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Solutions
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Astricon 2009
Tutorial on Local Number Portability and why it is important for
Asterisk based service providers Tired of getting screwed by by your SIP Trunking Providers? If you resell SIP trunking services from major carriers, then you have probably been shafted multiple times in billing disputes where you paid a lot more than you expected for termination. These settlement disputes often arise because the called number had been ported to a different provider. And the problem is getting worse as the number of ported number grows. The solution to your problem is to route calls based on the routing number, not the telephone number. In this session, Jim Dalton will provide all the details on arcane telecom details such as the difference between a telephone number and a routing number. This session will also explain how carriers route based on OCN (Operating Carrier Number) and how the LRN (Local Routing Number) relates to the OCN. In addition, we summarize the LERG (Local Exchange Routing Guide) and explain why routing based on NPA-NXX is wrong and why you need to route based on LRN which looks just like an NPA-NXX but is different. In the process, the role of the NPAC (Number Portability Administration Center) will be explained. To wrap-up, Jim Dalton will explain what the Local Number Portability options are for Asterisk users and how they can be implemented. |
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