[damiankennedy]

Some phones had a slot where you could insert made to fit cards with common numbers.

[cbsks]

Some had custom numbers that could be dialed by pressing the “mem” key followed by a number key. There would be a little slip of paper which you would write in “1: Grandma, 2: Dad work…”. Simpler times.

[kid64]

This is called "speed dial" and it's still a standard feature on desk phones.

[thejazzman]

You know, in the year 2000, we'll all be on speed dial.

https://amphetamem.es/meme?id=seinfeld_08_20_145&timestamp=0...