Chapter 4. Key Telephone Features Section 700 - Operation
4-10 DBS Manual - Revised April 2000 DBS-2.3/9.2-700
The length of a conversation on a CO line usually appears on display phones.
The duration display shows the number of minutes and seconds the call has
lasted.
The display does not begin right away; it begins either 16 or 30 seconds after
the call begins, depending on how the DBS is programmed.
Related Programming
• FF1 (System): Call Duration Display
• FF1 (System): SMDR Display Start Timer for CO Calls