What does *# 21 do to your phone?

What does *# 21 do to your phone?

D

Who can I call to test my phone?

i

How can I test my phone?

a

Is there a number to call to find out the time?

l

What number can I dial to test my phone?

How do you do test calls?

*

How do I check if a phone number is working?

#

How do I check the quality of my voice on my phone?

2

How do I verify a phone number?

1

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