If you’ve ever tried to read your monthly phone bill, you know that the system of charges for traditional phone services is virtually incomprehensi- ble to the average person. One of the big benefits of VoIP is that it makes the POTS-PSTN model, together with its complicated billing structure and weird terminology, just go away.
Traditional carrier services, unlike VoIP telephony, are heavily regulated. That’s why you get a phone bill with more small print than the phone book, filled with monthly line-access charges, per-minute usage charges, service charges, taxes, and special fees all applied to the number and type of individual lines your company or family uses.
To add to the confusion, under the PSTN model used in the United States, recurring service charges are tiered into service categories. The service cate- gories were developed over the years by the telecommunications industry along with the Federal Communications Commission (FCC) and the various states’ governing authorities.
After your phone company charges you line-access costs and for any call fea- tures you add to each line, they bill you for per-minute usage charges based on your service category. Each phone line you use may be billed for any of the following five service-charge categories:
Local
Intralata
Intrastate
Interstate
International
At present, international service is the most highly regulated category. Interstate is the second highest in terms of regulation. Intralata and intrastate come in third in terms of degree of regula- tion. Local service continues to be the least regulated.
But higher regulation and longer distances don’t necessarily mean higher cost anymore. Interstate is more regulated than intrastate and intralata, but it is much cheaper on a per-minute rate basis. For example, a corporate cus- tomer calling from Pittsburgh to Los Angeles (longer distance) might pay $.02 per minute. A call from Pittsburgh to Philadelphia (shorter distance), on the other hand, could cost anywhere from $.06 to $.62 per minute.
In the POTS-PSTN way of doing telephony, more regulation translates into more add-on service charges per line. Under VoIP, you can eliminate all regu- lated fees and charges because VoIP is totally nonregulated.
It is virtually impossible for VoIP to eliminate all charges for phone service. For instance, if you are a consumer, I recommend at least one POTS line in the home for 911 service and other local calls. Local ordinances require busi- nesses to have at least one POTS line for fire control and 911. Your primary goal is to reduce or eliminate the recurring monthly costs with the other four service-charge categories, and your secondary goal is to reduce your local service costs. With VoIP, you can accomplish these goals by making most or all toll-related calls on-net. But until the rest of the world converts to VoIP, you still need some connectivity to the local calling area using POTS.
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