dial in
• access a computer system or service remotely via a phone line.
• "there's no need to dial in to see if you have mail"
• call a phone number by turning a dial or using a keypad or touchscreen.
• "it took only a moment to dial in the numbers"
• set or regulate something by means of a dial.
• "you're expected to dial in volume and tone settings"
• be or become so focused that one is able to perform to the best of one's abilities.
• "I didn't really get dialled in until the final qualifying session"
dial-in
adjective
• another term for dial-up.
