OPEX Long Distance Service , provides US-based companies and individuals with quality, inexpensive domestic and international long distance telephone service. 6 -Deep Discounts. We are pleased to announce the addition of TTI National to our line of 1-Plus Long Distance Services. You can see that any business or individual can easily benefit from the savings and quality service. Service will be billed direct via U.S. mail.
Cost varies from location to location.
For commercial and residential users. Web call details, updated every 6 hours . Automatic credit card payment. In some cases you may pay as little as 2.9 cents per minute for your state to state long distance calls. All calls are billed in 6 second increments and use advanced fiber optic networks.