McDewey

C H A P T E R 39 External Call Transfer Restrictions • External Call Transfer Restrictions Overview, on page 507 • Configure External Call Transfer Restrictions Task Flow, on page 508 • External Call Transfer Restrictions Interactions, on page 512 • External Call Transfer Restrictions Restrictions, on page 512 External Call Transfer Restrictions Overview External Call Transfer Restrictions is a feature that you can use to configure gateways, trunks, and route patterns as OnNet (internal) or OffNet (external) devices at the system level. By setting the devices as OffNet, you can restrict the transferring of an external call to an external device and thus help prevent toll fraud. If you try to transfer a call on an OffNet gateway or trunk when the service parameter Block OffNet to OffNet Transfer is set to True, a message displays on the user phone to indicate that the call cannot be transferred. This chapter uses the following terms: Description Term A device that is configured as OnNet and considered to be internal to the network. OnNet Device A device that is considered as OffNet and, when routed, is considered to be external to the network. OffNet Device The location of the device, which is considered as OnNet or OffNet, with respect to the network. Network Location The device that gets transferred. The system considers this device as OnNet or OffNet. Originating End The device that receives the transferred call. The system considers this device as OnNet or OffNet. Terminating End A call for which only gateways and trunks call classification settings get used to classify it as OnNet or OffNet. Route Pattern call classification settings do not apply. Incoming Call Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 507