紧急求助！ISU一位AP约电话面试。

I realize that this is coming a little late in the year, so if you have already accepted a position at another University, and if so I wish you the best of luck. If you are, however, still interested in joining my group I would like to schedule a time to talk with you on the phone.
Please reply to this email and let me know if you are interested in pursuing a position in my research group. Assuming that you are interested we will then schedule a phone call and I will give you more information regarding what I would like to discuss with you as well as what research projects you would likely be working on.

这是最后两段，前面介绍了一下他的研究方向什么的，给了个人主页。
第一次收到约面试的，有些什么要注意的啊？有没有同申ISU的面试过给点经验呗。
我估摸着是这个AP之前给offer了的大牛不去他那了现在才开始联系我。
最重要的是我的经历都是digital IC方向而他是侧重于analog IC的，面试的时候我要怎么说呢？