From our perspective there is no difference between a medium business and a large business that only has a single site. All the features, advantages and disadvantages that applies to a medium business also applies here, with the only difference being that each distinct office now gets it's own PABX. The following is in addition to those listed under medium business.


Features


• Inter-branch transfers.

• Direct extension calls between branches.


Advantages


• Free inter-branch calls.


Disadvantages


• Monitoring (idle/ringing/busy) of extensions at remote branches not currently possible.

VoIP for the large business