Need to check the current firmware/version on your Avaya 5610SW IP Phone? Just follow the steps below. This should also work on the Avaya 5621SW IP Phone and a multitude of other models. If it works on a model we don’t have listed, please comment below so we can add it. If you are an Avaya administrator, you know how hard it is to find good documentation and tutorials. Please help us make people’s lives easier!
Avaya 5610SW Firmware
Press the HOLD key and then type 8439 #.
Press the * key over and over until you reach the screen showing a *****.bin name.
In our example, the phone has the 10d01a2_8_3.bin file. To get the version number out of that you simply take the last numbers. So in our case the firmware version on the phone would be 2.8.3.
Hope that helps!