User guide

System Administrator’s Guide – Release 7.5
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Revised: April 9, 2013
Page 143
17 Remote Allworx Phones and Port Expanders
A remote device is a phone or port expander on a different Local Area Network (LAN)
than the Allworx server. For example, the Allworx server is at the company’s main
office but an employee has an office phone at home. The Allworx Server Administrator
can configure the system so that calls to and from that phone work just as though the
employee was at the company’s main office. Similarly, the Allworx Server
Administrator can configure analog phones and CO lines on a remote port expander to
seamlessly integrate into the server’s network and dial plan.
Refer to General Network Configuration Requirements on page 27 before setting up
Remote Allworx devices.
Caution: Correct routing of 911 emergency calls for remote Allworx phones and analog
handsets attached to remote Allworx Port Expanders cannot be guaranteed. Do
not configure remote handsets if using to place 911 calls.
Caution: If there is an interruption between the network connection between the Port
Expander and the Allworx server, regular use of the Port Expander’s FXO and
FXS ports will not be possible. The only option for placing calls through a Port
Expander that does not have a functional network connection to its Allworx server
is to plug an analog phone into the Power Fail port. The CO line connected to
FXO port 1 routes the calls placed using this phone. No other ports are functional.
17.1 Setting Up Remote Allworx Devices
Configuring a remote phone or port expander requires setting two configuration
parameters on the device.
1. Boot Server IP. This is the IP address of the Allworx server’s WAN port that
can be obtained from the server’s WAN TCP/IP Address parameter on the
Network > Configuration page. However, if the Allworx server network
mode is set to LAN Host, then this value will be the Public IP Address
parameter on the Network > Configuration page.
2. Plug ‘n’ Play Secret Key. This key is displayed on the Servers > VoIP page
on the server: 0.