We are planning to change the numbering plan of our CCM cluster. Currently the numbering plan was based on the employee number which is 4 digits. We are planning to change it to six digits. We are having three locations.
Location A will be having 1XXXXX
Locaton B will be having 2XXXXX
System relaated numbers like meetme voice mail will be in the range 8xxxxx.
What is the best way to do this change. following is my plan;
1: take a backup of existing CCM
2: Delete all the phones using BAT
3. Upload the New details using BAT
4. Test the functionality after upload.
Please let me know if it is correct.