1. How to connect
    PSTN to Ozeki XE |
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2. Recommeneded
    ATA devices |
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3. Download Ozeki XE
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As most up-to-date PBXs, Ozeki Phone System XE uses digital switching for translating the analog signals to digital. For this purpose, a PSTN device, called ATA, can be used. With such an ATA device, you can easily connect an analogue line to the PBX. This way, you can make and receive calls to both directions. This article explains what kind of configurations are needed in Ozeki Phone System XE and how you can setup your ATA device in order to connect a PSTN phone line to your PBX.
Step 1: Installing a PSTN device |
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Introduction to Analog Phone lines and PSTN devices
As the VoIP-based Ozeki Phone System XE only accepts digital signals, you need to convert analog signals to digital. ATA (Analog Terminal Adapters) devices are commonly used for this purpose. These are also called PSTN (Public Switched Telephone Network) devices.
ATA has 2 kind of jacks:
The number of RJ-11 jacks connected to the telephone network determines how many calls can be made simultaneously, so maximum 1 call can be made at a time on 1 telephone line. Every telephone line gets a separate telephone number from the provider. Since the other jack of the ATA device is an ethernet jack, the ATA will have an IP address. It communicates with Ozeki Phone System XE using an IP address, so you only have to install a PSTN device in Ozeki Phone System XE, and ATA will do the rest.
First of all, download and install Ozeki Phone System XE. After launching it, log in with your username and password (Figure 1).
Figure 1 - Login page
After signing in, the home screen appears. Now, navigate to the "Outside lines" panel then click on the Add button in the top right corner of this section (Figure 2).
Figure 2 - Add new Outside Line
After that, the "Outside lines" panel can be seen. For creating a PSTN connection, you need to install a PSTN device; look for the "PSTN device" line in the Standard Connections column, than click on the Install button (Figure 3). The configuration panel of the PSTN device will appear.
Figure 3 - Install new PSTN device
Now the PSTN device Installation panel can be seen, where you need to specify some important parameters for this connection (Figure 4, Figure 5):
Figure 4 - The configuration panel of the PSTN device
Figure 5 - The configuration panel of the PSTN device
Now, you need to set an outbound and inbound rule to your outside line. The recommended dial plan settings appear automatically on the yellow warning bar (Figure 6, see below).
If you would like to make and receive calls by using outside lines, you will need to set up routing rules for this purpose within the Dial plan panel.
For example:
You can read more about dial plans and call routing rules here.
The first warning message tells you to set an Outbound rule. With this rule,
you can call a phone on the analog network from an extension, installed on the
Ozeki Phone System XE.
If you would like to make calls to outer networks with the "81" prefix, click the "Setup 81 as the outbound perfix" textlink, or if you would like to
set your own dial plan rules, click on the "create outbound dial plan rule manually" textlink.
The second warning message refers to the Inbound rule settings, it is used for incoming calls. Here, you can chose which extension will receive the calls coming from the analog telephone network. You only need to select an extension from the drop-down menu. Calls incoming to this PSTN outside line will be forwarded to the selected extension. Therefore, you can receive these incoming calls by using that particular extension and/or telephone. Finally, click on the OK button (Figure 6).
Figure 6 - Adding dial plan to the PSTN device
Having made the previously suggested settings, the only thing left to do is to set your Analog Telephone Adapter (ATA). In this guide will use the following device:
Figure 7 - Linksys SPA-3102
You should connect it to the PSTN device and to the local computer network. For connecting the ATA with Ozeki Phone System XE, you need to connect them together with the proper cables.
After that, open the configuration page of the ATA, by entering it's IP address into your web browser (Figure 8). (To find out the IP address of your ATA, please study the user manual of your device.)
Figure 8 - Open the configuration panel of your ATA
After opening the web GUI of your device, you need to specify the main parameters of the ATA:
Figure 9 demonstrates the configuration process through the example of Linksys SPA-3102. After opening the configuration page, select the Admin Login menu item at the top right corner, then select the Voice tab at the upper menu bar.
Figure 9 - Configuration panel of Linksys SPA-3102
After that, select the PSTN Line menu item, where you need to enter the IP Address of your Ozeki Phone System XE into the Proxy data field, the authorization name of the ATA into Auth ID textbox and provide its password in the Password row. Then, click on the Submit All Changes button at the bottom of the screen (Figure 10).
Figure 10 - PSTN configuration panel of Linksys SPA-3102
Now, your ATA has been added to Ozeki Phone System XE successfully and it is ready to use.
For initiating a test call, use an existing extension to dial an external phone number. (In this example, the phone number should start with "81", so you need to dial a phone number such as "820036440123456789" to make an outbound call.) The call status can be tracked in Ozeki Phone System XE, where you can also see that, the call has been made over the newly created PSTN connection (Figure 11).
Figure 11 - Making a test call
Conclusion
As the guide above presented, an ATA device is essential if you want to connect analog phone lines to Ozeki Phone System XE. This article demonstrated by an example the configuration's steps, needed on both sides; after you have added a new PSTN device, you only need to specify the main parameters of the ATA in Ozeki Phone System XE and the configuration panel of the device as well. It can be completed in less than 10 minutes.
If you have any questions or need assistance, please contact us at info@ozekiphone.com
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