Cisco SPA941 Administration Guide - Page 166
Miscellaneous Parameters, DTMF Notes
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8 Configuring Regional Parameters and Supplementary Services Miscellaneous Parameters Miscellaneous Parameters This section contains both DTMF parameters and localization parameters: • DTMF Notes, page 164 • Localizing Your IP Phone, page 165 • Managing the Time and Date, page 167 • Configuring Daylight Savings Time, page 167 • Daylight Saving Time Examples, page 168 • Selecting a Display Language, page 169 • Creating a Dictionary Server Script, page 171 SPA 9X2 WIP310 DTMF Notes Dual Tone Multi-Frequency (DTMF) is the system used by touch-tone phones. DTMF assigns a specific frequency (consisting of two separate tones) to each key so that it can easily be identified by a microprocessor. 164 Cisco SPA and Wireless IP Administration Phone Guide