Panasonic KX-T336 System Reference Manual page 301

2.00 Held Call Reminder
Description
When the Hold, Exclusive Hold or Call Park
(system or station) function has been activated,
the party on Hold cannot be kept waiting longer
than a specific time. A call (when on-hook) or call
waiting tone (when off-hook) is generated to the
attendant console or extension as a reminder that
there is a party on Hold.
The alarm tone sent when the handset is off
hook, is heard through the speaker of a PITS and
through the handset of an SLT.
To execute this function, set "System-Operation",
Held Call Reminder to "Yes."
The extension and Attendant times for this
function to be activated are respectively set by
"System-System Timer", Held Call Reminder and
Held Call Reminder (ATT).
In order for the call waiting tone to be sent, the
feature number for "Call Waiting Set" must be set.
Programming
System Programming
"System-Operation (1/3)",
Held Call Reminder
"System-System Timer",
Held Call Reminder
Held Call Reminder (ATT)
"System-Numbering Plan
(05/11)",Call Waiting Set
Reference
VT Dumb
9-D-1.01 10-C-4.00
9-D-3.00 10-C-6.00
9-D-6.05 10-C-10.00
3-E-2
(70695)
Conditions
If more than one call is placed on hold at a PITS
extension, this function is executed starting with
the earliest held call.
In a PITS, the CO line and extension Held Call
Reminder call signals have respectively the
same ringing pattern as the CO line and
extension incoming call signals, and a monotone
call signal is sent.
While the Held Call Reminder call signal or call
waiting tone is being sent, if your PITS has a
display, it shows:
Held Reminder
In an SLT, the CO line and extension Held Call
Reminder call signals are exactly the same as
the CO line and extension incoming call signals.