Sorry for ambiguos title.
Running CUCM 188.8.131.5200-4
UserDeviceProfile is all ok and ExtensionMobility works with no issues.
The line is confgured with CSS against the CallForward options.
At times, the user sets CFA to a number and this fails. whe you check his Line settings in the UDP the CFA CSS has been removed and replaced with 'none'
I can't see any bug on this except a random one where the css is et before line descriptio, but it works for teh other 12 users all ok.
any thoughts? as not sure what is causing this or how to even look at fixing.