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Calling Number Delivery
Calling Number Delivery

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!!! Overview
[{$pagename}] ([CND]), commonly referred to as [Caller ID], is a [Telecommunications] service that provides the calling party's [Phone Number] to the [Customer Premises Equipment] ([CPE]).
On [Land Line] (a standard [Loop Start] line), then [{$pagename}] is provided by the [Service Provider]'s [Local Exchange]. Since the [network] does not connect the caller to the callee until the phone is answered, generally the [{$pagename}] signal cannot be altered by the caller. Most service providers however, allow the caller to block caller ID presentation through the [Vertical Service Code] *67.
[{$pagename}] [message] type word for [CND] is "04h" [Hexadecimal] or "00000100" [Binary].
!! [{$pagename}] [Data] Words
The 8-[bit] [data] words ([bytes]) using [ASCII] [Encoding] and represent the following information:
* The first two words represent the month
* The next two words represent the day of the [month]
* The next two words represent the [hour] in local military time
* The next two words represent the [minute] after the hour
* The calling party's [Phone Number] is represented by the remaining words in the data word field
If the calling party's directory number is not available to the terminating central office, the data word field contains an [ASCII] "O". If the calling party invokes the privacy capability, the data word field contains an [ASCII] "P".
!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [Caller-ID|http://www.tech-faq.com/caller-id.html|target='_blank'] - based on information obtained 2019-08-23
This page (revision-1) was last changed on 29-Nov-2024 16:16 by UnknownAuthorTop