Installation guide

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OFFICE EXTENDER VOICE LINK
REMOTE PABX INTERFACE LI-4302 (SYSTEM DRAWING NUMBER 4759)
Description
The Telecommuting Home Interface Module (HIM) is commonly used in conjunction with the Office Extender for
Telecommuting purposes.
Normally the Telecommuter is situated at a Small Office/Home Office (SOHO) where there is a single line telephone for
voice calls.
Further applications for the Office Extender and the HIM exist where a PABX or Key System is at the remote end.
By using a HIM in conjunction with the Remote PABX Interface at the remote end, an Extender Voice Link connection
similar to a ‘Voice Link C’ is created.
The Remote PABX Interface is situated at the Remote Office and is connected in between the HIM and a spare ring
in/loop out ‘Trunk’ position on the PABX or Key System. The HIM does the work of sending answer, hang up and hook
flash commands to the Office Extender as well as causing the Remote PABX Interface to send ringing voltage to the
PABX as calls arrive. The Remote PABX Interface also provides the PABX with a 48 Volt line feed. As a result, a line on
the Remote Office PABX remains connected to the Main Office PABX, over which calls can transferred to and then from
the Remote Office.
When the Remote Office has an Extender Voice Link established but is not on a call to the main office, the Extender
remote PABX ‘Trunk’ is placed ‘on-hook’. While ‘on-hook’, the HIM communicates with the Office Extender to hold the
PSTN connection between both offices. When a call is presented to the Remote Office by the main PABX or ACD, the
Office Extender signals the HIM and Remote PABX Interface to ring the PABX. When the call is picked up from an
extension, the HIM signals the Office Extender to loop the Main Office PABX extension. When the telephone extension
that seized the ‘trunk’ at the remote end is hung up, the HIM signals the Office Extender to hang up the PABX extension
at the Main Office and keep the PSTN connection to the Office Extender in Hold Mode, or drop the connection in Dial
Mode.
Operating Procedure
When first connecting the HIM, it will take about 30 seconds for the unit to ‘charge up’.
To Establish the Extender Voice Link
1. Dial the Office Extender and wait for answer.
2. Enter your Operator number and PIN.
3. Obtain dial tone and enter your ACD Log On code (if necessary).
4. Hang up.
To Disconnect the Extender Voice Link
1. Select the Extender Line Key, wait for dial tone and dial your ACD Log Off code (if necessary).
2. Press # * #. Listen for “This telecommuting session is now over, goodbye”.
3. Hang up.
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User Guide for Remote PABX Interface SY-4759 Document G/98116 Issue 1 Page 1