The Call Transfer Security feature provides the capability to ensure that a subscriber does perform an unscreened or blind transfer to an invalid destination and that the transferred party is not left ringing for too long at another internal subscriber's endpoint. The transferring party is recalled and/or the call is redirected to its transfer intercept destination.
The administrator can enable the subscriber's Transfer Security feature for internal calls only, external calls only, or both.
Transfer security is not provided for calls transferred to external destinations.
Immediate vs. Delayed Recall
For transferred calls, the transferring party receives immediate recall
, and the transferred-to party is released, in the following instances:
Incomplete or invalid dialing
Attempt to transfer to a party that goes on hook prior to transfer
Provisioned restrictions on the subscriber attempting the transfer, the party being transferred, or the transferred-to party.
The transferring party receives delayed recall
, and the transferred-to party is released, if the transferred-to party doesn't answer within the configured time-out.
When endpoint-based CFNA is invoked and the forward-to destination is unable to accept the call, Lotus Sametime Unified Telephony immediately redirects the call to the transfer security intercept destination associated with the forwarding station's DN.
Call Transfer Security with Intercept
Call Transfer Security with Intercept redirects the transferred party to the transferring subscriber's Call Transfer Intercept Destination, in the following instances:
A call transfer recall occurs and the transferring subscriber is busy and cannot be camped onto or doesn't answer within the configured time-out.Parent topic: Call Transfer
An endpoint-based CFNA (Call Forwarding on No Answer) is invoked at the transferred-to party and the forward-to destination is unable to accept the call. In this case Lotus Sametime Unified Telephony immediately redirects the call to the transfer security intercept destination associated with the forwarding subscriber.
This functionality is also known as CFNA Intercept.
CFNA Intercept is for transferred calls only and not for CFNA-forwarded calls in general. Furthermore it is not implemented for calls redirected outside the BG or to the public network.
How to Provision a Subscriber for Call Transfer