Lync Phone signs out and then sign back in

We have facing an issue with Lync Phone Edition. When our presence is in Away, the Lync Phone signs out.

Checking the latest updates, we found the correction in new update for Lync Phone edition 7577.4463.

https://support.microsoft.com/en-us/kb/3050592

Below, the picture of my CX600 Lync Phone Version.

I wonder…..This Phone is PoE…. If does not have any cable connected…. There aren’t energy…..

After the download of the May 2015 Cumulative Update, we can Import to Lync Server.

To import, extract the cab file and the use the follow command..

Import-CsDeviceUpdate -Identity service:WebServer:pool2013.solonetwork.net.br -FileName C:\ucupdates75774463.cab

After import the cab file, check into Lync Server Control Panel.

Before starts deploy in production, I always created a test device.

To monitoring if the Lync Phone Device was up to dated, check the path:

\\<yourpath>\LyncShare\1-WebServices-7\DeviceUpdateLogs\Server\Audit\imageUpdates

In the first marking, the actual version is 4.0.7577.4455, but all this are in only one line. In second, the requested version…. 4.0.7577.4463

After some minutes, check the new log….. With the new version…..

Now, check your Lync Phone version…