Panasonic KX-TDA50

1.10 Conversation Features
98 Feature Guide
1.10.9 Paralleled Telephone
Description
By connecting telephones in parallel, you can increase the number of telephones connected to the PBX
without adding additional extension cards.
Both wired and wireless telephones can be connected in parallel. Single line telephones (SLTs), analog
proprietary telephones (APTs), and digital proprietary telephones (DPTs) can be connected to other
telephones or connectors, allowing up to three telephones to be connected to the PBX through just one
extension port. Additionally, portable stations (PSs) can be linked to other telephones wirelessly and be
used as a "paired" extension.
The different type of parallel connections are described below.
Features Descriptions Connections
Parallel Mode Allows an SLT to be connected to an APT or DPT which is
connected to a Super Hybrid port of the PBX.
When the two telephones are connected in parallel mode:
• Both share one extension number (APT or DPT's
extension number).
• Either telephone can make or answer calls.
• If one goes off-hook while the other is on a call, the
call is switched to the telephone that goes off-
hook.
EXtra Device
Port (XDP)
Mode
Allows an SLT to be connected to a DPT which is
connected to a Super Hybrid port of the PBX.
Unlike parallel mode, XDP mode allows each telephone to
act as an independent extension with its own extension
number. (→ 2.1.1 Extension Port Configuration)
Digital XDP Allows a DPT to be connected to another DPT which is
connected to a DPT port or a Super Hybrid port of the PBX.
Similar to XDP mode, each DPT acts as an independent
extension with its own extension number.
In a Digital XDP connection, the DPT connected to the PBX
is called the "master DPT", and the DPT connected to the
other DPT is the "slave".
Additionally, an SLT can be connected to the master DPT
in either parallel or XDP mode.
PBX
APT/DPT + SLT
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