FB要reference而且要打电话sync什么意思啊

上周五facebook的onsite，然后今天早上给我说The feedback is all in! Once the feedback has been entered, there are two check points to review it. I’m working on getting the first check point scheduled ASAP.。
因为之前onsite前fb就问我要了一个reference，怕不够，然后回复的时候说了一句如果还需要reference随时联系我。
然后中午的时候HR又给我发了邮件，Thank you for the note!

If you have anyone from your professional network that would be able to speak on your behalf, please let me know.

Are you available sometime today or tomorrow to sync over a call?

然后说了下午有空，然后就没消息了，还在焦急等待中。这个sync是要干嘛的啊，难道直接悲剧了。

. 1point 3 acres补充内容 (2018-6-1 02:35):
UPDATE: HR说两个checkpoints 过了第一个了，今明会出来final results。Bless~~~

已经被P打击过一次了，感觉现在内心非常脆弱。

抱抱楼主，感觉还是很正面啊，应该很有戏，不知道现在怎么样了