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<font size="-1"><font face="Trebuchet MS">Hi, i have just purchased 5
3911 to use them in a UC520 environment.<br>
I have read that they do not support polyphonic ring-tones but how can
i change the default ring-tone to another that uses higher frequency?<br>
It is the same as the standard US alerting tone !<br>
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Best Regards<br>
Anthony<br>
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