... my PCM, ADPCM. -Data rate: 64Kbps, 32Kbps, 16KbpsDTMF code: 0-9, *, #, A, B, C, DCaller: 2634 FSK, DTMFFSK modulation mode:Logic ... ± 1%Binary data transfer mode: asynchronous serial manner Operating system:32bit Windows 7,Windows 2000 and Windows 98, Server, does (on the Server), and ...