The Lotus Sametime Unified Telephony provides origin dependent translation and routing for calls handled by multiple feature servers in a VoIP (Voice over IP) network.
To provide origin dependent routing a parameter known as the OTG (Originating Tenant Group) is passed between system's in a network.
The origin-dependent routing feature allows assigning rate area and class of service to SIP subscribers, SIP servers, and SIP-Q gateways. During routing, originating rate area and class of service are obtained from the incoming SIP subscriber, SIP server or SIP-Q gateway; this information is used to select routes or media servers.
Parent topic: Routing and Translation