Table of contents
Installation  | .  | .  | 1  | Ringer mute  | .  | 15  | 
Parts checklist for i6767/i6768  | 
  | 
  | 1  | Call waiting  | 
  | 15  | 
Parts checklist for i6777/i6778  | 
  | 
  | 2  | Intercom  | 
  | 15  | 
Parts checklist for i6787/i6788  | 
  | 
  | 3  | Conference call  | 
  | . 16  | 
Telephone base installation  | .  | .  | 4  | Transfer an external call  | .  | 16  | 
Install handset battery  | . . . . 5  | Toggle between external and intercom call . . . .  | 
  | 17  | ||
Belt clip & headset (optional)  | .  | .  | 6  | Answer an incoming call during an intercom call . .  | 
  | 17  | 
Headset  | .  | .  | 6  | Find handset  | 
  | 17  | 
Belt clip  | .  | .  | 6  | Voicemail  | 
  | 17  | 
About caller ID  | . . . . 7  | Advanced operation  | 
  | 18  | ||
Voicemail service  | .  | .  | 7  | Directory  | 
  | 18  | 
If you subscribe to DSL service  | . .  | 
  | . 8  | Store a directory entry  | 
  | 18  | 
Wall mounting bracket installation (optional) . .  | .  | .  | 9  | Chart of characters  | 
  | . 19  | 
Desk/table bracket installation  | 
  | 
  | 9  | Search the directory  | 
  | 20  | 
Telephone settings  | 
  | 
  | 10  | Dial a directory entry  | .  | 20  | 
Handset layout  | 
  | 
  | 10  | Edit a directory entry  | .  | 20  | 
Telephone base layout  | 
  | 
  | 11  | Delete a directory entry  | 
  | 21  | 
Ringer volume  | . .  | 
  | 12  | Call log  | 
  | 21  | 
Ringer melody  | . .  | 
  | 12  | Review the call log  | 
  | . 22  | 
Key tone  | . .  | 
  | 12  | Make CID entries ready to dial  | 
  | . 22  | 
Language  | .  | . 13  | Dial a call log entry  | 
  | . 22  | |
Clear voicemail  | 
  | 
  | 13  | Save an entry to the directory  | 
  | 23  | 
Dial type  | . .  | 
  | 13  | Delete one or all entries  | 
  | 24  | 
Basic operation  | .  | . 14  | Handset display screen messages  | .  | 24  | |
Make, answer, and end calls with the handset .  | .  | .  | 14  | Redial list  | 
  | 25  | 
Handset speakerphone  | .  | .  | 14  | Dial from redial  | .  | 25  | 
Mute  | .  | . 14  | Delete a redial entry  | 
  | 25  | |
Volume  | 
  | 
  | 15  | Answering system operation  | 
  | 26  |