I think you can turn that off, unless it's a frequency-clearing tone like the old 'Quindar' beep heard during old Apollo moon missions used for the same purpose.
Not much better or cheaper than making a regular cell phone call. Cingular jumped on the bandwagon after Nextel's walkie-talkie phone virtual monopoly.
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ASF
Causa latet vis est notissima - the cause is hidden, the results are well known.
Alpha Alpha (University of Oklahoma) Chapter, #814, 1984
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