T22P display backlight lights up every 2 mins

[jolouis]

(03-07-2014 12:49 PM)Yealink Support Wrote:  Hi Mike,

Thanks to your files. I have sent your issue to my R&D department.

I am experiencing the same problem with the latest RPS firmware on my T28... 2.72.0.31 RPS, and exactly the same symptom that the backlight turns on by itself (no activity at all) about once every 2 minutes.

--Edit --
Actually I'm pretty sure I know the cause of this. The T28 sends out a new REGISTER request every time the Server Expiry time hits (default is once every 180 seconds, but since our PBX is set to min-session of 90 seconds the phone seems to send a new REGISTER once eveyr 80 seconds or so).
For some reason, every time this REGISTER happens the phone's display lights up. My guess is that it thinks the account has changed somehow, and is treating the response from the REGISTER request as a sign to turn the backlight on.

While it might make sense to activate the backlight in response to a REGISTER, there's no reason to be doing it when the phone is re-registering the same account that was already active...

Hope that helps your development team get things sorted out quickly!

Any word on a fix for this?? I can post the config files if you need them.

Thanks!