Microsoft PowerPoint - dialcode book cover 2003 8x14 - Multi-frequency signaling - Document - PDFSEARCH.IO

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Date: 2008-01-31 12:02:00 Federal Communications Commission Ultra high frequency Dual-tone multi-frequency signaling Emergency medical services Communication Electronic engineering Technology Censorship in the United States		Microsoft PowerPoint - dialcode book cover 2003 8x14 Add to Reading List Source URL: www.ncdhhs.gov Download Document from Source Website File Size: 75,33 KB Share Document on Facebook