No.
LL texted him twice, earlier in the day and then he checked VM at 5:51pm.
That's all that shows for Dec 7th.
I swear, I've been banging my head on these phone records ever since I got them, and I see nothing informative in them.
If anyone suspects GW, well....SK was sitting right there by him, at the party. They stood next to each other in the food line. If something happened between them, wouldn't it have been obvious to several others?
Here's what Fairy1 posted here, that Mrs K told them during the search: "Steven left that Christmas party his ward held VERY abruptly and after having been there just a short time. That info came from Deanne and she seemed concerned about it. But she pointed out that the next day was when he was out passing out flyers and when he helped the girls who were locked out. She doesn't seem to think it was depression, but I don't know if we should totally rule out something else. "
The problem with what Mrs K said? The party was on Dec 7th, and he helped the two children on the 11th -- so it wasn't "the next day".
ETA
Note that there's no mention of a phone call in Fairy1's report of what Mrs K said. The only mention I can find of a phone call associated with SK "abruptly" leaving the party, was just speculation posted here on WS.
THAT leads me to thinking something happened to upset him, at the party itself, unrelated to any phone call.