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Two (Tandem) CO Line Connection
Strata DK Digital Telephone 6/00 81
CO Buttons
This feature allows a station user to connect two CO lines, then drop out of the
conversation. On some systems, both CO
/LQH buttons (or 3RROHG/LQH*US
buttons) must appear on your telephone to allow Tandem connections to be
established from your telephone.
2. Dial a CO line access
code and then the
outside telephone
number.
See Table 13 on Page
134 or ask your
System
Administrator.
3. After the party
answers, press
&QI
7UQ
.
The [DN] LED flashes (in-use rate) and all parties are
conferenced.
If you receive a busy tone/no answer, press [DN] to
return to the original connection.
4. Press &QI7UQ and
hang-up.
You hear dial tone before you
hang-up The [DN] LED
flashes (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).
TRK-TRK N1 N2
JAN 10 THU 11: 57