Citel 4000 Guía De Instalación

Prerequisites for Installation 

You must meet the following requirements before installing the EXTender 4000: 

•  An appropriate network-terminating device must be installed and functioning at both the corporate 

facility and the branch office. 

•  The data connection between the corporate facility and the EXTender 4000 must be operational 

and configured properly. 

•  The network termination equipment must support a 10Base-T Ethernet interface. 

Ensure that the correct TCP/UDP ports are opened to allow the EXTender 4000 to connect through your 
company firewall. The following TCP/UDP port requirements must be met: 

The EXTender 4000 uses port 12,288 for incoming UDP streams and any port between 1024 and 65535 
for outgoing TCP streams. 

The Gateway unit uses TCP/UDP port 2698. 

The system is designed to operate at 120 VAC. Do not apply power to the EXTender 4000 until you are 
instructed to do so in the installation procedure. 

•  Install the EXTender 4000 power supply and cabling away from high power/high RF noise devices 

such as computers, fans, fluorescent ballast, and power supplies. 

•  Use good wiring practices. Do not run wires over fluorescent lights, computers, air conditioners, 

etc. as this can introduce noise. 

•  The distance between the telephones and the EXTender 4000 should NOT exceed 500 feet. 

EXTender 4000 Universal Quick Installation Guide

 

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