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J2A0030-29-54
ยก
1999 5
MSM7715 l
1998 1
MSM7715
LSI
n
MSM7715LSI
ITU-T V.21300bps2DTMFPB
CPT1650Hz
NCU
n
l 3V2.53.6V
l DTMFDTMFV.21
l DTMF
l
l DTMFDTMF4
l
l
l
