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Hello makers
Caller ID and blocking for Android by Facebook
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The makers behind Hello
Here are the founders, developers, designers and product people who worked on Hello
Cliff Warren
I'm cliff
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Stephan Diederich
@stephan_diederich
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Gabriel Valdivia
Design partner for early-stage teams
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Andy Huang
@ahuang7
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Alexandra
Product Designer at Facebook
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Andrea Vaccari
Product Manager at Facebook
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