We have some large installations and it‘s hard to change routes at all SBCs simultaneously. So, I agree with this request but I think only the routes should be replicated. Depending on the provider you have different trunks. Ok, number map will be fine to replicate, but I think it’s better in this case to configure it to E.164 numbering and do the routing completely with E.164. Also DDI-Mapping can be done at routing. And this is better because you can notice a comment. This is important for larger setups. And most of our large setups are E.164 node setups where we have to send the full E.164 to the PBX. In all other cases you can strip down the number by the number mapping of SIp and GK before it will go to PBX.

Niels