How do I dial local and long-distance phone numbers?

US Local and Long-Distance Numbers

Dial “3” then “1” then the 10-digit phone number

Example:
3 1 555-555-5555

International Long-Distance Numbers

Dial “3” then “011”.
After a moment, the phone system will then guide you through dialing with voice prompts.
Enter the number when asked followed by the pound sign (#).

Example:
3 011 55 555 555 5555#

Summary

3 – Informs the phone system you want to make an external call
1 – Informs the phone system you want to make a domestic long-distance call
011 – Informs the phone system you want to make an international long-distance call