[asterisk-users] Rate sheet "normalization"

[Alex Balashov]

On 03/12/2012 06:52 PM, Markus wrote:

> Now, if the "49" route of the first provider is cheaper, my
> system (a2billing) will still use the more expensive "4930" code
> because it is more specific.

There is a great deal of wisdom in this approach that you may wish to 
consider carefully before abandoning.  It is especially true in 
Europe, and really, anywhere outside the North American environment, 
which it doesn't sound like you're in to begin with.

Calls to mobile operators, as well as certain premium number 
allocation prefixes, can be many times more expensive than calls to 
fixed-line operators.  If 4945 were a mobile prefix that was three 
times more expensive than the overall +49 rate offered by the same 
provider, are you absolutely certain that you want to use the +49 rate?

Even if you have some vendor that gives you a blended overall rate for 
+49, and you want to cherry-pick expensive routes off their blended 
rate plan, that still means you need to sort by longest prefix 
(descending) to know what you're comparing it against.

-- Alex

-- 
Alex Balashov - Principal
Evariste Systems LLC
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