(Author’s note: this review below is as it is on 27 March 2012 and not modified since. I did not notice this as unpublished until right after publishing the AKB0048 review on 17 May 2012.)
Apart from the artist who sung the opening theme and the full-sized eye in the OP animation, Another (アナザー) is one of those anime where I had no expectations, or know what is to come.
Being taking place in 1998, you have to keep in mind about the technology at that time. Cellphone signals are analog and aren’t strong, so static being heard in the call means a weak signal and/or interference in the area. Since then technology has improved and/or problems fixed, so the “scary” element might not be posible today.