Got an existing cluster (6.1.4) that has a dial plan problem. The Line has a partition with an unfiltered 9.@, and the device has a partition with route filter 9.@ with route filter for Emergency calls (needed to ensure correct routing as all users are EM and move between sites). This doesn't work as an Emergency Call matches the Unfiltered 9.@.
I could fix by Using a filtered Route Pattern on the Line, but there are missing numbers on the GBNP and I'd prefer to leave it unfiltered. I have tried changing the Emergency Number definitions to full Route Patterns, but the unfltered 9.@ still routed the call. This seems confusing as surely an exact match in the RP is more specific ?
I'd appreciate comments on this as to the logic used when using National Number plans, also any other suggestions gratefully received