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一个比一个火气大 $ E& B& F F% M8 \* L# D
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TTY/TDD enables you to use your device’s phone if you are hearing impaired.. w# G- V, T% K, U6 W
Select Default Mode to send and receive text. Select VCO Mode (Voice Carry Over). g/ Q% f- L! Y
to send voice and receive text. Select HCO Mode (Hearing Carry Over) to send text
/ V K- a i( { E4 vand receive voice. See the following section, “TTY Use With Sprint Service,” for
& `' A9 f$ ^. L. r7 B# z) imore information.
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这个会有影响? 我的一直是off的 |
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