For VVX phones, it is 5.5.0 Press "Menu" on your Polycom phone. Enter your password; the default password is '456'. Next, select "Admin Settings", followed by "Network Configuration".Scroll down using the arrow hard keys until you see "Server Menu".
Since it’s still very early, not many ROMs are available currently for the device, and the available ones are in the development phase.
All ROMs are in working conditions but do not get surprised if you notice a few minor bugs here and there.
Besides, there will still be hundreds of devices that might never get the official Kit Kat update from their manufacturers.
Thanks to the brilliant development community of Android that makes no distinctions between the old and new devices and keeps striving to distribute a new treat to one and all equally.
On the same screen, please note your Model as well.
In many cases, this information can also be found on the bottom of the phone albeit printed very small.
That simply means that you can enjoy Android 4.4 ROM on your device even if it has been declared unfit or undeserving by the OEM.
The only condition, however, that you have to fulfill is to have root access and a custom recovery like Clockwork Mod or TWRP Recovery on the device you own.
For the last couple of weeks, we have been sharing Android 4.4 Kit Kat ROMs for a good bunch of devices.