Panasonic KX-TDA15

1.10 Conversation Features
Feature Guide 155
1.10.9 Parallelled Telephone
Description
Multiple telephones can be connected to the same port. This is useful to increase the number of telephones
without additional extension cards. The combinations and features of the parallelled telephones are
described below.
Features Descriptions Connections
Parallel Mode Parallel mode involves the connection of an SLT to
an APT or a DPT that is connected to a Super Hybrid
port.
When parallel mode is enabled, the two telephones
function as follows:
• Both share the extension number of the
telephone connected directly to the PBX (main
telephone).
• Either telephone can make or answer a call.
EXtra Device Port
(XDP) Mode
XDP mode involves the connection of an SLT to a
DPT that is connected to a Super Hybrid port.
Unlike parallel mode, each telephone can act as a
completely different extension with its own extension
number. (→ 2.1.1 Extension Port Configuration)
Digital XDP Digital XDP involves the connection of a DPT to a
DPT that is connected to a Super Hybrid port. The
DPT that is connected directly to the PBX is called
the “master DPT”, and the DPT connected to the
master DPT is called the “slave DPT”.
Like XDP mode, each telephone can act as a
completely different extension with its own extension
number.
A third telephone (SLT) can also be added in parallel
or XDP mode with the master DPT.
Digital XDP connection allows the number of DPTs
that the PBX supports to increase.
APT/DPT + SLT
PBX
SLT
DPT
Extn. 101 Extn. 101
APT
Extn. 102
Extn. 102
SLT
DPT + SLT
PBX
SLT
DPT
Extn. 101 Extn. 105
PBX
DPT + DPT
DPT
Extn. 101 Extn. 201
DPT
Master
Slave
PBX
DPT
Extn. 101
Extn. 201
SLT
Extn. 101 (in Parallel Mode)
or
Extn. 105 (in XDP Mode)
DPT
Master
Slave
DPT + DPT + SLT