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- Path: news.sccsi.com!usenet
- From: Lorell Hathcock <lorell@infohwy.com>
- Newsgroups: comp.dcom.modems
- Subject: RE: multiple phone lines-one pc..How?
- Date: Sat, 24 Feb 1996 16:26:41 -0600
- Organization: Info-Highway International, Inc
- Message-ID: <312F90A1.2A32@infohwy.com>
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-
- In article <4frtpj$7g8$1@mhadg.production.compuserve.com> Kiyu Gabriel
- <103714.1035@CompuServe.COM> writes:
- >From: Kiyu Gabriel <103714.1035@CompuServe.COM>
- >Subject: multiple phone lines-one pc..How?
- >Date: 14 Feb 1996 06:00:19 GMT
-
- >I am working on setting up a voice mailbox system but I don't know
- >how to set up more lines so that the pc can handle the load. How
- >do the big systems handle bunches of lines and not crash on top of
- >all of that? I thought that maybe hooking up multiple modems, but
- >I was hoping that there would be an easier way.
-
- > So basically, how does a computer handle 50 telephone
- >lines?
-
- There are a lot of options here. But a couple of questions are in order
- first.
-
- 1> What is your OS?
- 2> What do you plan on doing with those 50 phone lines once you get them
- connected?
-
- Two solutions that I have seen are the USENET II 4-port serial cards and
- the
- (much better) IOPRO serial boards (if that's what they're called). The
- USENET
- II cards allow you to add four more serial ports per card so that if you
- add
- four of the cards, you are adding 16 possible serial connections. I use
- these
- in a BSD UNIX environment. The only two down sides to these I see is
- the
- extra CPU usage and the limitation of the number of cards you can fit on
- your
- motherboard which means that you can only get -mebbey- 20 serial ports
- to plug
- in external modems.
-
- If you are interested, contact support@sccsi.com. They make 'em. They
- sell
- for around $200 each.
-
- The Chase IOPRO seems to be a better solution, but I have much less
- experiance
- with it. Chase took a RISC (sp?) processor and planted it on an ISA
- card and
- took all of the other hardward and put it outside. You purchase units
- to go
- with the ISA card that connect via cable and these units hold 16 serial
- ports each with a maximum of 4 units per card. Which means that you can
- get
- 64 serial connections per IOPRO chase card you put in your PC with a
- maximun
- of 4 cards per PC with a total of 256 possible serial connections. The
- cost s
- cheaper than sccsi's USENET cards and there is less CPU overhead because
- of
- the RISC processors that are onboard.
-
- mike@mcia.com is a Chase IOPRO dealer.
-
- -Lorell Hathcock
- -lorell@infohwy.com
-