dial up
• access a computer system or service remotely via a phone line.
• "dialling up each time we want to use the internet will become a thing of the past"
• adjust the control on an electrical device so as to increase the level of sound, light, heat, etc. produced.
• "even with everything dialled up to full, the audio output level was only moderate at best"
dial-up
adjective
• (of a computer system or service) used remotely via a phone line.
