You can edit your APN information in your iPhone only if it is permitted by your carrier. Goto Settings  General Network Cellular Data Network Enter APN: telia Username:
Password: Done. These settings are saved automatically. Goto Settings General Network Cellular Data Network MMS SettingsAPN: telia
Username:
Password:
MMSC: http://mm/
MMS Proxy: 212.169.66.4:8080
MMS Max Message Size:
MMS UA Prof URL: Also don't forget to turn MMS on:
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