If you are dialing a number in the same area code as you, you don't have to dial all 10 digits.
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Q3: A typical residential phone system is wired
Q4: According to the National Electrical Code ,
Q5: Adding more capacitance to a telephone line
Q6: The tip wire is connected to ground
Q7: Each exchange can have a maximum of
Q9: The telephone in your house is connected
Q10: When the phone is on the hook
Q11: A Private Branch Exchange (PBX) is typically
Q12: Which of the following represents the possible
Q13: The standard termination for commercial telephone wiring
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