As always, whenever travelling, my advise is to not use your home country's mobile/cellphone international roaming services. Unless money isn't an issue for you, international roaming charges are absurd and even more so when combined with data roaming usage. Not only will you get charged whenever you make a phone call while roaming, but receiving calls is also as expensive. And if you are using a smartphone and forget turn of international data roaming (and happily receiving your push notifications!), then you're in for a big surprise when you return home.
My wife recently travelled to the Philippines for work and I quickly went and do a search on the internet for advice and tips regarding mobile/cell services available in the Philippines. There are basically 4 big/popular service providers and they are Globe Telecom, Smart Communications, Sun Cellular and CURE (Cure's website not working, no idea why?).
