{"wiki":"en","slug":"3cx","markdown":"\n\n# Configuration guide 3CX®\n\n## 1. Configuration guide\n\nThis configuration guide describes how to set up a Behnke Station as a SIP extension of a 3CX® virtual phone system. We are assuming that the basic configuration of the 3CX® system has already been done, and we will only describe the steps required to register the Behnke Station with 3CX®. We also assume that the Behnke station has already been integrated into the network and can be accessed via the IP address in a browser.\n\n### 1.1. Configuring the extension for the Behnke Station\n\nPlease note that the configuration of the extension is only shown very briefly and the configuration may vary for your 3CX®. If in doubt, please contact your 3CX® support.\n\n- First, please open the 3CX® Management Console in your browser and log in with your admin credentials.\n\n \n\n- In the menu on the left please click on **\"Users\"**.\n\n \n\n- Click on `+ Add`.\n\n \n\n- Specify the extension for the Behnke station in the **\"Extension\"** field and fill out the other fields if necessary. Then switch to the **\"Phone Provisioning\"** tab at the top.\n\n \n\n- Set the **\"ID\"** and the corresponding **\"Password\"** and write down these credentials. These credentials and the extension are required in the next step for registering the Behnke Station with your 3CX®. Then click **\"OK\"** at the top.\n\n \n\n### 1.2. Configuring the Behnke Station\n\n- Open a new tab in your browser, enter the IP address of the Behnke Station in the address bar and log in.\n\n \n\n- Click on **\"SIP Phone\"** in the menu. Scroll down to **\"SIP account 1\"** and select the option **\"yes\"** for **\"Register\"**.\n\n \n\n- Then fill in the fields with your 3CX® SIP credentials as follows and click **\"Save\"** on the left.\n\n | Field Behnke-Station | Value 3CX® |\n | ---------------------- | ---------------------- |\n | Phone number/user name | extension |\n | User ID | ID |\n | Password | password |\n | Server | IP address of the 3CX® |\n \n If the registration was successful, the **\"Registration state\"** changes to **{+registered+}**.\n\n \n\n- Then click **\"Buttons\"** in the menu on the left. For the desired call button enter the extension number or phone number that is to be called when the button is pressed. Then click **\"Save\"** on the left.\n\n \n\n## 2. Trouble shooting\n\nPlease click on a problem below, in order to get an exact description and solutions.\n\nSIP registration fails, despite correct SIP credentials. The 3CX® system no longer responds to SIP requests from the Behnke Station.
\n If a device with a specific IP address failed several times in registering via SIP (e.g. using incorrect SIP credentials), 3CX® will ban the corresponding IP address. The IP address must then be removed manually from the 3CX®'s blacklist. The IP blacklist can be found on the configuration interface under \"Security\".
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