On 02/01/2010 03:56 PM, Carlos Alvarez wrote:
On 2/1/10 1:49 PM, Colin wrote:
Maybe I misread the original post if your not worried about the cost what are you looking for?
The LCR system is all about cost. However in building it, logic says you find the absolutely most granular model possible, and build up from there. That's the theory anyway. Then, again in theory, all rate decks should fit into that model and you have neat and concise database queries.
Carlos, as long as you have confidence in all your carriers' willingness to complete a call to a given destination at a given price, I think the simplest strategy for you would be to generate a retail deck according to the most granular prefix available for every destination among all carriers in your LCR table. When two or more prefix/provider tuples are of equal prefix length, choose the highest one, the lowest one, or average them, or average them and then add a certain %. It really just depends on how likely it is that a given carrier will not actually complete a call and you'll have to fall back to a much more expensive rate from the next-cheapest carrier.
Here is how I explain theory versus reality, and it certainly applies to the phone network:
LOL! :) -- Alex Balashov - Principal Evariste Systems LLC Tel : +1 678-954-0670 Direct : +1 678-954-0671 Web : http://www.evaristesys.com/