File:DTMF keypad layout.png
Add Category:Telephone keypads
← Older revision
Revision as of 01:26, 31 March 2013
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{{vva|DTMF keypad layout.svg}}
{{vva|DTMF keypad layout.svg}}
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[[Category:Telephone keypads]]
[[Category:Dual-tone multi-frequency signaling]]
[[Category:Dual-tone multi-frequency signaling]]