Hi,

i have a customer with 5 location currently and expected to have around 20 locations at a later stage.

each location would host around 50 users except the HQ which have 300 IP phones.

at the HQ i have CCM and at the branches CME.

i am planning to have a 3 digits extensions with another digits for inter office

for instance:

4xyyy and 5xyyy

x: the branch

yyy: extension at the branch

any one with such experience recommand this setup or other.

Good day