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- Path: d31.netgate.net!user
- From: dave@caffeine.com (Dave Wells)
- Newsgroups: comp.dcom.modems
- Subject: Re: Voive/Fax/Data Modems using DSP
- Date: Wed, 31 Jan 1996 05:14:59 -0800
- Organization: NetGate Communications
- Message-ID: <dave-3101960514590001@d31.netgate.net>
- References: <4edjao$8sp@news.ios.com>
- NNTP-Posting-Host: d31.netgate.net
- X-Newsreader: Value-Added NewsWatcher 2.0b27.1+
-
- In article <4edjao$8sp@news.ios.com>, jmac39@chelsea.ios.com wrote:
-
- >I understand that there are several Voice Modems that
- >have onboard dsp chips. It seems that many (most?) use
- >the Rockwell RCV144 DPi-Voice or RCV288 DPi-Voice chip sets.
- >
- >My company is interested in developing a Computer-Telephony
- >app that can handle up to 4 phone lines simultaneously using
- >such Voice modems. It is hoped that the dsp can, among other
- >things, create, select and service up to 4 "Virtual" I/O ports,
- >under software control.
- >
- >I have, thus far, only located one manufacturer (Zoom).
- >They said that they would not produce any more until
- >Spring '96 because of problems with the Rockwell chips.
- >
- >Any info, contacts or other help would be greatly appreciated.
- >
- >John
-
- A few companies use the IBM mwave dsp chip in their modems. I have one
- each of the Best Data Ace 5000 (14.4) and Mirro <can't remember the model>
- (28.8) cards. They seem to work pretty well, and I hear IBM is spending a
- lot of money on the chip. You might want to contact them (IBM) if you're
- interested in developing hardware around a chip and you haven't yet
- decided wich one. If they have the motivation to help, they certainly
- have the resources.
-
- Good luck,
-
- Dave
-