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- Path: netnews.hinet.net!news
- From: Stephen Liu <AR!AR!Stephen@qciar.attmail.com>
- Newsgroups: comp.dcom.modems
- Subject: Re: Line quality monitoring?
- Date: Mon, 01 Apr 1996 11:09:16 -0800
- Organization: Quanta Computer
- Message-ID: <316029DC.577A@qciar.attmail.com>
- References: <4it9ct$ij7@asgard.actrix.gen.nz>
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-
- Stephen Worthington wrote:
- >
- > Does anyone have any information about how well various 28.8 modems
- > report line quality information? We are looking for a modem to set up
- > as part of a system that dials up the local ISP's modems each night and
- > reports on the quality of the connections (among other things).
- >
- > --
- > Stephen Worthington Telephone: +64-4-569-6764 (home)
- > Digi-Tech Communications Ltd +64-4-389-8909 (work)
- > stephen@digitech.co.nz (work) Fax: +64-4-389-9901 (work)
- > stephen@inisant.actrix.gen.nz (home)
-
- I had measure the line quality information of Rockwell modem chip
- (AT%Q). In the V.32 bis chipset you can see the %Q value changed with
- increased S/N, but in V.34 chipset this value somehow is always fixed to
- 33, do not change at all even with modem disconnected due to bad
- line condition.
-
- Hope this can be helpful.
-
- Regards,
- Stephen Liu
-