In Aug, 2010, I was very excited to learn the newly added gmail's phone call feature and wonder I could make use of it when I travel to Asia in September. Unfortunately, this feature is not available when I was out of the USA. Luckily I have my MagicJack around. Re-visiting the gmail official blog, I found that they have an update on Aug 26 saying this feature is only available in the US. Thus, this feature is not useful to me.