Residential Long Distance OPEX 1-Plus Interstate Rate 4.5 cents/min OPEX 1-Plus Intra-State Rate click here Monthly Fee none* Inbound Toll-Free Rate 4.5 cents/min Inbound Toll-Free Service $2/month** International Rates click here Billing Increments 1 minute Minimum Call Length 1 minute Applicable Fees $2 if your bill is under $20. Business Long Distance OPEX 1-Plus Interstate Rate 4.5 cents/min OPEX 1-Plus Intra-State Rate click here Monthly Fee none* Inbound Toll-Free Rate 4.5 cents/min Inbound Toll-Free Service $2/month** International Rates click here Billing Increments 6 seconds Minimum Call Length 18 seconds Applicable Fees $5 if your bill is under $50. *A **$2/month for the first inbound toll free line, and 53 cents for each additional inbound line OPEX eBill is a secured electronic invoice. OPEX will provide users a convenient monthly email notification to initiate access to the current month’s invoice. Cost: FREE OPEX Paper-Bill is a regular hard-copy monthly invoice send via US Mail. Cost: FREE OPEX Combo-Bill is a combination of both eBill and Paper Bill.  OPEX will send you an electronic notification of your bill as well as hard copy invoice send via US Mail.  Cost: $1.99 Receive an 8% discount by prepaying for your OPEX service! The minimum prepay amount is just $20 for residential customers and $50 for business customers. There is a 99 cent charge every time you have to recharge your account. OPEX will charge the pre-pay increment to your credit card or checking account upon signing up with OPEX's Service. All additional charges to your credit card or checking account will be on a recurring basis when your OPEX Service has used up 90% of your pre-pay increment. You may change your pre-pay increment at any time. Pay your OPEX bill with Auto-Pay, which will automatically deduct your monthly balance due from either your checking account or any major credit card. Pay your bill yourself, via check sent through US Mail, every month. To switch your long distance to OPEX, simply click here to find out what our rates are in your area and to begin the order process. Your information is only used *strictly* for the sole intention of setting up your OPEX long distance account. Your information will never be sold or given to any third party. To apply for OPEX Long Distance service, use the links below to direct you to our online or printable offline application forms: