User`s guide

System Administrator’s Guide – Release 7.2.3.x

300 Main Street • East Rochester, NY 14445 • Toll Free 1-866-ALLWORX • 585-421-3850 • www.allworx.com

trademarks of their respective owners.

Revised: September 1, 2010

Page 88

Port Expanders and click on the port expander Description. Allocate 10 ports for each device in the

standard range (e.g. phone1: 16384 to 16393, phone2: 16394 to 16403).

Also on the device’s Configuration pages, choose different SIP ports for the devices, starting at 5060 (e.g.

phone1: 5060, phone2: 5061).

Forward the required IP ports through the firewall at the remote site, per the table below.

Port Type Global Local Protocol IP Address

BLF 2088 2088 UDP 192.168.2.7

SIP 5060 5060 UDP 192.168.2.7

SIP 5061 5061 UDP 169.168.2.8

RTP 16384 - 16393 16384 - 16393 UDP 192.168.2.7

RTP 16394 - 16403 16394 - 16403 UDP 192.168.2.8

Note that the BLF port need only be mapped for one of the remote devices.

14.3.1.3 Phones at Different Remote Sites, Each with a Firewall

This case is very similar to Case 14.3.1.2, Multiple Remote Devices behind the Same Firewall, above. The

difference is that mappings must be done on each site’s firewall. Be sure to map the correct RTP port range

for the device that is on the firewall being configured. Also, the BLF port (2088) must be mapped for one

device on each firewall.

14.3.1.4 Remote Phones Cannot Receive Pages

While regular calling and intercom calling works fine, paging remote phones does not. Sending pages from

the remote phone works but neither zoned nor overhead pages will typically be heard at the remote phone.

In order to enable paging to a remote phone, a VPN must be set up between the Allworx

server and the

remote phone. The Allworx

server settings changes are described below. Steps for configuring the

site’s firewall for the VPN vary widely so they are not covered, here.

On the Servers / VoIP Server page of the Allworx

server, there are three parameters used to configure where

the server transmits zoned pages: