Instruction manual

FEATURES AND SERVICES
Station Message Detail Recording (SMDR)
Description
This feature provides detailed call information records on all incoming and outgoing trunk
calls and sends this information to an (optional) output device. Data on inside calls is not
collected.
The call records can be used to compute costs, allocate charges, and analyze calling
patterns. The output device can be any serial RS-232 compatible DTE device capable of
receiving the data (must supply DTR on pin 20) and either printing the call records or storing
and analyzing them. (80 character ASCII records are sent to the output device.)
The SMDR RS-232 port interface is provided by a DUART driver (68681). It is a one-way
port transmitting data to the output device.
No characters are read by the port interface, and
no flow control mechanisms are provided.
The standard data transmit rate is 1200 bps.
(Also operates at 300 bps.)
Call Records
The call records provide detailed information concerning both incoming and outgoing calls.
Call detail records are generated during call processing and are sent to the SMDR output
device in ASCII format. SMDR records are provided for:
● Voice Records: The system prints call records for incoming calls and for outgoing
calls that exceed a specified duration.
For special types of calls such as conference
or transferred calls, one call record is reported for each trunk seized, regardless of
the number of parties connected to the call. The call’s duration is from the time the
last digit was dialed until the last person hangs up.
No indication is provided that
trunks have been bridged together.
● Data Records: The system prints call records for incoming and outgoing (external)
data calls. Calls are considered data calls if they involve a data extension.
The following list describes the SMDR data collected for each call and the number of
characters in each field. All information is right justified in its field, unless otherwise
indicated. The record is provided in a standard 80-column format. The headings for each
record item are noted in bold type. These headings are printed across the top of each page.
Page advance is determined by counting lines based on a fixed page length. Each record is
followed by a carriage return and a line feed.
The system can provide for the storage of up to 100 SMDR records. If more than 100
records are received while the printer is disconnected, a message “Calls Lost Due To Call
Record Overflow” is provided when a printer is re-attached.
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