Mandatory Account Codes
Mandatory Account Codes allows you to make long distance calls from your phone by dialing a numerical account code, which will also help in correlating who made which outgoing call and will be reported in the billing information for each call.
To use Mandatory Account Codes:
1. Dial the number you wish to reach, then listen for a stutter dial tone.
2. Then dial your preselected account code.
3. Your call will then be placed.