WHAT IS CALLER ID?

Caller ID is the name given to the telephone company-provided feature that delivers the telephone number and sometimes the name of the person calling your phone. There are two types of Caller ID; the first delivers the calling party’s telephone number only and the second (sometimes referred to as “Deluxe” Caller ID) delivers both the calling party’s telephone number and name as listed in the telephone directory.

The iDCS 500 system can handle both types of Caller ID; in fact, in the case of number only delivery, the system can be programmed to insert a name for a specific telephone number (up to a maximum of 1500 numbers). However, even though you are paying to receive Caller ID information, there are some circumstances that mean you will not receive this information. The six most common reasons are listed below along with the display information that the iDCS 500 will provide.

PRIVATE

The caller does not wish his/her name or number to be

 

revealed to you. This type of call can be stopped at the

 

telephone company by dialing an access code on

 

your outside lines. This will redirect these PRIVATE

 

calls to an announcement that states that you do not

 

wish to receive calls that have had Caller ID blocked.

 

The code to block these calls can usually be found in

 

the front section of the telephone directory.

OUT OF AREA

The caller is calling from an area that cannot provide

 

Caller ID information (for example, international calls)

 

or he/she is calling from a type of circuit that cannot

 

provide Caller ID information, for example, some out-

 

bound WATS lines.

PAYPHONE

The caller is calling from a coin-operated telephone.

 

The telephone company will send this information as

 

there are no directory listings for pay phones. The

 

number will be delivered as usual.

INVALID CID INFO

This is a message that will be displayed when CID in-

 

formation is sent on the line but was somehow cor-

 

rupted.

NO CID RECEIVED

This is a message that will be displayed when there

 

was no CID information sent on the line.

NO CID DSP

Caller ID Digital Signal Processors (CIDDSP’s) are re-

 

sources in the DCS 400si required for receiving CID

 

data. If there are no CIDDSP’s available at the time a

 

call comes in, this is the message you will see on your

 

display.

NOTE: The Caller ID features require optional software and/or hardware. Please see your service and installation company for details.

WHAT IS ANI?

ANI (Automatic Number Identification) is a feature offered by some telephone service providers that provides the calling party’s telephone number. This service is only available on E&M Tie Lines on a T1, digital trunk. ANI is similar to Caller Identification (CID) but the format and information of the calling person is different. CID uses FSK signalling and ANI uses DTMF sig- nalling. Usually, with ANI, a calling party’s identity is the Listed Directory Number (LDN) unless a separate bill-to-number has been specified, (in which case the bill-to-number will be sent). Along with the ANI digits you also receive DNIS digits with a separator digit. The DNIS digits are used to tell the DCS 400si where to route the call. Note that ANI does not provide calling party NAME, only the number. The DCS 400si can provide calling number to name translation table.

WHAT IS CLI?

On ISDN circuits, calling party information is called CLI and is supported on both BRI and PRI type circuits on the iDCS 500. On BRI circuits the iDCS 500 only supports number delivery and, like ANI, a name can be attached to the telephone number of frequent callers via the Caller ID translation table. On 5ESS and NI2 PRI circuits both name and number support is provided on the iDCS 500 system. On a DMS100 circuit only number service is provided.

SELECTING YOUR CALLER ID DISPLAY

You can decide if you want to see the CID number in the display. Regardless of which one is selected, you can press the NDD key to view the other pieces of CID information. To select the type of Caller ID information you wish to view first:

•With the handset on-hook, press TRSF and then dial 119.

•Dial 0 for CID options or 1 for ANI options, or 2 for CLI options.

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