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Two (Tandem) CO Line Connection
Strata DK Digital Telephone 10/01 83
Supervision
➤ To supervise a tandem call and release it
5. Press &QI7UQ and
hang up.
You hear dial tone. Both Line
LEDs continue to flash
(exclusive-hold rate) and the
two lines are connected.
N1
and
N2 identify the connected
CO lines.
The LED turns OFF when the parties hang-up.
If the public telephone company provides auto
disconnect, the connection may release automatically
when the parties hang up. If not, the lines must be
supervised to be disconnected (see “Supervision” on
Page 83).
1. Press [DN]
...or
/LQH
...or 3RROHG/LQH
*US
.
You are connected to both CO
lines. Both Line LEDs flash
(in-use rate).
N1 and N2
identify the connected CO
lines.
2. If the parties have
hung up, go back on-
hook
...or if the parties are
still talking, press
&QI7UQ and hang-
up.
Both Line LEDs turn OFF and the connection is
released.
TRK-TRK N1 N2
JAN 10 THU 11: 57
TRK-TRK N1 N2
JAN 10 THU 11: 57