This object specifies the forward signal indicating that the call was set up by a telephone operator rather than a direct-dialing subscriber. This classification is what lets downstream systems differentiate operator-assisted call volume from direct-dial volume in traffic and billing reports, which matters for carriers still supporting legacy operator-assisted call types on certain R2 trunks. A person placing a collect call through an operator would have that call marked with this forward signal, distinguishing it in the terminating exchange's records from an ordinary direct-dialed call.