Thanks for this, i was getting a little worried because i have a callmanager system that will be upgraded and we have utilised the route filters for level 9 calls and outside access, it seems easier to manage than loads of route patterns !! although it did take a while to get my head around the exist and does not exist terminology.

You can always use individual route patterns and follow a numbering plan guide like below.

http://en.wikipedia.org/wiki/UK_telephone_numbering_plan

Sankar

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