dial in

US /daɪəl ɪn/
UK /daɪəl ɪn/
"dial in" picture
1.

to connect to a computer system or network using a modem and a telephone line

:
•
I need to dial in to the company server to access my files.
•
Many people used to dial in to the internet before broadband became common.
2.

to adjust or fine-tune something to achieve optimal performance or a desired result

:
•
The engineers are working to dial in the engine's performance for the race.
•
We need to dial in our marketing strategy to reach the right audience.
:
fine-tuneadjustoptimizecalibratehone
:
dialdirect dialingspeed dialdial-up