Re: Strange Phone Line Issue

["Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

FSK must be messy up in your neck of the woods! "frequency shit keying" ???
:-)))



"Petem" <petem001@xxxxxxxxx> wrote in message
news:au4ph.90960$fg.1200712@xxxxxxxxxxxxxxxxxxxxxx
| CID is sounding like a modem
|
| on this web page it is describe very well
| http://www.ee.washington.edu/conselec/A95/projects/jjblome/info.htm
|
| Here's a quote:
|
| "The data is transmitted serially between the first and second rings of
the
| incoming call. The data is transmitted at 1200 bits per second in FSK
mode.
| 1200 Hz represents a logical 1 (mark) and 2200 Hz a logical 0 (space)"
|
|
| as you can see the data is sent in fsk mode,witch mean frequency shit
| keying,is the method used in modem to send data over sound..(its also used
| in ham radio for transmitting data over the air...)
|
| as you can see in the web page,CID is a standard and should not vary from
| one provider to another,but I've seen difference in sound level on the
line
| from the same provider..
|
|
|
|
|
| "ABLE_1" <royboynospam@xxxxxxxxxxxxx> a écrit dans le message de news:
| SPGdnTbwj_DU_DnYnZ2dnUVZ_veinZ2d@xxxxxxxxxxxxxx
| >> typical caller id sound..
| >
| > Is it???  First I would not have been listening if there was not a
problem
| > connecting remotely.  Second I have never heard nor listened for the CID
| > before so I can't say that it is "typical".  I know that the CID happens
| > between the first and second ring but always thought it was at a high
freq
| > data similar to DSL.  If it is CID then I need to test this elsewhere to
| > see if it is the same.
| >
| > Which brings up another question.  Does CID vary between carriers??  And
| > IF so and it was CID then it would explain why I may not have ever heard
| > it before.
| >
| > At this time it is all still very strange.
| >
| >
| >
| >
| >>> On the speaker of the butt set just before the 1st ring a small buzz
| >>> click was heard and then after the first ring a carrier tone is heard
| >>> for about 1 second and then a pause and then the next ring.  Nothing
| >>> else is heard except for normal rings after that.
| >>
| >>
| >
| >>
| >>
| >
| >
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