Panasonic Kx Td500 User Manual

Station Features and Operation (PT/SLT)
User Manual241
Programming . If this parameter is set to zero, the caller cannot prolong the call duration. The 
caller can repeat the prolonging operation 10 times or without limit depending on the 
System Programming .
To detect the end of a CO-to-CO line call, CPC Signal Detection and Tone Detection can 
be assigned.
Tone Detection
The following three ways of Tone Detection are provided  to disconnect a CO-to-CO line call.
1. Cyclic Signal Detection:
Used to...

Station Features and Operation (PT/SLT)
242User Manual
Programming Guide References
1.7 DISA Port Assignment
2.3 Numbering Plan
– OGM Playback / Record
2.4 Class of Service (COS)
– TRS Level – Day/Night
2.5 System Timer
– CO-to-CO Line Call Duration Time
– DISA Prolong Time
– DISA Automated Attendant Time
– DISA IRNA Time
– Intercept Timer after OGM
2.7 Trunk to Trunk Restriction
2.8 System Option
– DISA prolong operation
– Dialing * in DISA CO-to-CO talking
– Destination Busy - DISA
– Illegal...

Station Features and Operation (PT/SLT)
User Manual243
Features Guide References
1.3 System Features
Outgoing Message (OGM)
1.5 Attended Features
Direct Inward System Access (DISA)
1.11 Transferring Features
Intercept Routing
User Manual References
3.2.10 [010] DISA / TIE User Code Set
4.4.6 Outgoing Message (OGM) Record/Playback 

Station Features and Operation (PT/SLT)
244User Manual
4.3.27 Do Not Disturb (DND)
Allows you to prevent other parties from disturbing you. Your extension will not receive 
intercom and outside calls.
Setting
Canceling
7235 / 7436

Do Not Disturb
FWD/DND
Lift the handset or
press SP-PHONE.Hang up or press
SP-PHONE. Press FWD/DND. Press Do Not Disturb (F2). Confirmation tone
and dial tone
F2
F3
F4
F5Do Not Disturb 
The FWD/DND indicator light turns red.
7235 / 7436

FWD/DND Cancel
FWD/DND
Lift the handset...

Station Features and Operation (PT/SLT)
User Manual245
Setting / Canceling
Conditions
DND also works for an incoming call from a doorphone.
DND does not work for the following calls:
— Hold Recall
— Timed Reminder Alarm Tone
— Calls directed by Intercept Routing 
Do Not Disturb Override
An extension in DND mode can be called by other extension users who are allowed to 
override DND in their Class of Service.

An extension user may have only one type of Call Forwarding / Do Not Disturb feature in...

Station Features and Operation (PT/SLT)
246User Manual

FWD/DND button
Regarding the PT (7050/7055/7250) without the FWD/DND button, it can be assigned to a 
flexible (CO, DSS, PF) button by Station, User or System Programming.

A PT user in DND mode can answer a call by pressing a flashing button which shows the 
arrival of the call.
Distinctive Dial Tone
When this feature is assigned to the extension, the extension user may hear a distinctive dial 
tone (dial tone 2) after going off-hook depending...

Station Features and Operation (PT/SLT)
User Manual247
3.2.5 [005] Flexible CO Button Assignment
4.3.28 Do Not Disturb (DND) Override
4.4.7 Remote DND (Do Not Disturb) Control 

Station Features and Operation (PT/SLT)
248User Manual
4.3.28 Do Not Disturb (DND) Override
You can override the Do Not Disturb (DND) feature set on the other extension, if permitted 
by System Programming beforehand.
Conditions
Class of Service
Class of Service (COS) programming determines the extension that can perform this 
feature.
If you hear a reorder tone after dialing 1, your extension is not permitted to execute Do 
Not Disturb (DND) Override feature by System Programming.
What if a busy tone...

Station Features and Operation (PT/SLT)
User Manual249
— Off-Hook Call Announcement (OHCA)
— Off-Hook Call Announcement (OHCA), Whisper
Programming Guide References
2.4 Class of Service (COS)
– DND Override
Features Guide References
1.6 Originating Features
Do Not Disturb (DND) Override
1.8 Ringing Features
Do Not Disturb (DND)
User Manual References
4.3.27 Do Not Disturb (DND) 

Station Features and Operation (PT/SLT)
250User Manual
4.3.29 Doorphone Call
Allows you to have a conversation with a visitor at your doorphone. You can also unlock the 
door from your telephone.
Calling an extension from a doorphone — operation for a visitor
Answering a doorphone call
Doorphone
Wait for an answer and talk.Press the Doorphone button for one second.
PT and SLT
Lift the handset or press SP-PHONE/MONITOR.
When you hear the doorphone ring tone at the extension;