Learn how to enter additional numbers when required during a phone call to reach extensions, choose from numeric menus, use a credit card, leave a voice mail, or conduct any other type of communication that requires touch-tone signals.
Note: "Touch-tone" is also known as Dual Tone Multi-Frequency (DTMF), the system used by touch-tone phones.
If you still have questions or need additional assistance, please contact the ITS Service Desk. You can call us at (858) 246-4357, email us at support@ucsd.edu, or submit a ticket at support.ucsd.edu,