If you're calling into an automated dial-in system (e.g., voicemail) and your dialpad entries aren't being recognized, view this info.
Dual-tone multi-frequency (DTMF) tones are used by automated dial-in systems such as voicemail or where prompts are used to navigate.
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From the Home screen, press the left soft key to choose Menu.
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Select Settings.
Utilize the 5-way navigation pad to highlight and the center button to select.
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Select Phone Settings.
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Select Advanced Settings.
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Select DTMF Tones then select an option:
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Select OK.