Seeking Telephone Answering software and hardware ?

Edwards Finance > Phones

Q. I am seeking to design and build a telephone answering systems. Hardware: Can you recommend any PC telephone answering cards? How does telephone cards integrated with sound card to play greetings and record incoming messages and recognize DTMF key in reply from caller? Software: Can you recommend how to write our own Microsoft Windows based telephone answering software with caller ID and DTMF key in reply from callers?

A. Dialogic hardware is pretty good (www.dialogic.com) and there are other manufacturers of similar equipment which a web search should help you find. You may be able to what you want with a 'voice modem'. Which is a modem that can send/decode DTMF tones and WAVE (.wav) sound files. The quality is reputed to be quite variable, particularly on cheaper models. Top end models are probably the PhoneBlaster and IBM MWave. Find out about TAPI, Microsoft's Telephony API, which should allow you to program many types of telephone hardware under Windows. However the TAPI drivers for some hardware, (e.g. Dialogic) are buggy and you may do better to use Dialogic's own API with their hardware. Visit the microsoft.public.win32.programmer.tapi newsgroup for more information, and check Bruce Pennypacker's TAPI FAQ for lots of info and book suggestions: http://members.tripod.com/~tapifaq

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