrrr!
Of the 3am TV test signal

Why stop there?
Cha-clump; Cha-clump, Cha-clump; Cha-clump
Milk bottles rattle
Cream at the top
Milk truck’s come and gone