We currently have the need expand our 4 digit dial plan to 5 digits.
Overlaps in number ranges available to us from the telco.
Location is in NA (US and Canada)
currently we have 10 office deployed and have 19 more to add
We also have CUCM cluster in Europe and use Intercluster trunk ID
We are running CUCM 6.1 and Unity 5.1 Unified messaging.
I know I will have to do it by office/site location
1) VPN gateways are MGCP controlled and will have to be modified
3) Route patterns
4) User extensions = ID which will need to be modified
5) Unity Extensions will need to be modified
Have I missed a missed anything.
There does not seem to be much material on how to move from a 4 digit dial plan to 5 digit dial plan
Please let me know if there is a document out there.
Thank you all in advance.