Filter
Top Products
Chapter 8 - Special Functions
8-4
Caller Number Delivery (Caller ID)
Caller Number Delivery (CND), commonly called Caller ID, is a new kind of
phone service that may be offered by your local phone company. Check your
phone company for availability. You must subscribe to it and usually pay an
additional monthly service charge this service.
With CND service, the phone company’s central office will send the coded caller
information to the called station. This information is sent once between the first
and second. The Omni 288S modem can decode this caller information and
present it to the connected computer/terminal during the second ring period as part
of the call progress ring message. The modem will also report the Caller ID
information if asked by the command AT*T.
There are two kinds of caller information message formats sent by the phone
company.
One is the single message format which includes date, time, and caller ID
The other is the multiple message format which also includes the caller name
as registered with the phone company.
The command ATS40.2=n is used to enable (n=1) or disable (n=0) the Caller ID
detection function. The default is disabled. Enable it only when you have this
service and want to enable its detection.
Note: The Caller ID message may cause some communication
software that is not expecting it to become confused. If you
plan to use the Caller ID feature, be sure you are using
software that supports it (such as ZFAX).
In single message format, the modem will send a ring message to the terminal as
follows:
RING
TIME: <MM-DD hh:mm>
CALLER NUMBER: <CALLER_ID> or CALLER
NAME:<CALLER_NM>
RING
MM is the two-digit month message, DD is the two-digit date message, hh is the
hour and mm is the minute of the time, and CALLER_ID is the phone number of
the caller or CALLER_NM his/her name.
The following is an example of a caller ID message as it might appear on your
screen:
RING
TIME: 04-28 12:30