ARMS Monitor 911 feature enables the agency to connect its
primary PSAP server (CAD output connection) to the ARMS server to
receive NENA standard ANI-ALI call details. NENA stands for National Emergency Number Association. You can read more about NENA at its web address at http://www.nena.org/  The NENA standard is enforced upon telephone carriers by the government, bringing about some conformity with regard to exchanging ANI-ALI data across platforms (such as from the telephony system server to the CAD server). 

 The 911 Call
window prompts the dispatcher with the parsed ANI-ALI caller data, enables the
dispatcher to start a new CAD entry, or appends an existing CAD entry (i.e.,
existing Open Call), or cancel.

How does ARMS obtain the ANI-ALI caller data?

ARMS Monitor 911 can read the raw
data flowing into the connection to the ARMS server and then allow the agency
to create and implement the desired parsing of that raw data. Additionally, this
gives the agency the ability to somewhat change with the times, as new
telephony equipment is brought into production (i.e., the agency is not backed
into a corner with non-modifiable ANI-ALI settings).

Through a connection from the
ARMS server to the telephony system server (typically, a COM port / serial
cable connection), the telephony system and the ARMS server continually “shake
hands” to stay in touch for active monitoring of sudden bursts of ANI-ALI
caller data that “spills” over into CAD. This data is sent to CAD by the
telephony system, in NENA standard form, within a few seconds of the dispatcher
answering the call. However, the caller data is not sent by the telephone system until the call has been answered.

In the image above, you can see portions of the ARMS Monitor
911 Configuration feature, which allows the agency administrator to view the
raw “Read Data” and apply parsing commands to retrieve the correct data
appropriate fields in ARMS.

After the agency administrator has completed and saved the Parse Parameters as
desired (i.e., the “Trimmed Data”), the settings are saved and put to work so
the dispatcher is receiving new 911 Call prompts using effectively parsed
ANI-ALI caller data.

ARMS CAD saves a copy of the ANI-ALI caller data into the CAD >> Police
Information field. As a result, the dispatcher or administrator can view the
original content received from the telephony system.