1.2 Making CallsUser Manual 23• The Single-CO (S-CO) and Group-CO (G-CO) button lights show the current status asfollows:Off: The line is idle.Green on: You are using the line.Red on: Another extension is using the line (S-CO), or other extensions are using alloutside (CO) lines in the outside (CO) line group (G-CO).• Emergency CallYou can dial preprogrammed emergency numbers after seizing an outside (CO) linewithout any restrictions.• You can press the S-CO or G-CO button without going off-hook first.• You may be restricted from making calls to certain outside parties. If you have questionsabout your calling restrictions, consult your manager or dealer.• To make a call to another party without going on-hook, press the FLASH/RECALLbutton. Pressing the button will re-access the outside (CO) line and provide an externaldial tone. You can dial the new phone number without going on/off-hook.• Hands-free OperationYou can make an outside (CO) line call and have a conversation in hands-free mode usingthe SP-PHONE button. Refer to "1.4.8 Talking to Another Party without Lifting the Handset(Hands-free Operation)".Customising Your Phone• 3.1.2 Changing Personal Settings Using Programming Mode–Line Preference—OutgoingSelect the seized line when going off-hook.• 3.1.3 Customising the ButtonsCreate or edit a Single-CO (S-CO) button, Group-CO (G-CO) button, or Other-CO (O-CO) button.
