Allworx 6x Guía de usuario descargar pdf (Pagina 154)

System Administrator’s Guide – Release 7.5

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Toll Free 1-866-ALLWORX • 585-421-3850 • www.allworx.com

Revised: April 9, 2013

Page 144

To enter the Boot Server IP and Plug ’n’ Play Secret Key into the phone, press the

Config softkey and choose the Network Settings menu. To enter the information into

an Allworx PX 6/2 Expander, enter Config Mode. See the Allworx PX 6/2 Expander

Installation Guide for more information.

17.1.1 Phone or Port Expander behind a 3rd-Party Firewall

Remote phones and port expanders usually work well, even if they are behind a

firewall. There are several exceptions, each of which requires additional configuration

steps. This document describes the steps below.

Avoid most problems with firewalls by routing remote audio traffic through the server.

By default, all audio traffic from remote phones and port expanders runs through the

Allworx server. Although this avoids problems, it uses up bandwidth of the network

connection to the server. When calls to and from remote devices go back out over SIP

trunks or over the internet to other remote devices, the bandwidth usage is 180 Kbytes

per call, double that of a regular incoming call.

This traffic can degrade the audio quality of calls that use the Internet. However, there

is a server setting that can reduces the effect by enabling audio between devices to go

directly from one to the other, rather than through the server. The setting is Force

Remote Phone audio through server which can be found on the Servers > VoIP page.

Disabling it will reduce server bandwidth usage. However, if doing this and the phone

or port expander is behind a firewall, some configuration of the firewall may be

required.

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Allworx 6x Guía de usuario Pagina 154