Function: Operator/Auto-attendant Mode Operator setting Auto-Attendant (DISA: 20s three paragraphs) (TS+ series) Auto-Attendant (DISA-12s one paragraph) (TS series) External line caller ID Transfer Caller ID (TS+ series) Intercom Caller ID (TS+ series) Call transfer Outgoing call transfer C. O. Line Transfer to C. O. Line Call pickup Call forwarding Call all extensions Three way conference Auto IP Dialing (TS+ series) Call Switch (call pick during conversation) Specific CO line dialing CO line booking CO line reservation Do not disturb Multiple dial-out modes