I noticed how many questions asked in this forum about dial plans and rules.
Much time could be saved if there was a little feature to test dial plans/rules set up. It would allow to type the number and see via what outbound routes and trunks it goes, and the result of transformations applied on the way to the trunk - all simulation, with no actual dialing.
In that quite popular system where it have been very well implemented it became one of their killer selling features.
