Yes, when setting up the new user, don't start with "restricted". Do a full setup first.
I also got the com.android.phone force close error when trying to make calls with the second user, which was created as a full profile.
The other two things I've noticed are:
* SMS can be sent, but received ones go to the Owner's profile.
* When on the second profile, there's no option to answer incoming calls. This works fine back on the owner's profile.
Has anyone else experienced the same issues? My phone is with stock rom, and rooted with CF-Auto-Root.