Allworx

Setup Multiple Remote Allworx Phones at a Single Location

SETUP NEW COPY OF EXISTING HANDSET PREFERENCE GROUP

IN THE COPY CHANGE THE NAME TO WHAT EVERY YOU NEED.

CHANGE SIP PORT TO 5061 AND UP AS NEEDED.

ADD HANDSET TO GROUP

SAVE

REBOOT PHONE

The Allworx system will attempt to send multiple phone calls to a remote network that has one public IP address. When the Allworx system does this, it must differentiate each phone on the network through UDP port mapping, while using the remote sites one public IP address. This document will show how this is done.

Setup the Remote Phones Location:

You'll need each phone to have its own UDP SIP Port , its own RTP Media Port Range as well as its own dedicated IP address. Only one phone will need the 2088 (UDP) and 8081 (TCP) as these are broadcast and multicast across the network to all phones.

In the below example, we are setting up 4 phones.

Phone - SIP Port - RTP Range - IP

A - 5060 (UDP) - 16001 to 16010 (UDP) - Set to use a local Static address

B - 5061 (UDP) - 16011 to 16020 (UDP) - Set to use a local Static address

C - 5062 (UDP) - 16021 to 16030 (UDP) - Set to use a local Static address

D - 5063 (UDP) - 16031 to 16040 (UDP) - Set to use a local Static address

Now, all of these will need to be port mapped / forwarded through the firewall to the IP of the phone.

Example: This is programmed in the Router at remote site:

Phone A

Route incoming UDP packet 5060 to static IP of Phone A

Route incoming UDP packets in the range of 16001 – 16010 to static IP of Phone A

Route incoming UDP packet 2088 to static IP of Phone A

Route incoming TCP packet 8081 to static IP of Phone A

Phone B

Route incoming UDP packet 5061 to static IP of Phone B

Route incoming UDP packets in the range of 16011 – 16020 to static IP of Phone B

Phone C and D are the same setup as Phone B but with their respective numbers.

NOTE: You will need to make sure when setting up the phones statically that you add the gateway and the subnet to the phone. Also make sure that the IP will not be leased, within the router, to another device. We recommend shortening the lease range to 200 devices and assigning the phones an ip outside of this range.

Setup the Allworx Server location:

You will need to go into the configuration of each remote phone on the Allworx system to update its Handset Configurations.

Start with the first handset

Phone A

Navigate to "Phone System" --> "Handsets" and then choose View Configuration of the handset being modified

Scroll down to the Phone Options, and click the "Modify" link

In the RTP Media Port Range field, enter the new range of ports of 16001 – 16010 that we added for this phone to the firewall above.

In the SIP Port field, enter the new UDP port of 5060 that we added for this phone in the firewall above.

Repeat this process for each remote handset using the proper settings from above.

If there is a firewall on the subnet between the Allworx and the Internet:

Map these ports to the LAN IP of the Allworx:

2088 (UDP)

5060 (UDP) plus any additional ones created above

8081 (TCP)

15000-15511 (UDP)

All UDP RTP Media Port Range ports that were created above (16001 - 16040)


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