One problem..... "Country Saver lets you call any one Sun Cellular mobile number of your choice in the Philippines".
Just want to share.. My husband used to call me on my Sun Cellular number by using Skype. Part of our routine was ringing me to wake me up at dawn and we both go online through Skype. As far as I remember, it's also 'cheaper' sending a text to any UK number using Sun number. About Php5/SMS and Php10 call/min compared to Smart and Globe which is about 3 times the amount from Sun.