As well as being a hierarchical level of your directory, a site is expected to provide call logging data into the TIM Plus system, therefore, you need to configure one site for each PBX in your organisation.
TIM Plus allows up to five sites to be logged. If you need to log have more than five sites, you can upgrade to the our TIM Enterprise product.
The Sites panel is located on the top left-hand side of your screen.
...