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How to Activate Touch-Tone During a Call (Digital Phones Only)

Learn how to enter additional numbers when required during a phone call to reach extensions, choose from numeric menus, activate a pager, use a credit card, leave a voice mail, or conduct any other type of communication that requires touch-tone signals.

Note: The information on this page is generally applicable to digital phone models at UCSD. You may need to check specific information about your phone and the features available to you.

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1. Activate the touch-tone feature.

  • Initiate a call.
  • When you are asked to dial an extension or enter additional numbers, first press either 9 or the ETE soft key or the Dial Add'l Digits button, then press the additional numbers you've been asked to enter.

Note: "Touch-tone" is also known as Dual Tone Multi-Frequency (DTMF), the system used by touch-tone phones.

2. Cancel the touch-tone feature.

  • The touch-tone feature will automatically cancel when you place the call on hold or hang up the handset.

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