Yeah sms/calling over LTE does not work
. The good news is it's very fast/smooth. It runs on CM's kernel so its fast at least. It's a first build so I'm sure this will get fixed soon, in fact this is the first official nightly of carbon rom.
Edit: also very strange proximity sensor bug...if you cover the sensor with your hand even just a little bit it will shut the screen off and right when you move it away from the sensor it will turn back on. It's strange I have never seen this before I though maybe it was pocket mode, but I unchecked it and it still does it. Oh well its a first release, lots of bugs is fairly normal. Cant wait to see what this looks like further down the road. Love this rom. Right up their with PA for me.
LG G2 LS980: PA 4.0 beta
Nexus 7 2013: PA 4.1 Beta
IPhone 5: IOS 7.0.6 Jailbroken
Motorola Xoom: Omnirom 4.4.2
Motorola Photon: 2.3.5, Locked bootloader