First, it's Google, secondly, it is (mostly) free, and thirdly, it calls several phones, and then there are many other features that are interesting and useful for everyone.
Mbụ, ọ bụ site na Google, nke abụọ ọ bụ (ọtụtụ) n'efu, nke atọ ọ na-ejikọrọ ọtụtụ ekwentị, mgbe ahụ enwere ọtụtụ ihe ndị ọzọ dị mma na ndị bara uru maka ọtụtụ.