Nokia 2170 Nokia 2170 User Guide in English - Page 57
Touch Tones, Touch Tone Settings
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10. Touch Tones Your phone can generate various sounds, called Touch Tones, when the keys are pressed. Touch Tones can be used for many automated, overthe-phone services such as checking bank balances, airline arrival and departure times, and using voice mailbox options. Touch Tones can be sent only when a call is active. What is DTMF? Touch Tones are also known as DTMF, which means Dual Tone Multi-Frequency, and they are generated either manually or automatically. Note: Individual Touch Tones can be sent manually only if 0HQX 4 3 is set to On. Touch Tone Settings Menu 4 3, Manual DTMF Tones This setting determines how long touch tones are produced as you press the keys on the keypad. &RQWLQXRXV means the tone sounds for as long as you press and hold the key. )L[HG sets the tone length to .1 seconds, regardless of how long you press the key. 2II turns the tones off, and no tones will be sent when you press the keys. The default setting for this feature is )L[HG. Menu 4 4, Auto DTMF Length This feature determines the length of each Touch Tone when they are sent automatically. 6KRUW sets the tone length to .1 seconds. /RQJ sets the tone length to .5 seconds. The default setting is 6KRUW. 50