To use Annex J with a Eltek router V7621 A2, you need to have firmware version EAS108 installed.
Please follow the steps in this guide:

1. Enter the IP address of your router in the address bar of your browser.

2. Click “Admin” in the left menu.

3. Click “Firmware Upgrade”. Here you can upload the previously downloaded updated firmware version via “Durchsuchen” (“Search”).


After you’ve chosen the file, it will be shown automatically.

4. Please click “Upgrade”.



5. Now you will be asked again if you really want to make the firmware upgrade. Please click “OK”. The upgrade takes up to two minutes.

Please notice that your router needs to be turned on the whole time. The new firmware version is now installed. Please make a factory reset to avoid interruptions. After the reset, you need to enter your login data for internet and telephony again. If you’ve got any questions, please contact our support team via