If you are looking for the Personal Hotspot option in your iphone, in some networks it is not visible unless you configure the Internet Tethering.

Go to General-> Network -> Cellular Data Network and configure the following settings and then restart the device. (MMS is optional)
SUN Settings
MMS
- APN: mms
- Username:
- Password:
- MMSC: mmscenter.suncellular.com.ph
- MMS Proxy: 202.138.159.78:8080
- MMS Max Message Size: 307200
- MMS UA Prof URL:
Internet Tethering
- APN: minternet (fbband for SBW and CSU)
- Username:
- Password:
Smart Settings
MMS
- APN: mms
- Username:
- Password:
- MMSC: 10.102.61.238:8002
- MMS Proxy: 10.102.61.46:8080
- MMS Max Message Size: 307200
- MMS UA Prof URL:
Internet Tethering
- APN: internet
- Username:
- Password:
Globe Settings
MMS
- APN: mms.globe.com.ph
- Username:
- Password:
- MMSC: http://192.40.100.22:10021/mmsc
- MMS Proxy: 203.177.42.214:8080
- MMS Max Message Size: 307200
- MMS UA Prof URL:
Internet Tethering
- APN: http.globe.com.ph or Globe – Globe Telecom (Prepaid) , internet.globe.com.ph (Postpaid)
- Username:
- Password:



