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The free Microsoft TTS engines available on the Download page work very well, but they are quite robotic sounding. If you want a high-quality voice that sounds more natural, Impulse Technology recommends the following voices available from NextUp.com.

Important! These voices are available in both 8khz and 16khz versions. The 16khz voices sound the best (when played through your sound card), and are recommended for use with IDentify! and Phone Plus. They are also recommended for use with CallStation to announce incoming calls. However, the 16khz voices CANNOT be used for speaking through the modem. If you want a better voice for use with CallStation's TTS greetings, TTS hang-up messages, or remote access, then you MUST get the 8khz voices. If you don't use these features very much, then you can just get the 16khz voices to use for announcing incoming calls, and configure the modem to use one of the Microsoft voices.


Kate and Paul are US English voices supporting SAPI 5 Speech applications including IDentify!, Phone Plus, and CallStation. Each voice requires around 300mb of disk space. Both are available on CD or via download for only $35 (plus shipping on the CD).

Buy NeoSpeech Voices Purchase NeoSpeech Kate & Paul Voices

Listen to NeoSpeech Samples:

Kate - 16khz US English Female MP3 File WMA File
Paul - 16khz US English Male MP3 File WMA File


The AT&T Natural Voices have also been tested and work very well, but they take over twice as much disk space as the NeoSpeech voices. Mike and Crystal are available from NextUp.com on CD or via download for only $35 (plus shipping on the CD).

Buy AT&T Natural Voices Purchase AT&T Mike & Crystal Voices

Listen to an AT&T Natural Voices Sample:

Crystal - 16khz US English Female MP3 File WMA File


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