According to Apple's website the iPhone4s frequency operates at the following ranges:
UMTS/HSDPA/HSUPA (850, 900, 1900, 2100 MHz);
GSM/EDGE (850, 900, 1800, 1900 MHz)
http://support.apple.com/...m/kb/SP643
In the Philippines the GSM frequencies operate at:
GSM Frequency Band - 1800 MHz (Single Band)
3G Frequency Band- WCDMA (UMTS) 850Mhz/1900Mhz/2100 MHz
UMTS/3G 1900(uplink)/2100(downlink) (Dual Band)
http://www.mobile31.com/2013/06/Philippines-GSM-Frequency-Band.html
My USA Sprint iPhone 4s has been unlocked so theoretically a SIM card purchased in Manila should allow me to get a Philippines phone number.
Theoretically this should work but I wanted to confirm from actual USA travelers to the Philippines if their unlocked Sprint iPhone 4s worked with a local SIM card.
Added (1). I want to get a SIM card (new phone number) and also a pre-paid calling card. The calling card should allow me to make all the local calls in the Philippines as well as international calls from the Philippines to the USA.
Will this approach work and has anybody done this?