[Devel] lcr enhancement

[Juha Heinanen]

Ovidiu Sas writes:

 > This is useful when we plan to route all calls via a single gateway, but 
 > we would like to block expensive toll calls.

i would prefer to keep blocking functionality separate from gateway
selection functionality.  lcr module is already now reaching the limits
of complexity although there are still features missing that are
directly related to gw selection, for example, weighting of gws.

-- juha