SMS EMAIL gateway

I'm now in the Philippines, And I'm wondering if the SMS EMAIL gateway is available to us by default. I tried it and it didn't work. Do I have to manually edit the code inside the smsframework to cater our wireless operator here (smart, globe, sun) because by default when I view the drop down list I didn't see our local operators name.

I look in wiki sms gateway our local network operators doesn't include in the list. Is this an international default standard that all wireless operators should enabled the 555123568@operator.net? or depends on the local wireless operator?

Or do i have to plug my GSM phone on my drupal server to enable this feature? (this option is I think not gonna work for SMS email gateway, right? kinda off topic here)

Hope somebody can assist me. thanks in advance.