My customer has a problem with some users that can enter soft phone mode on CUPC but not desk phone mode. On the cupc server health the DESK Phone says "Not Connected Stopped".
The weird thing is that it works for others but for new deployments it doesn't.
I had upgraded presence to 6.0.3 from 6.0.2 and we thought this might be the issue so we reverted back to 6.0.2.
The cucm version is 220.127.116.111-2.
I have followed the deployment guide
And the cupc troubleshooting guide
They have plenty of licenses spare.
Any help / advice would be appreciated.