Lucent LT Win Modem

Lucent LT Win Modem

Lucent LT Win Modems are built on a Lucent (AT&T) chip set and include IS-101 command set.

Available Voice Codecs 
Method Bit Depth Sampling Frequencies Comment
PCM 16-bit linear 16 7200, 8000, 11025 The best sound quality
PCM 8-bit unsigned 8 7200, 8000, 11025 Very good sound quality. Though this codec is not in the list of supported algorithms, Lucent modems seems to use this codec instead of linear PCM.
PCM 8-bit linear 8 7200, 8000, 11025 Very good sound quality. If the program produces distorted sound with unsigned PCM, use this codec.
IMA ADPCM (Intel/DVI) 4 8000 Good sound quality
A-law PCM 8 8 8000 Very good sound quality
u-law PCM 8 8 8000 Very good sound quality

 

Information may be found in the Lucent LT Win Modem FAQ at 56K.com

Modem Notes Modem Notes