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'FSK CALLER ID Receiver, Need help!'
1997\12\04@130440 by zhuxh

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Hi, friends in PIC circle, I realy need your help!

I am doing an experiment using a P16C56 to receive FSK Caller ID
signals. Now I think I have done most of the work, but the test
shows that the reception is not good enough, i.e. too many error
results!

In my programing, I ignored the CHANNEL SEISURE signal sand after
detected the MARK signal I let PIC receive the Hi's and Lo's on a
pin connected to a FSK decoder with a quite precision timing to
recover the serial data into bytes.

Well, as I have watched the signal with a scope, I know that it is
usually mixed with noises,so even an accurate timing for sampling
the signal can not assure a correct reception!

I think I have tried hard to improve this, unfortunatly, I am only
a newbie in PIC circle and have no experience in dealing with FSK
signal.

I hope you can give me help and advice as much as possible.

Thanks in advance!

1997\12\04@223631 by Brian C. Lane

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On Fri, 5 Dec 1997, Starfire Zhu wrote:

> Well, as I have watched the signal with a scope, I know that it is
> usually mixed with noises,so even an accurate timing for sampling
> the signal can not assure a correct reception!

 I haven't done anything like this with a PIC (most of my experience is
with HC05 and HC11 micros) so I can't offer code, but you need to
oversample the signal and set up a voting system for each bit so that it
can decide on its state based on the number of hits it gets.

 Brian

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1997\12\05@013433 by Andre Lategan

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I am just curious about Caller ID.

Telecom New Zealand recently introduced Caller ID.  They are selling the Caller
ID attachment AND charging a monthly rental for connection to Caller ID.  I
wonder if this isn't just a spoof and they are actually sending the Caller info
down everyones' telephone line anyway, whether or not you actually pay for it?

Has anyone any knowledge of this?

1997\12\05@024121 by Michael S. Hagberg

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in the state there is also a monthly charge. the data does NOT get sent if
you are not signed up. there is also another type that will send the caller
id for a call waiting call. circuit cellar has had a few articles on caller
id.

michael


{Original Message removed}

1997\12\05@143215 by Nigel Goodwin

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In message <.....TFSMBTHHKILLspamspam@spam@apac.dmr.com.au>, Andre Lategan <andre.lategan@APAC
.DMR.COM.AU> writes
>I am just curious about Caller ID.
>
>Telecom New Zealand recently introduced Caller ID.  They are selling the Caller
>ID attachment AND charging a monthly rental for connection to Caller ID.  I
>wonder if this isn't just a spoof and they are actually sending the Caller info
>down everyones' telephone line anyway, whether or not you actually pay for it?
>
>Has anyone any knowledge of this?

British Telecom do the same, you have to buy the Caller ID unit and then
pay a monthly subscription - if you don't pay the subscription your
Caller ID doesn't work. So they do have to turn Caller ID on in the UK,
I would expect it's the same in New Zealand.

--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : nigelgspamKILLspamlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
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1997\12\05@152149 by Martin R. Green

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On Fri, 5 Dec 1997 07:18:01 +0000, Nigel Goodwin
<.....nigelgKILLspamspam.....LPILSLEY.DEMON.CO.UK> wrote:

>In message <EraseMETFSMBTHHspam_OUTspamTakeThisOuTapac.dmr.com.au>, Andre Lategan <andre.lategan@APAC
>.DMR.COM.AU> writes
>>I am just curious about Caller ID.
>>
>>Telecom New Zealand recently introduced Caller ID.  They are selling the Caller
>>ID attachment AND charging a monthly rental for connection to Caller ID.  I
>>wonder if this isn't just a spoof and they are actually sending the Caller info
>>down everyones' telephone line anyway, whether or not you actually pay for it?
>>
>>Has anyone any knowledge of this?
>
>British Telecom do the same, you have to buy the Caller ID unit and then
>pay a monthly subscription - if you don't pay the subscription your
>Caller ID doesn't work. So they do have to turn Caller ID on in the UK,
>I would expect it's the same in New Zealand.

Same here in Canada and the US.  You can buy your unit anywhere you
like, they range from $30-100 CDN, and sometimes they are embedded
right into a phone, but they don't work unless you also subscribe to
the service from your local Telco.  Incidentally, many (most?) new
modems have caller ID capability built in.

CIAO - Martin.

Martin R. Green
elimarspamspam_OUTNOSPAMbigfoot.com

To reply, remove the NOSPAM from the return address.
Stamp out SPAM everywhere!!!

1997\12\06@070745 by David Duffy

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>From: Andre Lategan <@spam@andre.lateganKILLspamspamAPAC.DMR.COM.AU>
>Subject: Re: FSK CALLER ID Receiver, Need help!
>
>I am just curious about Caller ID.
>
>Telecom New Zealand recently introduced Caller ID.  They are selling the Caller
>ID attachment AND charging a monthly rental for connection to Caller ID.  I
>wonder if this isn't just a spoof and they are actually sending the Caller info
>down everyones' telephone line anyway, whether or not you actually pay for it?
>
>Has anyone any knowledge of this?

Wow, Telecom New Zealand are a bunch of bloody cheapskates aren't they ?
In Australia, Telstra was due to begin caller-ID 1st dec '97 but has delayed
it a bit due to some end user concerns about the privacy aspect of it. It's a
variant on the US system. AFAIK, it will be a free service like Easycall,etc.
Silent numbers will not transmit their ID by default although normal ones will.
Anyone will be able to disable/enable this on a call-by-call basis and it won't
be passed on by exchanges when the originating mode is unknown. The caller ID
decoders,etc are already on sale from around AU$39.95 upwards. It should be
fairly easy to decode the data (transmitted between 1st & 2nd rings) with a
good old fsk decoder chip & a Pic. Hope this sheds some light on the situation.
Regards...
_______________________________________________________________
Dave Duffy      Audio Visual Devices      KILLspamAVDKILLspamspammailbox.uq.edu.au
Unit 8, 9-11 Trade Street, Cleveland, Queensland 4163 Australia
Phone: +61 7 38210362                 Facsimile: +61 7 38210281
_______________________________________________________________

1997\12\07@162610 by Andre Lategan

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>From: Andre Lategan <RemoveMEandre.lateganTakeThisOuTspamAPAC.DMR.COM.AU>
>Subject: Re: FSK CALLER ID Receiver, Need help!
>
>I am just curious about Caller ID.
>
>Telecom New Zealand recently introduced Caller ID.  They are selling the
Caller
>ID attachment AND charging a monthly rental for connection to Caller ID.  I
>wonder if this isn't just a spoof and they are actually sending the Caller
info
>down everyones' telephone line anyway, whether or not you actually pay for
it?
>
>Has anyone any knowledge of this?

>Wow, Telecom New Zealand are a bunch of bloody cheapskates aren't they ?
Yes - but we have free local phone calls and you don't.......  :-)

{Quote hidden}

We also had a bit of a flurry about privacy here and this delayed Caller ID.
Then they decided it was OK and went ahead.  New Zealand is the first country
in the world (As far as I know) to have a Privacy law, so if its OK for us, it
likely to be OK for you too.  Our Privacy Act is very strict and has had some
ridiculous interpretations - like when one school refusedf to give the parents
their children's report cards because that would invade the privacy of the
children!  That took a bit to sort out.

The Privacy Act is actually a lot of hogwash.  I work in the computer
consulting industry and have a fair amount of knowledge about linking of
government and business computer systems.  Your life's affairs are easily
available to many separate organisations.

Andre___________

1997\12\21@074102 by paulb

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David Duffy wrote:

> Wow, Telecom New Zealand are a bunch of bloody cheapskates aren't
> they?  In Australia, Telstra was due to begin caller-ID 1st dec '97
> but has delayed it a bit due to some end user concerns about the
> privacy aspect of it.

 More likely the billing aspect!

> It's a variant on the US system. AFAIK, it will be a free service like
> Easycall,etc.

 Then you have not read ANY of the literature which came to your
mailbox.  It costs by the month.  Easycall is free?  You jest.  One and
one only "easycall" feature is free to domestic users; "call waiting".
Call diversion is "free" to pensioners.

 As the man from Telstra explained, these are "free" for a perfectly
obvious reason; they generate Telstra revenue.  A call that finds you
busy is not charged for so it does not generate revenue.  If however you
are acquainted of it and answer it, it IS charged for.  Voil‡!  Call
waiting is free!  A call when you are not at home is not charged.  If
however you have arranged to divert it, not only is it charged to the
originator, but you are charged a call fee for the diversion as well.

 All other facilities, such as enquiry calls (hold the person you are
talking to and call another to query a detail) and conference calls, do
not make extra revenue for the provider since you would make the call
anyway.  In fact, they allow you to get the task done in fewer calls as
you do not need to call back after the enquiry/ conference.  Ergo, you
must pay extra rent for them (in case you don't actually use them
much!).

 And of course, since the exchange equipment is provided already for
these facilities on all lines already (AXE series, though caller-ID and
public-phone comms are only built-in on the latest/ current line
equipment), the cost to the provider to provide any of these services
is exactly zero.

> Silent numbers will not transmit their ID by default although normal
> ones will.

 Except to operators of course!

> Anyone will be able to disable/enable this on a call-by-call basis and
> it won't be passed on by exchanges when the originating mode is
> unknown. The caller ID decoders,etc are already on sale from around
> AU$39.95 upwards. It should be fairly easy to decode the data
> transmitted between 1st & 2nd rings) with a good old fsk decoder chip
> & a Pic.

 A nice exercise, but since virtually all commercial systems cost less
than a years subscription to the service, this will definitely be just
for the fun of it!  If it wasn't for the cost, I would love to have an
adapter for the PC.  This could be used with a phone number database, if
you could obtain one, that is.  I went and bought a CD retail, only to
find that I hadn't bought a usable product, you had to pledge your
plastic to "register" it and get a key!

> Hope this sheds some light on the situation.

 So do I.

 I must say that one of the most necessary functions on a caller-ID
unit will be the control to prevent the phone ringing in the first place
unless an ID not in a "hit-list" is detected.  Note carefully how I
phrased that!

 Cheers,
       Paul B.

1997\12\22@022256 by Nigel Goodwin

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In message <spamBeGone349B70D0.30B4spamBeGonespammidcoast.com.au>, "Paul B. Webster VK2BZC"
<TakeThisOuTpaulbEraseMEspamspam_OUTMIDCOAST.COM.AU> writes
>  I must say that one of the most necessary functions on a caller-ID
>unit will be the control to prevent the phone ringing in the first place
>unless an ID not in a "hit-list" is detected.  Note carefully how I
>phrased that!

I was told recently by a guy who has subscribed to cable purely to get
their telephone service (he's since cancelled the cable TV, but kept the
phone) that this particular company have a scheme whereby the phone
won't accept calls from numbers with caller ID turned off. I tried
dialing his number with caller ID disabled and you get a recorded
announcement that 'this number will not accept numbers with caller ID
disabled'. Rather nice I thought, should get rid of all those double-
glazing salesmen :-).

If BT did a similar scheme I'd be registered in a flash :-).

--

Nigel.

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       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
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1997\12\22@111020 by Marc Heuler

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Hi Nigel (Nigel Goodwin), in <SjXzICA9wXn0Ewg$@lpilsley.demon.co.uk> on Dec 21 you wrote:

> I was told recently by a guy who has subscribed to cable purely to get
> their telephone service (he's since cancelled the cable TV, but kept the
> phone) that this particular company have a scheme whereby the phone
> won't accept calls from numbers with caller ID turned off. I tried
> dialing his number with caller ID disabled and you get a recorded
> announcement that 'this number will not accept numbers with caller ID
> disabled'.

How about international calls? They don't carry an ID either.

1997\12\22@132048 by czguris

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On Mon, 22 Dec 1997 16:21:37 CET, Marc Heuler <marcEraseMEspam.....AARGH.MAYN.DE>
wrote:

>> I was told recently by a guy who has subscribed to cable purely to get
>> their telephone service (he's since cancelled the cable TV, but kept the
>> phone) that this particular company have a scheme whereby the phone
>> won't accept calls from numbers with caller ID turned off. I tried
>> dialing his number with caller ID disabled and you get a recorded
>> announcement that 'this number will not accept numbers with caller ID
>> disabled'.

I've got caller ID from Bell Atlantic (the local co.) and they have
the same option. By default, incoming calls with with CLID disabled
are told my line doesn't accept it (I'm told there is also an option
for the caller to enable it). By entering a *-something code from my
phone, I can disable this option. I'm sure it's an option at the phone
_switch_ irrespective of whether the carrier is phone co or cable co.


Christopher Zguris, EraseMEczgurisspaminterport.net
http://www.users.interport.net/~czguris

1997\12\22@162921 by Nigel Goodwin

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In message <RemoveME9712221521.AA01de9EraseMEspamEraseMEaargh.mayn.de>, Marc Heuler
<RemoveMEmarcspam_OUTspamKILLspamAARGH.MAYN.DE> writes
>Hi Nigel (Nigel Goodwin), in <SjXzICA9wXn0Ewg$@lpilsley.demon.co.uk> on Dec 21
>you wrote:
>
>> I was told recently by a guy who has subscribed to cable purely to get
>> their telephone service (he's since cancelled the cable TV, but kept the
>> phone) that this particular company have a scheme whereby the phone
>> won't accept calls from numbers with caller ID turned off. I tried
>> dialing his number with caller ID disabled and you get a recorded
>> announcement that 'this number will not accept numbers with caller ID
>> disabled'.
>
>How about international calls? They don't carry an ID either.

Good question?. I've no idea, but do International calls have an ID
identifying themselves as International calls. I mention this because
BSkyB (the UK satellite TV service) will only supply access cards to UK
addresses (a requirement forced on them by the American copyright
holders), and if you ring them from abroad they know you are outside the
UK - and therefore 'kill' your card. Quite a few cards are used in
Spain, quite a lot of British people now live there, and get friends to
post their cards out.

Anyway, I never get international calls, so it wouldn't bother me :-).
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : RemoveMEnigelgTakeThisOuTspamspamlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
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       \--------------------------------------------------------------/

1997\12\30@140807 by Tom Dee

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On Mon, 22 Dec 1997 16:21:37 CET, you wrote:

>How about international calls? They don't carry an ID either.

There is a difference between blocked and unknown.  On my phone
(Seattle) the unknown's (they call it 'anonymous') are passed through.

Tom...

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