Carl Denk wrote:
> I have a home alarm system with RS-485 network, currently E-mail via 
> dialup modem is available, would like to add capability of dial out with 
> voice messages:
> 
> 1: Would be a dozen or so possible brief, less than 20, or even a dozen 
> words each messages. Messages would be stored digital (text file) and 
> synthesized for output.

You might consider just pre-recording the messages for playback, with a 
device like the Winbond ISD1420 ChipCorder and family.  Pretty simple to 
control, and not too expensive either.

Recorded speech is usually more intelligible than synthesized speech, 
and if you're not changing the messages often it's no more work.
-- 
Timothy J. Weber
http://timothyweber.org
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