# Call Forwarding (TI/D4)

Call forwarding in the outgoing direction to a station on another system is subject to the normal Call Forwarding conditions and Class Of Service (COS) restrictions; that is, the station must have Call Forwarding - External Destination as one of its COS options. Incoming calls follow the call forwarding programmed for Call Forwarding - External Source.

See Call Forward for conditions, programming, and operation.