Here are the APN settings for DTAC Trinet :

Name: dtac internet

APN: www.dtac.co.th

User name: not set

Password: not set

MMC: 520

MNC: 05

APN type: Default

To set for iPhone: Settings > General > Network > Cellular Data Network To set for Android: Settings > Wireless and Network (More) > Mobile Networks > Access Point Names > New APN or Settings > More > Mobile networks > Access Point Names DTAC can send you these settings OTA (Over The Air) if you visit: http://dtac.co.th/ota