Difference between revisions of "LCR Logic"
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Here simple LCR (Least Cost Routing) e.g. by price is explained in example: | Here simple LCR (Least Cost Routing) e.g. by price is explained in example: | ||
== Example == | |||
We have 2 providers A and B. | We have 2 providers A and B. | ||
Revision as of 19:37, 30 March 2009
Here simple LCR (Least Cost Routing) e.g. by price is explained in example:
Example
We have 2 providers A and B.
Dialed destination is 921XXXXXXXXXX
Provider A has such rates for prefixes(destinations):
- 92 rate 0.1
No other destination starts with 92
Provider B has such rates for prefixes:
- 92 rate 0.05
- 921 rate 0.2
So LCR in MOR will group this providers in following order:
- Provider A with rate 0.1 (92)
- Provider B with rate 0.2 (921)
It first dials through Provider A, if call fails, Provider B will be used to send the call.
If call is ANSWERED, BUSY or there's NO ANSWER - then call ends. And Provider B is not used.
It is used ONLY when call fails - CONGESTION.
In following schema LCR logic is presented in graphical way:
