Focus on the pronunciation of dial up
English definition of “dial up”
dial up — Phrasal Verb with dial
/daɪəl/ verb [I or T] (UK -ll-, US -l-)
› [I or T] COMMUNICATIONS to call a telephone number: I dialled up the answering service and found two messages. Someone had found his office number on an internet phone directory and dialed him up.
› [I or T] INTERNET, COMMUNICATIONS to connect to a network or to the internet using a dial-up modem: The broadband connection is always on, so there's no need to dial up any more.