| Caption | (From left, clockwise) Introduction of phone signal booster, cell phone with two SIM cards, introduction of “who who” voice functions, introduction of phone memory saver, and spam blocker app “whowho”. |
| Source | Source: KT Corp. |
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| Related Press Releases Links |
Whowho Protects 170,000 Thai Users from Spammers Whowho ปกป้องผู้ใช้มือถือในไทย 170,000 รายให้ปลอดภัยจากสแปม |