In this example, the tenant is a SIP trunk that communicates with the Avaya SBC on a unique VLAN on the A1 interface. The Avaya SBC provides interworking with a SIP server that is shared among all tenants and is reachable via the B1 interface.

The tenant reaches Avaya SBC using an IP address on the above VLAN. The same IP is used for both signaling and media.

Each tenant uses a unique SIP domain. This can be used for routing calls to the correct tenant.

In this example, Avaya SBC licensing is configured once and applies to all tenants.