I am building route patterns for International calls. I have tried to find the definition of a DDI, but have been unsuccessful in my search.
The DDI is: PreDot IntlAccess IntlDirectDial
What does this particular DDI do?
Also, What does the IntlTollBypass do (pertaining to discarding of digits.
Finally, the difference between predot and PreAt. I understand what they do (PreDot removes all characters to the left of the decimal and PreAt removes all characters to the left of @, but what is the difference from a design perspective? When do you use one, versus the other?
-Thanks in advance