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 Date: 2009-08-31 15:23:28Dual-tone multi-frequency signaling Caller ID Telecommunications Telephony Electronic engineering Interactive voice response |
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| First Page | Document Content | |
|---|---|---|
Date: 2009-08-31 15:23:28Dual-tone multi-frequency signaling Caller ID Telecommunications Telephony Electronic engineering Interactive voice response |
Add to Reading List |
VoiceObjects 9 Prime Telecom Primer VoiceObjects 9