List of figures Figure 1: Table showing the keys and frequencies relationship. Figure 2: Tone frequency for the “1” key. Figure 3: Telephone wiring in different countries. Figure 4: Block diagram for a 1-to-4 line de - and Tone - Document - PDFSEARCH.IO

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	List of figures Figure 1: Table showing the keys and frequencies relationship. Figure 2: Tone frequency for the “1” key. Figure 3: Telephone wiring in different countries. Figure 4: Block diagram for a 1-to-4 line de Add to Reading List Document Date: 2011-10-03 04:01:18 Open Document File Size: 260,93 KB Share Result on Facebook

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List of figures Figure 1: Table showing the keys and frequencies relationship. Figure 2: Tone frequency for the “1” key. Figure 3: Telephone wiring in different countries. Figure 4: Block diagram for a 1-to-4 line deAdd to Reading List