I've got Caller ID working. It took a small amount of effort, as the voip-user docs don't work right with the x100p (they're for the TDM400), but the docs on the lusyn page do work right.
I've also got SMS sending working, but I'm having a problem recieving. I can get it to go to the correct context and start the SMS app, all I get is
-- SMS TX 93 00 6D
-- SMS RX 93 00 6D
-- SMS TX 94 00 6C
-- SMS TX 92 01 FF 6E
I'm not certain what to do, as googling has not provided an answer.