Berkeley CSUA MOTD:Entry 43494
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2025/07/14 [General] UID:1000 Activity:popular
7/14    

2006/6/25-28 [Consumer/CellPhone] UID:43494 Activity:nil
6/25    My name just popped up on someone's caller id.  I don't know
        how that infomation was sent across, I thought the number would
        be the only thing sent.  It's a cell phone and shouldn't be listed,
        any idea how that happened?  --jwm
        \_ they have been sending names via callerid pretty much from the
           start. this includes cell phones. -shac
           \_ Is there a way to prevent it?  To just send the number?
              \_ From http://en.wikipedia.org/wiki/Caller_ID apparently
                 the phone co. does a db-lookup based on your phone number,
                 so it would have to be a phone co. feature to send only the
                 phone number to a caller ID device.
                 \_ This doesn't sound right to me.  The cell providers
                    don't share the databases so it's the cell company
                    you should speak to about your outgoing cid setting.
        \_ Were you calling the person's cell phone?  If so, is your name
           and cell phone number in their cell phone address book?
           \_ No, I called a land line.
        \_ A lot of phones have this as a configurable feature. Look at the
           options menu for something to do with sending your information.
           This may be an all-or-nothing, i.e., you may be able to send your
           name and number or no ID at all.
        \_ cingular/att recently sent me letter asking if I wanted to opt-out
           of showing my name on caller-ID
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en.wikipedia.org/wiki/Caller_ID
The term Caller ID was coined by the BellSouth Product team headed by Ellis D Hill that conducted the first market trial of this service and other "TouchStar" services in Orlando, FL beginning July 7, 1984. This market trial lasted 7 months, after which the results were analyzed and shared with the developer/vendor, Bell Labs/AT&T Network Systems (later renamed Lucent Technologies subsequently purchased in 2006 by Alcatel). Another market trial was conducted in Hudson County, NJ in 1987 by Bell Atlantic (later to become Verizon) followed by limited deployment. BellSouth began the first commercial application of Caller ID in December 1988 in Memphis, TN and was the first RBOC to have it fully deployed. US This is not to say that CID and ANI are the same thing. Caller ID is made up of two separate entities: the calling number and the billing (or subscriber) name. When a phone switch sends out a number, the remote telephone company is responsible for looking up the name of the subscriber in a common database. Additionally, nothing ensures that the number sent by a switch is the actual number where the call originated. It is very easy for a telephone switch to send any digit string it requests to the system. For example, if the originating PBX (say, from an office with an ISDN PRI line) sends out 2024561414 as the ANI, then the remote caller ID box will display the White House on the terminal device. This means that equipment with Caller ID will simply display the word 'PRIVATE' or 'WITHHELD'. Alternatively, Caller ID can be blocked permanently, and can only be released on a call-by-call basis by dialing a special code (*82 in the US). This is the case in some countries with people who choose not to be listed in the local telephone directory. anonymous caller rejection, meaning that calls made from a line in which the subscriber's number is blocked, will not be accepted. Blocking of anonymous callers is also becoming a popular feature for caller ID subscribers on a case by case basis as well. telephone companies also route anonymous calls to a service which requires the caller to announce him or her self, and then requires the called party to accept or reject the call. Blocking the number is referred to as Calling Line Identification Restriction (CLIR). Emergency services will most likely be able to show the restricted number using a service called Calling Line Identification Restriction Override (CLIRO), or by using general ANI services. Caller ID between different countries is often not transmitted, meaning that the equipment with Caller ID will simply display either 'UNAVAILABLE' or 'INTERNATIONAL'. This is usually the case with mobile phones, particularly when a subscriber is roaming overseas. However, the overseas number may be compressed into a 'domestic' format, meaning that the number may not be recognisable to the called party. For example, a US number 1 646 555 1212 may be displayed in the UK as 0646 555 1212, instead of 001 646 555 1212. Telemarketing organisations often block the display of their calling numbers. Some states and countries require telemarketers to display a contact number that can accept complaints, as the individual caller numbers may not be able to be called. Many Internet service providers (ISPs) providing dial-up access require the customer to use CLI to prevent abuse of the account by unauthorised callers. edit Type II Caller ID In 1995, Bellcore released another type of modulation similar to Bell 202 in which it became possible to transmit Caller ID information and even provide call-disposition options while the user was already on the telephone. This service became known in some markets as Call Waiting ID or when it was combined with call-disposition options; This tells the PBX where to route an incoming call, when there are more internal lines with external phone numbers than there are actual incoming lines in a large company or other organisation. List of telephony terminology * As a sidenote: Not all types of caller identification use 202-type modulation, nor do all systems send the information between the first and second ring, eg, British Telecom sends the signal before the first ring, after a polarity reversal in the line. As a result, not all "CallerID" devices are compatible from country to country or in the same country, even though the basic phone system is the same.