We have a project going on, basically it's a tower that will support a multi-tenant on each floor (smart-buliding). The infrastructure was made to give the tenant the administrations of thier rules by the concept of virtualaziation on the firewalls to the internet.
no the challenge here as there is no virtualaziation on the CallManager till now. so how we can implement and give the administrations for each tenat to take care of their IP Phones ???
please advice ...