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ff1324
Everybody Goes Home
Premium
join:2002-08-24
On Four Day

reply to CipherDias

Re: Blocking Caller ID ?

Many phone companies have a provision for public safety personnel to have your Caller ID information blocked permanently for no charge.
--
The funny thing about firemen...night and day they're always firemen


DC DSL
There's a reason I'm Command.
Premium
join:2000-07-30
Washington, DC
kudos:2
Reviews:
·Covad Communicat..
·Verizon Online DSL

reply to CipherDias
If you call a toll-free number, 911, or most numbers at law enforcement agencies, your number is always provided to the recipient. It doesn't matter if you block your caller ID or not.

Also, the suggestion that often comes up in the Spam Buster forum here to "call [a toll-free number you don't recognize] from a pay phone" won't always work. Many businesses block calls to their toll-free numbers from pay stations; some are even programmed to not accept calls from numbers they have not called.



Noah Vail
Son made my Avatar
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join:2004-12-10
Lorton, VA
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reply to CipherDias
A prepaid calling card, like the ones you use to call long distance, leave the caller ID of the PPCC company on the caller ID of the person you are calling. It's usually a legit number like 301-322-9514.

They're cheap per minute so there isn't much of an investment.

NV



OvrQualified
Slightly Ahead Of Time
Premium
join:2002-01-27
Winter Park, FL

reply to DC DSL

said by DC DSL:

If you call a toll-free number, 911, or most numbers at law enforcement agencies, your number is always provided to the recipient. It doesn't matter if you block your caller ID or not.
Yup, and it's a little wider than that, even: businesses with digital service (ISDN BRI, PRI, T1, T3, etc. services) often receive ANI (Automated Number Identification) data for calls to those lines. This is not the same as CLID (Calling Line Identification)...as ANI cannot be blocked.
--
The enemy of my enemy is my WHAT?!


tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
kudos:5
Reviews:
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·Hollis Hosting

1 edit

said by OvrQualified:

Yup, and it's a little wider than that
Just to beat this topic to death. Any entity with a "digital trunk" connection to the PSTN receives both caller and destination information. Otherwise call could not be delivered. It is up the termination entity to decide how to handle it.

When you suppress Caller ID either on a per call basis or permanently a message gets sent to the terminating equipment requesting it to not generate Caller ID info as part of called party signalling. Caller ID information is sent to the called party using Bell 202 half duplex modem protocol. Caller ID info is transmitted during ringing and if you have Call Waiting as part of the call waiting alert.

/Tom


RockyBB
Premium
join:2005-01-31
Steamboat Springs, CO

reply to Noah Vail

said by Noah Vail:

A prepaid calling card, like the ones you use to call long distance, leave the caller ID of the PPCC company on the caller ID of the person you are calling.
This year, the FCC has ordered that PPCC companies pass the true caller ID of the caller, not their own. I don't know a start date for that order.


tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
kudos:5
Reviews:
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·Hollis Hosting

said by RockyBB:

This year, the FCC has ordered that PPCC companies pass the true caller ID of the caller, not their own. I don't know a start date for that order.
Interesting since they don't know who the "real" caller is I assume this means the FCC requires they present the line number of the calling party. If call is placed behind a PBX they have no way to determine the extension so I assume they just report the Company's main #.

/Tom


Steve
I know your IP address
Consultant
join:2001-03-10
Yorba Linda, CA
kudos:5

reply to CipherDias
Two Caller-ID tidbits:

1) Calling a toll-free number (800, 877, etc.) is not caller-ID (it's ANI), and you can't block that delivery.

2) If you get always-block on your phone for outgoing calls, but you use speed dial for family and friends, add the unblock-code (*68?) to the start of the dial string so they know you're calling on their caller-ID box.

Steve
--
Stephen J. Friedl • Unix Wizard • Microsoft Security MVP • Tustin, California USA • my web site



r u criminal

@comcast.net

reply to CipherDias
Why do You need to block your number? If you are calling someone with whom you socialize, why are you hiding your identity? Hum! makes one wonder what you have to hide.



M A R S
Premium
join:2001-06-15
Long Island
Reviews:
·Optimum Online

said by r u criminal :

Why do You need to block your number? If you are calling someone with whom you socialize, why are you hiding your identity? Hum! makes one wonder what you have to hide.
Why do you give a crap if he he needs to hide.
--
DEATH TO 'ZOG'


cjwarner

join:2002-01-02
Pelham, AL

reply to CipherDias
Phone features (and their star codes)
»www.cs.rutgers.edu/~watrous/phon···res.html


hottboiinnc
ME

join:2003-10-15
Cleveland, OH

reply to kc5fog
TracFone shows callerID in Ohio. Also they do ask you who you are when you activate the phone. And Boost is just Nextel still shows up the number unless you have it blocked. But untraceable. naaaaa. not much of anything is.


hottboiinnc
ME

join:2003-10-15
Cleveland, OH
Reviews:
·WOW Internet and..

reply to tschmidt
AT&T Ohio says that no matter what a business is using for their telephone lines from them they provide your caller id information to them. even if they're using a standard phone line. So yah businesses always get it in Ohio that have service with AT&T



hdtvtechno

join:2005-09-04
Chicago, IL

reply to acid343211

Cool... thanks...
--
Andrew's Myspace Profile


batterup
I Can Not Tell A Lie.
Premium
join:2003-02-06
Netcong, NJ
Reviews:
·Verizon Online DSL

reply to whocares0

said by whocares0:

said by CipherDias:

On a regular landline telephone is there any way to completely block the person at the other end from seeing the number you are calling from?
yes but don't forget, some pple, (like me) have our landlines set up,so that no number/no name show, no calls accepted,
I would like to do that but then I would miss important calls. Many business like hospitals have their service provided over a carrier system and the calling number is not generated to caller ID.


acid343211
Hallo lisa Aus Amerika
Premium
join:2001-08-31
Byron, GA

reply to hdtvtechno

said by hdtvtechno:

Cool... thanks...
no problem,
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