Station Features and Operation (PT/SLT)
User Manual 195
4.3.65 Paralleled Telephone Connection
A Proprietary Telephone (PT) can be connected in parallel with a single line telephone (SLT).
This feature allows you to enable or disable SLT ringing. When a parallel connection is made,
either telephone can be used.
To enable / disable SLT ringing
Conditions
• The default is "Parallel Off (No ring)".
• The PT can be used to perform normal operations whether or not the SLT is set to ring.
• When receiving a call:
—If SLT ringing is enabled, then both the PT and the SLT will ring except when the PT is
in "Hands-free Answerback" mode or Voice-Calling mode with the "Alternate Calling —
Ring/Voice" feature.
—If SLT ringing is disabled, then the PT rings but the SLT does not. However, the SLT can
answer the call.
• When the SLT is in use, the display and the indicators of the PT will work in the same way
as if the PT is in use.
• While the PT is receiving a call from a doorphone, the paired SLT will not ring.
User Manual References
4.3.3 Alternate Calling — Ring / Voice
4.3.49 Hands-free Answerback [PT only]
PT
Confirmation
tone (optional)
Dial 39.
Hang up or press
SP-PHONE
.
For Ring mode: Dial 1.
For No Ring mode: Dial 0.
No Ring
Ring
3 9
1
0
Lift the handset or press
SP-PHONE/MONITOR.
<PT Display Example>
— (when enabling)
— (when disabling)
Parallel Off
Parallel On
