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How to become a VoIP service provider

Read the following step-by-step tutorial to know, how to make your own VoIP service provider. In this section, you will learn, how to install the Ozeki XE with a public IP address, then how to connect it to a SIP trunk service. How to create outbound and inbound dial rules and lastly, how to configure your softphone.

Step 1.) Install Ozeki XE on a Windows server with public IP address

First Install Ozeki XE, then set up port forwarding in you router settings. You have to send the port numbers used by Session Initiation Protocol, Real-time Transport Protocol and optionally the port number of the Graphical User Interface. With these ports, you are able to reach the Ozeki XE through the internet. The SIP uses the port 5060, the RTP uses a number from a 5000-10000 domain, by default. The port number of the GUI is 7777.

Step 2.) Connect Ozeki XE to a SIP trunk service

First, you have to connect to a SIP trunk service. To do it, in the 'Outside lines' tab under the Standard Extensions column click on 'Install' next to 'VoIP provider'. (Figure 1)

Figure 1 - Install outside line

In the 'General' tab type in your connection name, username, domain name, port and optionally the authentication name, password and outbound proxy server, then click 'OK'. (Figure 2)

Figure 2 - Install VoIP provider

Step 3.)Setup SIP extensions with the DID numbers in Ozeki XE

In the 'Extensions' tab click 'Add'. (Figure 3)

Figure 3 - Add new extension

Then install a new SIP extension. (Figure 4)

Figure 4 - Install SIP extension

Set up its phone number and password. After it, click 'OK'. (Figure 5)

Figure 5 - Set up new extension

Step 4.) Create direct dial in (DID) numbers at your SIP trunk provider

To route the inbound calls, in the 'Dial plan' tab select 'Inbound' then click on 'Add'. (Figure 6)

Figure 6 - Add inbound dial plan

Select your Specific outside line, then make a new condition. You can redirect to your custom destionation, or it can be the extension specified by the dialed (or modified) number. (Figure 7)

Figure 7 - Make inbound dial plan rule

Step 5.) Setup inbound routing in Ozeki XE

If there is no match in the previous conditions, a default inbound routing can be set up. It has the lowest priority. (Figure 8)

Figure 8 - Make default dial plan rule

Step 6.) Setup outbound routing in Ozeki XE

To set up outbound routing, select 'Outbound' in the 'Dial plan' tab, then click 'Add'. (Figure 9)

Figure 9 - Add outbound dial plan

Here you can choose any specific extensions, or select all of them. In this example, all outgoing calls from all extensions will be sent to your SIP trunk provider. (Figure 10)

Figure 10 - Make outbound dial plan rule

Step 7.) Configure SIP client software for your customers

The last step is to configure your SIP client with your selected software. Give it an Account name, set the user ID and the password, tuned in the Ozeki Phone System XE. The domain name should be the public IP address of your PBX. (Figure 11)

Figure 11 - Configure SIP client

If you have any questions or need assistance, please contact us at  info@ozekiphone.com

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