BLF on DSS key flashing constantly

[smelvin]

Hi Guys

I have a weird problem in a 14 T46G handset installation whereby 3/4 of the handsets have a their DSS keys flashing constantly. These are set up as BLF to other extensions. When the user presses the flashing DSS key the extension that is configured appears twice. So for example if the DSS key is configured for extension 237, when the DSS keys starts flashing and the user presses the key, 237237 is dialled.

This leads me to think something is overwriting the DSS config on the handset. I don't know what though as it happens randomly and not all users are affected.

Sometimes it just goes away, the status light turns off, then after a few seconds turns green as normal.

If the extension is ringing it still stays flashing. If the extension starts and finishes a call, it stays flashing.

I need to reboot the handset for it to clear, which is not good.

Anyone else experience this?