1. User-programmed Call Forwarding

Users can divert incoming calls to their extension to another destination, which can be another extension, a UCD group, a virtual number or an external telephone number. Call forwarding is programmed by both the type of incoming call (internal, external or both) and by the following station-status options:

Direct call forward; Calls are immediately forwarded without regard to the status of the extension.

No Answer call forward; Calls are forwarded after ringing the extension for a pre-defined time, specified by either the "no-answer #1" timer or by the "no-answer #2" timer. The "no-answer #1" timer is used by the first call to the extension after the no-answer call forward has been programmed, with the "no-answer #2" timer being used for all subsequent calls.

External call forward; Incoming exchange calls are forwarded to the specified external telephone number. The call is always sent via LCR. If the extension is programmed for FAC, a valid FAC must be programmed as part of the ECF programming. The ability to use ECF is allowed or denied on an extension-by extension basis.

Follow-me call forward; users can use Preset follow-me call-forward while at their own extension to forward calls to their telephone to another destination. Remote follow-me call-forward can be used at another extension to set-up, cancel or change the follow-me call-forward parameters.

Multiple call forwarding may be set at an extension provided that there is no conflict. For example, internal calls can be directed to another extension whenever the user's keyset is busy, while at the same time internal and exchange calls can be forwarded to another extension under no-answer conditions. Call forwarding programmed by a user over-rides any preset system call-forward paths. Call-forwards can be chained, as long as a "loop" isn't created. If the last call forward point is a voicemail UCD, the system will send the call to the original extension's mailbox.

2. System Preset Call Forward

The system has 25 preset call-forward paths, with each path having up to 3 forwarding points. A forwarding point can be an extension number or a UCD group. Up to three of these paths can be assigned to each extension, with any path being assigned to multiple extensions.

If a UCD is the only forwarding point or the last forwarding point in a system forward path, calls sent to the UCD circulate according to the UCD group programming but will not advance to the UCD overflow or re-route destinations. If a UCD number is followed by one or more additional forwarding points, calls sent to the UCD by the forward path will circulate according to UCD programming until the Forward Step Timer expires. As before, the calls will not advance to the UCD overflow or re-route destinations.