v.s.n.kumar
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what is the value of low & high frequencies for a key in cellphone in other countries
Hi,
we know that in a cell every key has high & low frequency tones(DTMF). can anybody tell, whether these low & high frequencies for each key are same all over the world or not.please explain.
Hi,
we know that in a cell every key has high & low frequency tones(DTMF). can anybody tell, whether these low & high frequencies for each key are same all over the world or not.please explain.
