4.3.4.3 Call Forwarding (CF)—by QSIGDescriptionThe PBX forwards the call to a destination extension in another PBX in QSIG network. The destination can beset on your own PBX on an extension basis as the forward destination of trunk calls (® 2.3.2 Call Forwarding(FWD)).If the same trunk group is used for the incoming call and the forwarded call, the following situation will bepossible.[Example]PBX-1QSIGPBX-2Dials "2000".PBX-1QSIGPBX-2Extn. 1001 Extn. 2000Extn. 1001 Extn. 2000(Forward Destinationof Trunk Calls: 1001)Call to 20001Forwardedto 100123Extn. 1000Extn. 10001 Extension 1000 of PBX-1 dialsextension number "2000", and the callis sent to extension "2000" of PBX-2through QSIG network.2The call is forwarded to the forwarddestination of trunk calls of extension2000, which is extension "1001" ofPBX-1.3The call between PBX-1 and PBX-2 isreleased, and the call is connecteddirectly to the forward destination ofextension 2000.Conditions• This feature complies with European Telecommunication Standard (ETS) specification ETS 300 257,Diversion supplementary services.• This feature can be enabled or disabled on each ISDN (QSIG) port of the PBX.412 Feature Guide4.3.4 QSIG Standard Features