→ 1.20.4 Wireless XDP Parallel Mode
→ 1.16.1 SMDR (Station Message Detail Recording)—SMDR for Outgoing CO Line Calls
→ 1.17.5 Time Service—Time Service Switching
→ 1.11.1 Manager Features
→ 1.13.28 PT Programming
→ 1.13.7 PDN (Primary Directory Number)/SDN (Secondary Directory Number) Extension—SDN
Key mode, SDN Walking COS, and assigning SDN buttons through PT programming (KX-TDA100/
Extension users can make a call from extensions of a less-privileged COS by using their own COS
temporarily. (→ 1.20.1 Walking COS)
PC Programming Manual
2.8.11 [2-7-1] Class of Service—COS Settings
2.10.1 [4-1-1] Wired Extension—Extension Settings—Main—COS
2.10.10 [4-2-1] Portable Station—Extension Settings—Main—COS
PT Programming Manual
2.1.8 COS Programming
 Class of Service
Feature Manual References
2.1 Capacity of System Resources
1.3.20 CPC (Calling Party Control) Signal Detection
The Calling Party Control (CPC) signal is an on-hook indication (disconnect signal) sent from an analog CO
line when the other party hangs up. To maintain efficient utilization of CO lines, the PBX monitors each line's
status and when CPC signal is detected on a line, the PBX disconnects the line and alerts the extension
with a reorder tone.
CPC signal detection is programmable for incoming CO line calls, and for outgoing CO line calls.
If your telephone company sends signals similar to CPC, it is recommended not to enable CPC signal
detection on outgoing CO line calls.
If CPC signal is detected during a conference call (→ 1.3.16 Conference), the line is disconnected. The
remaining parties stay connected.
If CPC signal is detected during a call between a caller using the Direct Inward System Access (DISA)
feature (→ 1.4.7 DISA (Direct Inward System Access)) and an extension or an outside party, the line is