Polycom BLF Ringing, when no one is even calling.

[JTEL]

An interesting BUG, if someone had this please respond. I am using version 5.0.10, with Polycom IP 550 phones. In middle of the blue, the phone blf buttons are flashing as if an extension is calling a different extension, or a incoming call is coming into a different extension. And in real, no one is calling. No incoming calls, and no calls from extension to extension is happening. I have this issue wiht a snom version 5.0.4 as well. Maybe its a polycom bug. but something doesn't make sense.

 

Using Polycom bootblock 3.0.2.0024 version 4.0.3.7562