> For the complete documentation index, see [llms.txt](https://help.sipgate.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sipgate.de/cloud-telefonanlage/en/getting-started/konfigurationsanleitungen/wie-konfiguriere-ich-die-blf-funktion-fuer-grandstream.md). # How do I configure the BLF function for Grandstream? We tested the BLF function with the following Grandstream models: * GXP 2110 and GXP 2120 * GXP 2020 * GXP 2124 {% hint style="info" %} Please note that this function is only available if you have booked the **sipgate business L or XL** plan. {% endhint %} #### GXP 2110 and GXP 2120 {% hint style="warning" %} **Important**: The pickup function (picking up calls) via the BLF speed dial key is not possible with these models. {% endhint %} **Login** To access the configuration interface of the Grandstream phone, you first need the IP address assigned to the phone. On many Grandstream models, the IP address is displayed directly on the screen; otherwise, you can determine it by pressing the **Menu** key on the phone and then selecting the **Status** ➔ **Network status ➔** **IP** You will now see the assigned IP address (e.g. 192.168.0.5). **Create user for the BLF** Enter the IP address in the address bar of your browser. You will now see the configuration interface of your phone. If you received the GXP 2110/2120 unconfigured, the password is **admin**. Use the menu to switch to the **settings** ➔ **Programmable keys**. In the following window, you can now enter the data as shown below. ![](/files/7de35712923f3472c7c9a6b7b9078e4236bf5d23) Select from the list of multifunction keys in the field **Mode** please **Busy Lamp Field (BLF)** select. Right next to it, select your own sipgate account (here in the example Account 1). In the field **Description** enter e.g. the name of the user. In the field **Value** enter the user's extension. So enter e.g. "42" to see the status of the user with extension 42. Confirm your entries by clicking **Save and execute**. Often the settings are only fully applied after you then reboot the phone (click Restart at the top right next to the language selection). #### GXP 2020 **Display phone IP address** Please make sure DHCP is enabled in the router. On most routers, DHCP is enabled by default. Connect the Grandstream phone to your router using a network cable. The Grandstream phone is assigned an IP address by the router. In most cases, the IP address will then already be shown on the phone's display. If this is not the case: Press the key **Menu** on the phone. Then press **Config** ➔ **Network** ➔ **IP.** The current IP address is displayed. If 0.0.0.0 is displayed, please check point 1 and restart the router and phone. If the IP address is, for example, "192.168.001.100", enter it in your browser without leading zeros: "". You will now reach the Grandstream phone's web configuration menu. **Create user for the BLF** Enter the IP address in the address bar of your browser. You will now see the configuration interface of your phone. {% hint style="info" %} **Important:** If you received the GXP-2020 unconfigured, the password is **admin**. {% endhint %} Use the menu to switch to the **Basic Settings**. In the following window, you can now enter the data as shown below. ![BLF\_Config\_GXP2020\_new1.jpg](/files/45e3e0e02daeab7190014cb6dd13106d2809cc77) Now select from the list in the field **Key Mode** please **Busy Lamp Field (BLF)** select. Right next to it, select your own sipgate account (here in the example Account 1). Enter in the field **Name** e.g. the name of the user. In the field **UserID** enter the user's extension. So enter e.g. "42" to see the status of the user with extension 42. Confirm your entries by clicking **Update**. To be able to use the pickup function via the BLF key on the Grandstream phone as well, it is necessary in the main menu under **Account 1** to also make the following setting: ![pickupconfigGXP2020.JPG](/files/709d4b83d7b9d091249f1d8b11f3eb4ccdc3cc90) Confirm your adjustment again by clicking **Update** and after configuration perform a reboot (restart of the phone). #### GXP 2124 **Login** To access the configuration interface of the Grandstream phone, you first need the IP address assigned to the phone. On many Grandstream models, the IP address is displayed directly on the screen; otherwise, determine it by pressing the phone's "Menu" key and then selecting the point **Status** ➔ **Network status**. You will now see the assigned IP address (e.g. 192.168.0.5). **Create user for the BLF** Enter the IP address in the address bar of your browser. You will now see the configuration interface of your phone. {% hint style="info" %} **Important:** If you received the GXP 2124 unconfigured, the password is **admin**. {% endhint %} Use the menu to switch to the **settings** ➔ **Programmable keys**. In the following window, you can now enter the data as shown below. ![GXP2124\_BLF\_Config.JPG](/files/74849a35a45b094ef2240df1a79375725ff8202e) Select from the list of multifunction keys in the field **Mode** the **Busy Lamp Field (BLF)** select. Right next to it, select your own sipgate account (here in the example Account 1). In the field **Description** enter e.g. the name of the user. In the field **Value** enter the user's extension. So enter e.g. "42" to see the status of the user with extension 42. Confirm your entries by clicking **Save and execute**. To be able to use the pickup function via the BLF key on the Grandstream phone as well, it is necessary in the main menu under **accounts** ➔ **Account 1** ➔ **SIP settings** ➔ **Advanced functions** to also make the following setting: ![GXP2124\_PickupConfig.JPG](/files/7c518cfefdbdc02591567710c5b554548b2ccf15) Confirm your adjustment again by clicking **Save and execute**. Often the settings are only fully applied when you then perform a reboot of the phone (click Restart at the top right next to the language selection). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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