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Key terms: ring format call ring tones signal telephone messages ringtone create midi nokia audio ringer bell pattern mobile phone customers consumers pots melody cingular text message siemens generated indicate monophonic extension voltage lawsuit morse code sms text ericsson landline cellular telephony harmonium impedance more than incoming call polyphonic aac format party line ringing signal rather than ring signal ring cadence electromagnet alternating current smart messaging promotional messages Search external links cited by footnotes on Wikipedia page Ringtone: |
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