The thost of all proposed ideas is too high for a practical implementation with the exception of the solution proposed by Craig.

This would require legislation to require cellphones to be equipped with a "craigs signal detector" which would add about $0.31 to the cost of the phone i.e. way less than one percent.

The cost to the locality that wanted to be "protected" would be a few hundered dollars.

Thus Craigs solution is the only one of the proposed that has a chance of being implemented globally beacuse only a few (I hope) governments would propose a solution with a prohibitive cost.

As to my suggestion of taxing the $5 calls, I am more against excessive taxation than most and only suggested this to increase the annoyance fee.

As to the suggestion of "internal cell towers" When I did cellphones, I worked in a location that had one such and the penetration outside varied from 10-300 ft (a "real" celltower was nearby, if that was not the case the outside penetration would have been far greater). With an internal "cell tower" no faraday cage would be required since cellphones automatically pick up the strongest signal.

Erik