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Calling Party Indication (Lamp Type)
Tie-line
A one station/one lamp type calling party indication panel
can be provided for certain specified stations (eight stations
or eight groups of stations)
The system can also be divided into a maximum of 8 groups
of stations (consecutive station numbers) so that each
group may have the calling party indication panels which
are common within the group. The party making the call is
indicated even if the call is made to any station in the group.
<Calling station memory>
It is also possible to equip the system with the "Calling
station Memory" function. Adopting this function
causes the calling party's lamp on the indication panel to
keep on lighting even if he cancels the call when the
called party is on other line or in Privacy mode.
< Indication mode without calling station memory >
1. A lamp of the calling station comes on and goes out
when the conversation is over.
2. When the call is made during conversation or privacy
mode, a lamp of the calling station comes on and goes
out when the calling station cancels the call.
< Indication mode with calling station memory >
1. The lamp at the station receiving the call comes on
when a call is made and goes out when the conver-
sation is completed.
2. When a call (camp-on-busy) is made to the busy or
the privacy station (with the privacy switch on), the
lamp of calling station comes on. The lamp will not
go out even if the original call is cancelled.
3. The lamp goes out after the conversation is canelled.
4. Dialing
without placing a call causes all lights to go out. *1
Note.
*1. In the case of Handset Master station TL-600M,
lift a station handset and confirm that a dial tone
is heard. Press after cancelling the dial tone
by pressing
1. The maximum number of calling stations is 120.
When 2 or 3 exchanges are connected by tie-lines, the
party who is calling through the other exchange is
not indicated.
2. The indication panel must be used with the Data
Transmitting and Receiving Units.
3. No. 200 programming of stations or groups of sta-
tions for which a calling party indication panel is
provided must be set up in exchange "A", No. 470
programming in exchange "B" and No. 740 program-
ming in exchange "C".
1. Station No. 239 has the indication panel No.2.
2. The group of stations No. 251-255 is provided with the
indication panel No. 5.
Example of registration
Indication
panel
1
2
3
4
5
6
7
8
First station
number
239
251
Last station
number
239
255
Indication panel at station No. 239
No.208
No.201
Camp-on-busy
No.239
Conversation
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