C167 Paradoxical picture

Why not contact Zhan Huanyuan via phone?

Because the phone was lost in the process of escaping.

Also, he never asked for Zhan Huanyuan's number. Even if he didn't lose his phone, he wouldn't be able to contact her.

Furthermore, due to my experience talking to ghosts, I'm not sure if the one speaking to me over the phone is Zhan Huanyuan herself.

Because of these reasons